[LKP] [block] 34b48db66e0: +3291.6% iostat.sde.wrqm/s

From: Huang Ying
Date: Wed Jan 21 2015 - 20:21:43 EST

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FYI, we noticed the below changes on

commit 34b48db66e08ca1c1bc07cf305d672ac940268dc ("block: remove artifical max_hw_sectors cap")

testbox/testcase/testparams: lkp-ws02/fileio/600s-100%-1HDD-btrfs-64G-1024f-seqrewr-sync

c2661b806092d8ea 34b48db66e08ca1c1bc07cf305
---------------- --------------------------
%stddev %change %stddev
\ | \
47176 Â 2% -67.3% 15406 Â 4% softirqs.BLOCK
1110 Â 44% -51.0% 544 Â 35% sched_debug.cpu#8.curr->pid
22 Â 33% -48.9% 11 Â 43% sched_debug.cpu#1.cpu_load[0]
91 Â 43% +125.0% 204 Â 32% sched_debug.cfs_rq[4]:/.blocked_load_avg
17 Â 46% -65.2% 6 Â 31% sched_debug.cfs_rq[1]:/.runnable_load_avg
105 Â 43% +102.6% 213 Â 32% sched_debug.cfs_rq[4]:/.tg_load_contrib
163 Â 35% +62.6% 265 Â 27% sched_debug.cfs_rq[16]:/.blocked_load_avg
183 Â 29% +51.4% 277 Â 26% sched_debug.cfs_rq[16]:/.tg_load_contrib
1411 Â 31% -42.5% 812 Â 32% sched_debug.cpu#6.curr->pid
57565068 Â 15% +66.8% 96024066 Â 17% cpuidle.C1E-NHM.time
94625 Â 9% -32.5% 63893 Â 4% cpuidle.C3-NHM.usage
200 Â 14% -22.8% 155 Â 24% sched_debug.cfs_rq[8]:/.tg_load_contrib
244 Â 33% -39.0% 149 Â 11% sched_debug.cfs_rq[6]:/.blocked_load_avg
265 Â 31% -38.4% 163 Â 9% sched_debug.cfs_rq[6]:/.tg_load_contrib
4959 Â 9% -18.2% 4058 Â 1% slabinfo.kmalloc-128.active_objs
4987 Â 9% -18.6% 4058 Â 1% slabinfo.kmalloc-128.num_objs
19 Â 8% -19.7% 15 Â 14% sched_debug.cpu#0.cpu_load[1]
662307 Â 7% -12.6% 579108 Â 3% cpuidle.C6-NHM.usage
3028 Â 7% -12.3% 2656 Â 1% slabinfo.ext4_extent_status.num_objs
3028 Â 7% -12.3% 2656 Â 1% slabinfo.ext4_extent_status.active_objs
4.87 Â 0% +3291.6% 165.07 Â 0% iostat.sde.wrqm/s
1006 Â 0% +120.3% 2216 Â 0% iostat.sde.avgrq-sz
466 Â 0% +115.9% 1007 Â 0% iostat.sde.await
466 Â 0% +115.9% 1007 Â 0% iostat.sde.w_await
301 Â 0% -52.7% 142 Â 0% iostat.sde.w/s
2230 Â 2% -8.2% 2048 Â 2% vmstat.system.in

testbox/testcase/testparams: snb-drag/iozone/performance-2HDD-ext4-cfq

c2661b806092d8ea 34b48db66e08ca1c1bc07cf305
---------------- --------------------------
190033 Â 8% +485.5% 1112554 Â 8% iozone.time.voluntary_context_switches
4016641 Â 13% +107.0% 8315546 Â 19% iozone.128KB_8reclen.fread
14586734 Â 12% -51.6% 7055577 Â 23% iozone.256KB_128reclen.reread
6277142 Â 16% -45.3% 3431678 Â 32% iozone.131072KB_2048reclen.record_rewrite
2172125 Â 10% +76.5% 3833705 Â 27% iozone.64KB_32reclen.bkwd_read
4122415 Â 9% -46.9% 2188825 Â 18% iozone.128KB_128reclen.frewrite
4614021 Â 20% +68.3% 7766650 Â 28% iozone.128KB_128reclen.fread
5218680 Â 25% -35.9% 3344397 Â 22% iozone.32768KB_2048reclen.record_rewrite
13598531 Â 12% -42.4% 7830813 Â 29% iozone.128KB_32reclen.read
1747191 Â 5% +84.5% 3223043 Â 12% iozone.128KB_8reclen.rewrite
12146591 Â 6% -49.1% 6185679 Â 5% iozone.256KB_16reclen.read
5801437 Â 1% -44.3% 3234246 Â 8% iozone.32768KB_4096reclen.read
3407258 Â 19% -30.3% 2374690 Â 33% iozone.64KB_32reclen.fwrite
4273739 Â 3% +72.0% 7349316 Â 15% iozone.4096KB_2048reclen.bkwd_read
5653011 Â 1% -35.6% 3641226 Â 27% iozone.65536KB_4096reclen.bkwd_read
6849239 Â 20% +81.3% 12418997 Â 18% iozone.256KB_32reclen.read
9456112 Â 13% -29.8% 6640684 Â 20% iozone.512KB_4reclen.random_read
1754 Â 7% -30.5% 1219 Â 9% iozone.time.involuntary_context_switches
10305719 Â 15% -30.5% 7160220 Â 35% iozone.512KB_64reclen.bkwd_read
4322216 Â 2% -34.4% 2834349 Â 11% iozone.262144KB_2048reclen.random_write
8468758 Â 14% -24.0% 6433265 Â 23% iozone.65536KB_1024reclen.reread
4076482 Â 2% -30.8% 2820015 Â 24% iozone.262144KB_2048reclen.rewrite
9333621 Â 1% -29.7% 6558928 Â 8% iozone.65536KB_64reclen.reread
8034518 Â 12% +29.3% 10387452 Â 10% iozone.4096KB_512reclen.random_read
8948555 Â 3% -37.8% 5562080 Â 34% iozone.131072KB_2048reclen.freread
2883286 Â 1% -28.9% 2049844 Â 9% iozone.131072KB_2048reclen.fwrite
4530075 Â 16% -21.4% 3559817 Â 6% iozone.16384KB_16384reclen.bkwd_read
9647639 Â 11% -23.8% 7355867 Â 11% iozone.1024KB_8reclen.bkwd_read
8885460 Â 6% -22.3% 6908005 Â 18% iozone.32768KB_128reclen.read
9120389 Â 12% -18.9% 7395338 Â 7% iozone.1024KB_512reclen.fread
3487268 Â 0% -23.6% 2663962 Â 17% iozone.262144KB_4096reclen.random_write
3525970 Â 21% +38.2% 4872904 Â 3% iozone.128KB_8reclen.record_rewrite
9309792 Â 14% +20.6% 11232047 Â 13% iozone.512KB_4reclen.read
9088515 Â 1% -42.8% 5197158 Â 35% iozone.262144KB_2048reclen.random_read
4328487 Â 11% -34.4% 2838483 Â 20% iozone.256KB_16reclen.fwrite
4292935 Â 21% +61.9% 6951375 Â 13% iozone.4096KB_4096reclen.reread
5062737 Â 1% -18.2% 4142609 Â 17% iozone.131072KB_8192reclen.stride_read
8193457 Â 2% -15.4% 6931191 Â 27% iozone.8192KB_2048reclen.freread
6627823 Â 10% +17.5% 7789683 Â 16% iozone.8192KB_1024reclen.random_read
3006133 Â 27% +43.7% 4318375 Â 8% iozone.256KB_32reclen.fwrite
7274645 Â 17% +21.7% 8850043 Â 13% iozone.4096KB_1024reclen.random_read
6636384 Â 2% +31.1% 8701978 Â 3% iozone.8192KB_128reclen.stride_read
3501529 Â 13% +24.9% 4373804 Â 9% iozone.128KB_128reclen.random_write
11315178 Â 10% -15.7% 9537488 Â 16% iozone.2048KB_8reclen.reread
3473828 Â 8% -19.6% 2793577 Â 14% iozone.131072KB_8192reclen.record_rewrite
4963222 Â 8% -18.4% 4049269 Â 16% iozone.524288KB_8192reclen.random_read
3917486 Â 1% -32.6% 2640873 Â 10% iozone.32768KB_4096reclen.record_rewrite
4097783 Â 12% +27.5% 5225546 Â 3% iozone.16384KB_8192reclen.reread
8266620 Â 12% -26.8% 6050991 Â 7% iozone.131072KB_1024reclen.reread
3002614 Â 12% +25.2% 3760021 Â 5% iozone.8192KB_1024reclen.fwrite
11461219 Â 8% -36.9% 7228334 Â 37% iozone.256KB_4reclen.read
4153052 Â 8% -16.8% 3456496 Â 11% iozone.131072KB_1024reclen.random_write
3370193 Â 1% -15.0% 2866094 Â 12% iozone.131072KB_8192reclen.random_write
7333520 Â 10% +21.8% 8931293 Â 5% iozone.4096KB_1024reclen.read
11797836 Â 6% -16.2% 9888848 Â 11% iozone.1024KB_32reclen.read
3669268 Â 5% -24.6% 2764993 Â 8% iozone.65536KB_4096reclen.record_rewrite
4933341 Â 9% -22.5% 3823691 Â 13% iozone.262144KB_8192reclen.reread
9146208 Â 3% -20.3% 7287558 Â 15% iozone.131072KB_64reclen.reread
11070712 Â 16% +21.3% 13425431 Â 7% iozone.512KB_512reclen.reread
3389460 Â 3% -18.3% 2768805 Â 15% iozone.131072KB_4096reclen.random_write
6973136 Â 6% -26.1% 5150644 Â 27% iozone.128KB_128reclen.bkwd_read
1648348 Â 7% +10.5% 1820994 Â 2% iozone.32768KB_8192reclen.write
8946805 Â 3% -22.7% 6917989 Â 18% iozone.65536KB_128reclen.random_read
9479095 Â 6% -17.3% 7838757 Â 11% iozone.2048KB_4reclen.reread
7044170 Â 5% +22.5% 8632284 Â 8% iozone.4096KB_512reclen.bkwd_read
425242 Â 4% -13.7% 366809 Â 12% iozone.131072KB_4096reclen
10184282 Â 4% -21.4% 8000632 Â 8% iozone.1024KB_1024reclen.bkwd_read
655333 Â 1% -19.4% 528199 Â 10% iozone.131072KB_2048reclen
3509893 Â 15% +37.1% 4813310 Â 16% iozone.512KB_128reclen.frewrite
3668357 Â 4% +16.6% 4276349 Â 6% iozone.2048KB_16reclen.frewrite
7322643 Â 6% +16.5% 8530304 Â 5% iozone.4096KB_128reclen.read
8914586 Â 3% -10.9% 7938958 Â 7% iozone.131072KB_128reclen.stride_read
8450503 Â 4% -16.6% 7048034 Â 13% iozone.16384KB_32reclen.reread
4454263 Â 7% -28.3% 3193178 Â 26% iozone.256KB_64reclen.random_write
8491147 Â 5% -13.5% 7348844 Â 9% iozone.16384KB_512reclen.random_read
3948585 Â 18% -22.8% 3049001 Â 9% iozone.512KB_64reclen.fwrite
10112307 Â 9% -23.2% 7769806 Â 18% iozone.2048KB_256reclen.freread
4876107 Â 2% -19.6% 3920473 Â 7% iozone.256KB_4reclen.record_rewrite
8774968 Â 3% -12.4% 7689767 Â 6% iozone.131072KB_64reclen.stride_read
2873532 Â 1% -23.9% 2186794 Â 17% iozone.262144KB_2048reclen.fwrite
3196205 Â 6% +14.6% 3661260 Â 6% iozone.2048KB_2048reclen.rewrite
3916092 Â 3% -14.8% 3336988 Â 2% iozone.65536KB_512reclen.fwrite
12945364 Â 4% -15.7% 10913159 Â 6% iozone.1024KB_512reclen.random_read
3694356 Â 3% +11.6% 4122174 Â 6% iozone.8192KB_16reclen.frewrite
5205805 Â 1% -20.2% 4152492 Â 14% iozone.262144KB_8192reclen.stride_read
7318041 Â 7% +10.1% 8055512 Â 5% iozone.8192KB_8reclen.freread
3359536 Â 5% -14.0% 2888377 Â 10% iozone.131072KB_16384reclen.record_rewrite
2217844 Â 5% -9.2% 2013486 Â 2% iozone.32768KB_2048reclen.fwrite
3486864 Â 0% -20.4% 2776651 Â 14% iozone.131072KB_1024reclen.fwrite
4104607 Â 9% +11.5% 4574911 Â 4% iozone.1024KB_64reclen.frewrite
8351037 Â 3% -11.6% 7379615 Â 6% iozone.8192KB_32reclen.reread
8472815 Â 8% +12.1% 9496427 Â 2% iozone.2048KB_8reclen.bkwd_read
9274098 Â 0% -21.7% 7263574 Â 8% iozone.131072KB_128reclen.reread
9198752 Â 2% -11.7% 8122596 Â 1% iozone.2048KB_4reclen.random_read
9888579 Â 5% +11.3% 11008403 Â 4% iozone.2048KB_128reclen.freread
4076419 Â 2% +9.8% 4474927 Â 6% iozone.4096KB_16reclen.random_write
9014509 Â 3% -19.4% 7262289 Â 18% iozone.65536KB_1024reclen.random_read
3797798 Â 6% +8.1% 4106139 Â 2% iozone.8192KB_64reclen.fwrite
9054887 Â 1% -34.3% 5953341 Â 43% iozone.65536KB_2048reclen.random_read
3272537 Â 3% +9.9% 3596834 Â 5% iozone.8192KB_4reclen.frewrite
8755063 Â 4% -9.3% 7941616 Â 4% iozone.8192KB_512reclen.random_read
2226548 Â 17% +23.9% 2757960 Â 1% iozone.131072KB_16384reclen.fwrite
2091038 Â 3% +4.7% 2190320 Â 2% iozone.32768KB_512reclen.write
4623937 Â 3% -7.7% 4267770 Â 5% iozone.2048KB_32reclen.fwrite
9608922 Â 4% +6.6% 10240058 Â 3% iozone.2048KB_256reclen.read
5484722 Â 3% -18.5% 4470600 Â 26% iozone.2048KB_1024reclen.record_rewrite
8653006 Â 1% -20.2% 6901968 Â 10% iozone.32768KB_256reclen.random_read
6595324 Â 2% -22.6% 5106872 Â 29% iozone.2048KB_128reclen.record_rewrite
742878 Â 4% -10.2% 667046 Â 4% iozone.512KB_32reclen
2569242 Â 0% -13.9% 2211849 Â 9% iozone.262144KB_8192reclen.fwrite
593852 Â 2% +4.5% 620773 Â 4% iozone.4096KB_8reclen
7731451 Â 1% -11.9% 6814549 Â 9% iozone.8192KB_8reclen.stride_read
4030276 Â 4% -11.8% 3555139 Â 4% iozone.16384KB_8reclen.rewrite
667670 Â 2% -9.0% 607569 Â 3% iozone.131072KB_1024reclen
4555344 Â 2% -7.0% 4238147 Â 5% iozone.131072KB_256reclen.random_write
663732 Â 1% -12.2% 582516 Â 8% iozone.262144KB_2048reclen
4436723 Â 1% -7.9% 4084226 Â 3% iozone.65536KB_64reclen.random_write
4436835 Â 6% -11.1% 3943089 Â 5% iozone.1024KB_32reclen.rewrite
400045 Â 1% -12.8% 348866 Â 8% iozone.131072KB_8192reclen
1284 Â 0% -7.4% 1189 Â 0% iozone.time.elapsed_time
1284 Â 0% -7.4% 1189 Â 0% iozone.time.elapsed_time.max
11829454 Â 19% +19.3% 14115355 Â 3% iozone.4096KB_256reclen.stride_read
660750 Â 3% +5.6% 698026 Â 2% iozone.4096KB_512reclen
8782251 Â 2% -10.4% 7866927 Â 12% iozone.131072KB_256reclen.fread
4112943 Â 1% -12.3% 3607095 Â 12% iozone.262144KB_1024reclen.rewrite
443953 Â 0% -10.9% 395738 Â 3% iozone.262144KB_4096reclen
3628536 Â 2% -4.3% 3472913 Â 3% iozone.8192KB_4reclen.fwrite
409787 Â 1% -13.8% 353441 Â 10% iozone.262144KB_8192reclen
2180729 Â 0% -1.7% 2143865 Â 0% iozone.16384KB_1024reclen.write
7134489 Â 13% +19.7% 8538015 Â 1% iozone.16384KB_128reclen.freread
4331701 Â 1% -7.9% 3991380 Â 3% iozone.16384KB_32reclen.random_write
672772 Â 2% -6.1% 631908 Â 1% iozone.131072KB_512reclen
1684066 Â 6% +10.3% 1857499 Â 1% iozone.65536KB_16384reclen.write
7560968 Â 0% -6.5% 7066438 Â 3% iozone.32768KB_64reclen.record_rewrite
8637488 Â 0% -17.2% 7149416 Â 15% iozone.16384KB_256reclen.random_read
409516 Â 2% -9.0% 372768 Â 7% iozone.262144KB_16384reclen
2039098 Â 2% +4.5% 2131410 Â 2% iozone.131072KB_128reclen.write
6820137 Â 1% -4.8% 6489596 Â 2% iozone.131072KB_512reclen.record_rewrite
3368515 Â 17% +16.6% 3928194 Â 4% iozone.8192KB_8reclen.frewrite
636959 Â 3% +5.3% 670460 Â 2% iozone.4096KB_1024reclen
8959946 Â 2% -16.9% 7444825 Â 27% iozone.131072KB_2048reclen.random_read
1730222 Â 3% +5.8% 1831099 Â 1% iozone.16384KB_16384reclen.write
689573 Â 2% -11.0% 613405 Â 7% iozone.128KB_128reclen
4529095 Â 2% +6.8% 4838213 Â 1% iozone.2048KB_16reclen.random_write
673658 Â 1% -6.9% 626975 Â 4% iozone.65536KB_64reclen
3988722 Â 2% -5.1% 3785551 Â 3% iozone.2048KB_4reclen.random_write
4434507 Â 1% -8.0% 4079221 Â 8% iozone.131072KB_512reclen.random_write
4209193 Â 1% -9.8% 3796922 Â 9% iozone.32768KB_512reclen.rewrite
1636367 Â 1% +5.6% 1728029 Â 2% iozone.512KB_8reclen.write
5399314 Â 2% -13.9% 4649006 Â 14% iozone.2048KB_4reclen.record_rewrite
8991216 Â 1% -18.2% 7358805 Â 31% iozone.131072KB_2048reclen.stride_read
2064325 Â 0% -2.6% 2011460 Â 0% iozone.16384KB_16reclen.write
694293 Â 1% -6.2% 651466 Â 0% iozone.131072KB_128reclen
3692595 Â 2% +6.9% 3949182 Â 4% iozone.16384KB_16reclen.fwrite
703495 Â 0% -8.0% 647314 Â 5% iozone.262144KB_64reclen
803189 Â 1% -5.8% 756954 Â 2% iozone.1024KB_512reclen
3367144 Â 3% -4.8% 3204188 Â 4% iozone.16384KB_4reclen.random_write
8821044 Â 3% +4.9% 9250799 Â 1% iozone.131072KB_128reclen.freread
2141849 Â 2% -2.9% 2079725 Â 2% iozone.4096KB_64reclen.write
9209523 Â 1% -10.5% 8244271 Â 14% iozone.262144KB_64reclen.fread
8771739 Â 2% -12.2% 7701390 Â 11% iozone.16384KB_128reclen.read
1.383e+08 Â 1% -3.2% 1.338e+08 Â 1% iozone.bkwd_read_KBps
5161430 Â 0% -23.4% 3952507 Â 25% iozone.131072KB_8192reclen.fread
7569441 Â 0% -4.0% 7264835 Â 2% iozone.65536KB_64reclen.record_rewrite
735869 Â 1% -4.7% 701571 Â 0% iozone.2048KB_32reclen
671317 Â 1% -5.2% 636480 Â 4% iozone.131072KB_256reclen
9163246 Â 1% -12.7% 7998765 Â 19% iozone.65536KB_1024reclen.read
6892685 Â 1% -31.6% 4717232 Â 42% iozone.8192KB_16reclen.record_rewrite
2769563 Â 1% -11.1% 2460867 Â 12% iozone.131072KB_16384reclen.frewrite
7538254 Â 1% -4.1% 7232391 Â 1% iozone.524288KB_64reclen.record_rewrite
5078676 Â 1% +2.7% 5216148 Â 1% iozone.32768KB_8192reclen.bkwd_read
5583111 Â 1% +1.9% 5688340 Â 1% iozone.524288KB_4096reclen.fread
7632609 Â 18% +21.8% 9298145 Â 0% iozone.524288KB_128reclen.bkwd_read
2103683 Â 1% -4.3% 2012622 Â 2% iozone.2048KB_128reclen.write
8544794 Â 11% +9.9% 9394465 Â 0% iozone.524288KB_1024reclen.read
7484883 Â 3% -5.3% 7090201 Â 2% iozone.131072KB_128reclen.record_rewrite
3943490 Â 0% -3.2% 3818389 Â 3% iozone.16384KB_8reclen.random_write
612882 Â 4% +5.9% 649253 Â 1% iozone.524288KB_1024reclen
1.049e+08 Â 0% -3.2% 1.016e+08 Â 1% iozone.record_rewrite_KBps
9068478 Â 0% -12.2% 7966289 Â 20% iozone.65536KB_1024reclen.stride_read
687809 Â 1% -4.1% 659293 Â 5% iozone.65536KB_128reclen
1956842 Â 0% -2.5% 1908160 Â 1% iozone.1024KB_16reclen.write
5620548 Â 1% +1.9% 5729397 Â 0% iozone.131072KB_4096reclen.fread
76075116 Â 1% -2.8% 73925417 Â 0% iozone.random_write_KBps
2053740 Â 1% +3.4% 2123938 Â 1% iozone.262144KB_256reclen.write
6013543 Â 1% -13.0% 5232692 Â 22% iozone.65536KB_4096reclen.stride_read
8878850 Â 1% -14.8% 7569198 Â 15% iozone.131072KB_64reclen.random_read
1.64e+08 Â 2% -3.4% 1.584e+08 Â 1% iozone.random_read_KBps
5677438 Â 1% -2.8% 5518952 Â 1% iozone.16384KB_4reclen.record_rewrite
9013379 Â 0% +2.5% 9237733 Â 0% iozone.524288KB_512reclen.read
6834910 Â 0% -5.1% 6486646 Â 5% iozone.32768KB_1024reclen.record_rewrite
1.629e+08 Â 0% -2.4% 1.59e+08 Â 1% iozone.read_KBps
3339864 Â 0% -10.4% 2991683 Â 10% iozone.32768KB_16384reclen.random_write
5962248 Â 0% -1.8% 5855187 Â 0% iozone.average_KBps
5279487 Â 0% -14.2% 4527825 Â 15% iozone.262144KB_16384reclen.bkwd_read
4931955 Â 19% +13.1% 5576843 Â 0% iozone.8192KB_8192reclen.read
1.309e+08 Â 5% -91.1% 11653700 Â 1% cpuidle.C3-SNB.time
24742 Â 4% -78.8% 5252 Â 0% cpuidle.C3-SNB.usage
107687 Â 0% -72.9% 29181 Â 2% softirqs.BLOCK
6 Â 47% +152.0% 15 Â 38% sched_debug.cpu#0.cpu_load[2]
0.35 Â 29% +151.1% 0.87 Â 25% perf-profile.cpu-cycles.tick_nohz_idle_enter.cpu_startup_entry.start_secondary
42787 Â 4% -88.6% 4871 Â 11% proc-vmstat.nr_dirty
171140 Â 4% -88.6% 19511 Â 11% meminfo.Dirty
0.37 Â 12% +163.0% 0.96 Â 23% perf-profile.cpu-cycles.wait_on_page_bit.filemap_fdatawait_range.filemap_write_and_wait_range.ext4_sync_file.do_fsync
0.36 Â 10% +172.6% 0.99 Â 25% perf-profile.cpu-cycles.io_schedule.bit_wait_io.__wait_on_bit.wait_on_page_bit.filemap_fdatawait_range
22.64 Â 1% -9.4% 20.52 Â 2% perf-profile.cpu-cycles.scsi_finish_command.scsi_softirq_done.blk_done_softirq.__do_softirq.irq_exit
0.31 Â 30% +169.6% 0.84 Â 24% perf-profile.cpu-cycles.__tick_nohz_idle_enter.tick_nohz_idle_enter.cpu_startup_entry.start_secondary
0.36 Â 17% +165.5% 0.94 Â 23% perf-profile.cpu-cycles.__wait_on_bit.wait_on_page_bit.filemap_fdatawait_range.filemap_write_and_wait_range.ext4_sync_file
190033 Â 8% +485.5% 1112554 Â 8% time.voluntary_context_switches
208 Â 32% -54.4% 94 Â 21% sched_debug.cpu#3.nr_uninterruptible
0.33 Â 11% +143.1% 0.79 Â 26% perf-profile.cpu-cycles.__schedule.io_schedule.bit_wait_io.__wait_on_bit.wait_on_page_bit
74462 Â 2% +223.6% 240966 Â 5% meminfo.Writeback
18613 Â 2% +223.7% 60247 Â 5% proc-vmstat.nr_writeback
0.61 Â 17% +139.2% 1.46 Â 13% perf-profile.cpu-cycles.filemap_fdatawait_range.filemap_write_and_wait_range.ext4_sync_file.do_fsync.sys_fsync
5 Â 20% +123.8% 11 Â 19% sched_debug.cpu#2.cpu_load[3]
1.171e+08 Â 4% +193.7% 3.439e+08 Â 5% cpuidle.C1-SNB.time
199468 Â 9% +254.2% 706600 Â 7% sched_debug.cpu#0.ttwu_count
6 Â 17% +116.0% 13 Â 18% sched_debug.cpu#2.cpu_load[2]
3.12 Â 6% -52.8% 1.47 Â 10% perf-profile.cpu-cycles.__const_udelay.ata_dev_select.ata_bmdma_qc_issue.ata_qc_issue.ata_scsi_queuecmd
1754 Â 7% -30.5% 1219 Â 9% time.involuntary_context_switches
1.59 Â 14% -54.0% 0.73 Â 22% perf-profile.cpu-cycles.iowrite8.ata_bmdma_qc_issue.ata_qc_issue.ata_scsi_queuecmd.scsi_dispatch_cmd
9 Â 11% +75.7% 16 Â 21% sched_debug.cpu#2.cpu_load[1]
2.45 Â 6% -52.7% 1.16 Â 13% perf-profile.cpu-cycles.delay_tsc.__const_udelay.ata_dev_select.ata_bmdma_qc_issue.ata_qc_issue
1.00 Â 16% -54.5% 0.46 Â 19% perf-profile.cpu-cycles.native_read_tsc.delay_tsc.__const_udelay.ata_dev_select.ata_bmdma_qc_issue
3.71 Â 2% -50.2% 1.85 Â 11% perf-profile.cpu-cycles.ata_dev_select.constprop.20.ata_bmdma_qc_issue.ata_qc_issue.ata_scsi_queuecmd.scsi_dispatch_cmd
5 Â 31% +105.0% 10 Â 19% sched_debug.cpu#2.cpu_load[4]
13 Â 22% +56.6% 20 Â 21% sched_debug.cfs_rq[1]:/.runnable_load_avg
0.76 Â 25% +102.6% 1.53 Â 17% perf-profile.cpu-cycles.wake_bit_function.__wake_up_common.__wake_up.__wake_up_bit.end_page_writeback
1.00 Â 31% +68.2% 1.68 Â 20% perf-profile.cpu-cycles.autoremove_wake_function.wake_bit_function.__wake_up_common.__wake_up.__wake_up_bit
0.99 Â 32% +65.0% 1.64 Â 21% perf-profile.cpu-cycles.default_wake_function.autoremove_wake_function.wake_bit_function.__wake_up_common.__wake_up
0.79 Â 24% +93.7% 1.53 Â 17% perf-profile.cpu-cycles.__wake_up_common.__wake_up.__wake_up_bit.end_page_writeback.ext4_finish_bio
0.99 Â 31% +62.5% 1.60 Â 22% perf-profile.cpu-cycles.try_to_wake_up.default_wake_function.autoremove_wake_function.wake_bit_function.__wake_up_common
19 Â 20% -27.8% 14 Â 27% sched_debug.cpu#3.cpu_load[0]
349094 Â 1% -44.9% 192443 Â 0% cpuidle.C6-SNB.usage
326733 Â 2% +60.7% 525033 Â 8% sched_debug.cpu#1.sched_goidle
603 Â 0% +75.6% 1058 Â 1% slabinfo.kmalloc-2048.num_objs
661534 Â 2% +60.0% 1058165 Â 8% sched_debug.cpu#1.sched_count
660896 Â 2% +60.0% 1057116 Â 8% sched_debug.cpu#1.nr_switches
207 Â 19% -39.0% 126 Â 9% sched_debug.cpu#2.nr_uninterruptible
569 Â 1% +69.1% 962 Â 2% slabinfo.kmalloc-2048.active_objs
1.91 Â 10% -39.4% 1.16 Â 11% perf-profile.cpu-cycles.ata_sff_tf_load.ata_bmdma_qc_issue.ata_qc_issue.ata_scsi_queuecmd.scsi_dispatch_cmd
1.68 Â 14% -35.4% 1.09 Â 14% perf-profile.cpu-cycles.__const_udelay.ata_sff_tf_load.ata_bmdma_qc_issue.ata_qc_issue.ata_scsi_queuecmd
246585 Â 6% +56.9% 386981 Â 6% cpuidle.C1-SNB.usage
568 Â 13% -26.0% 420 Â 6% sched_debug.cfs_rq[3]:/.blocked_load_avg
1.15 Â 19% -27.8% 0.83 Â 17% perf-profile.cpu-cycles.__ata_sff_port_intr.ata_bmdma_port_intr.ata_bmdma_interrupt.handle_irq_event_percpu.handle_irq_event
596 Â 13% -25.8% 442 Â 5% sched_debug.cfs_rq[3]:/.tg_load_contrib
9.03 Â 6% -40.5% 5.37 Â 3% perf-profile.cpu-cycles.ata_bmdma_qc_issue.ata_qc_issue.ata_scsi_queuecmd.scsi_dispatch_cmd.scsi_request_fn
1.19 Â 18% -29.8% 0.84 Â 20% perf-profile.cpu-cycles.delay_tsc.__const_udelay.ata_sff_tf_load.ata_bmdma_qc_issue.ata_qc_issue
1081 Â 0% +39.3% 1506 Â 1% slabinfo.kmalloc-256.active_objs
1.77 Â 5% -27.9% 1.28 Â 5% perf-profile.cpu-cycles.intel_idle.cpuidle_enter_state.cpuidle_enter.cpu_startup_entry.rest_init
1.89 Â 6% -29.2% 1.34 Â 4% perf-profile.cpu-cycles.cpuidle_enter_state.cpuidle_enter.cpu_startup_entry.rest_init.start_kernel
1.328e+08 Â 3% -31.6% 90791332 Â 2% cpuidle.C1E-SNB.time
1.92 Â 12% -28.7% 1.37 Â 4% perf-profile.cpu-cycles.handle_irq_event.handle_fasteoi_irq.handle_irq.do_IRQ.ret_from_intr
0.88 Â 16% +33.1% 1.17 Â 14% perf-profile.cpu-cycles.ata_sff_qc_issue.ata_bmdma_qc_issue.ata_qc_issue.ata_scsi_queuecmd.scsi_dispatch_cmd
1.45 Â 18% -23.1% 1.11 Â 10% perf-profile.cpu-cycles.ata_bmdma_port_intr.ata_bmdma_interrupt.handle_irq_event_percpu.handle_irq_event.handle_fasteoi_irq
330931 Â 9% +56.6% 518351 Â 2% sched_debug.cpu#2.sched_goidle
670807 Â 9% +55.7% 1044452 Â 2% sched_debug.cpu#2.sched_count
670199 Â 9% +55.7% 1043484 Â 2% sched_debug.cpu#2.nr_switches
1.87 Â 14% -27.0% 1.37 Â 4% perf-profile.cpu-cycles.handle_irq_event_percpu.handle_irq_event.handle_fasteoi_irq.handle_irq.do_IRQ
1.95 Â 13% -27.4% 1.42 Â 3% perf-profile.cpu-cycles.handle_fasteoi_irq.handle_irq.do_IRQ.ret_from_intr.cpuidle_enter
1.74 Â 17% -25.1% 1.31 Â 6% perf-profile.cpu-cycles.ata_bmdma_interrupt.handle_irq_event_percpu.handle_irq_event.handle_fasteoi_irq.handle_irq
2.04 Â 13% -26.9% 1.50 Â 6% perf-profile.cpu-cycles.handle_irq.do_IRQ.ret_from_intr.cpuidle_enter.cpu_startup_entry
60987 Â 3% -18.6% 49666 Â 1% sched_debug.cpu#0.nr_load_updates
1271 Â 2% +39.9% 1778 Â 1% slabinfo.kmalloc-256.num_objs
14.83 Â 4% -16.4% 12.39 Â 1% perf-profile.cpu-cycles.ata_qc_issue.ata_scsi_queuecmd.scsi_dispatch_cmd.scsi_request_fn.__blk_run_queue
1.17 Â 10% -18.9% 0.95 Â 6% perf-profile.cpu-cycles.ext4_da_get_block_prep.__block_write_begin.ext4_da_write_begin.generic_perform_write.__generic_file_write_iter
5.07 Â 8% +23.9% 6.28 Â 5% perf-profile.cpu-cycles.memcpy.swiotlb_map_sg_attrs.ata_qc_issue.ata_scsi_queuecmd.scsi_dispatch_cmd
5.69 Â 4% +21.8% 6.93 Â 5% perf-profile.cpu-cycles.swiotlb_map_sg_attrs.ata_qc_issue.ata_scsi_queuecmd.scsi_dispatch_cmd.scsi_request_fn
21 Â 11% -25.9% 15 Â 11% sched_debug.cfs_rq[3]:/.runnable_load_avg
325081 Â 11% -13.4% 281672 Â 10% sched_debug.cpu#3.ttwu_count
36465 Â 3% -8.7% 33291 Â 1% sched_debug.cfs_rq[1]:/.min_vruntime
340518 Â 9% +23.7% 421099 Â 8% sched_debug.cpu#3.sched_goidle
292710 Â 11% -12.9% 254841 Â 13% sched_debug.cpu#3.ttwu_local
688474 Â 9% +23.4% 849753 Â 8% sched_debug.cpu#3.nr_switches
688995 Â 9% +23.4% 850473 Â 8% sched_debug.cpu#3.sched_count
16.46 Â 3% -13.2% 14.30 Â 3% perf-profile.cpu-cycles.scsi_run_queue.scsi_next_command.scsi_end_request.scsi_io_completion.scsi_finish_command
4.00 Â 9% +27.7% 5.11 Â 9% perf-profile.cpu-cycles.start_secondary
3.94 Â 9% +27.9% 5.04 Â 9% perf-profile.cpu-cycles.cpu_startup_entry.start_secondary
16.55 Â 3% -13.3% 14.35 Â 3% perf-profile.cpu-cycles.scsi_next_command.scsi_end_request.scsi_io_completion.scsi_finish_command.scsi_softirq_done
53676 Â 2% -19.2% 43361 Â 5% sched_debug.cpu#3.nr_load_updates
16.42 Â 3% -13.1% 14.27 Â 3% perf-profile.cpu-cycles.__blk_run_queue.blk_run_queue.scsi_run_queue.scsi_next_command.scsi_end_request
16.45 Â 3% -13.2% 14.27 Â 3% perf-profile.cpu-cycles.blk_run_queue.scsi_run_queue.scsi_next_command.scsi_end_request.scsi_io_completion
16.41 Â 3% -13.1% 14.26 Â 3% perf-profile.cpu-cycles.scsi_request_fn.__blk_run_queue.blk_run_queue.scsi_run_queue.scsi_next_command
15.54 Â 4% -12.4% 13.61 Â 2% perf-profile.cpu-cycles.scsi_dispatch_cmd.scsi_request_fn.__blk_run_queue.blk_run_queue.scsi_run_queue
4203 Â 14% -18.4% 3428 Â 11% sched_debug.cpu#3.curr->pid
15.52 Â 4% -12.3% 13.61 Â 2% perf-profile.cpu-cycles.ata_scsi_queuecmd.scsi_dispatch_cmd.scsi_request_fn.__blk_run_queue.blk_run_queue
22925 Â 6% -12.1% 20156 Â 3% sched_debug.cfs_rq[3]:/.min_vruntime
12237 Â 2% -13.8% 10554 Â 1% sched_debug.cfs_rq[3]:/.exec_clock
27.55 Â 2% -11.5% 24.39 Â 0% perf-profile.cpu-cycles.cpuidle_enter.cpu_startup_entry.rest_init.start_kernel.x86_64_start_reservations
28.65 Â 1% -11.9% 25.23 Â 0% perf-profile.cpu-cycles.x86_64_start_kernel
28.65 Â 1% -11.9% 25.23 Â 0% perf-profile.cpu-cycles.start_kernel.x86_64_start_reservations.x86_64_start_kernel
28.65 Â 1% -11.9% 25.23 Â 0% perf-profile.cpu-cycles.x86_64_start_reservations.x86_64_start_kernel
28.65 Â 1% -11.9% 25.23 Â 0% perf-profile.cpu-cycles.rest_init.start_kernel.x86_64_start_reservations.x86_64_start_kernel
28.56 Â 1% -11.9% 25.17 Â 0% perf-profile.cpu-cycles.cpu_startup_entry.rest_init.start_kernel.x86_64_start_reservations.x86_64_start_kernel
25.22 Â 2% -10.3% 22.63 Â 0% perf-profile.cpu-cycles.do_IRQ.ret_from_intr.cpuidle_enter.cpu_startup_entry.rest_init
58292 Â 4% -14.9% 49600 Â 3% sched_debug.cpu#2.nr_load_updates
25.22 Â 2% -10.3% 22.63 Â 0% perf-profile.cpu-cycles.ret_from_intr.cpuidle_enter.cpu_startup_entry.rest_init.start_kernel
25700 Â 1% -8.7% 23453 Â 0% softirqs.SCHED
62870 Â 0% -10.4% 56344 Â 6% sched_debug.cpu#1.nr_load_updates
3.36 Â 4% -8.7% 3.07 Â 5% perf-profile.cpu-cycles.ext4_bio_write_page.mpage_submit_page.mpage_process_page_bufs.mpage_prepare_extent_to_map.ext4_writepages
22.96 Â 2% -8.6% 20.99 Â 0% perf-profile.cpu-cycles.irq_exit.do_IRQ.ret_from_intr.cpuidle_enter.cpu_startup_entry
22.78 Â 1% -9.6% 20.61 Â 2% perf-profile.cpu-cycles.__do_softirq.irq_exit.do_IRQ.ret_from_intr.cpuidle_enter
22.85 Â 1% -9.9% 20.58 Â 2% perf-profile.cpu-cycles.blk_done_softirq.__do_softirq.irq_exit.do_IRQ.ret_from_intr
22.68 Â 1% -9.2% 20.58 Â 2% perf-profile.cpu-cycles.scsi_softirq_done.blk_done_softirq.__do_softirq.irq_exit.do_IRQ
22.62 Â 1% -9.2% 20.54 Â 2% perf-profile.cpu-cycles.scsi_io_completion.scsi_finish_command.scsi_softirq_done.blk_done_softirq.__do_softirq
22.59 Â 1% -9.2% 20.52 Â 2% perf-profile.cpu-cycles.scsi_end_request.scsi_io_completion.scsi_finish_command.scsi_softirq_done.blk_done_softirq
7.48 Â 4% +10.2% 8.25 Â 1% perf-profile.cpu-cycles.__fsync_nocancel
8.71 Â 3% +10.6% 9.63 Â 1% perf-profile.cpu-cycles.ext4_da_write_end.generic_perform_write.__generic_file_write_iter.ext4_file_write_iter.new_sync_write
2080 Â 2% +76.2% 3667 Â 4% vmstat.system.cs
76575 Â 0% +8.4% 82997 Â 0% vmstat.io.bo

testbox/testcase/testparams: bay/dd-write/performance-1HDD-cfq-ext4-10dd

c2661b806092d8ea 34b48db66e08ca1c1bc07cf305
---------------- --------------------------
10 Â 0% -10.0% 9 Â 0% vmstat.procs.b
56496 Â 0% -46.2% 30420 Â 1% softirqs.BLOCK
3 Â 0% -33.3% 2 Â 0% ftrace.writeback_single_inode.sda.age
40537 Â 0% -36.5% 25733 Â 2% proc-vmstat.nr_dirty
162242 Â 0% -36.7% 102672 Â 2% meminfo.Dirty
41 Â 12% +2052.1% 898 Â 22% proc-vmstat.nr_vmscan_immediate_reclaim
8 Â 5% -66.7% 2 Â 15% ftrace.global_dirty_state.unstable
71545 Â 0% +84.3% 131846 Â 0% meminfo.Writeback
17904 Â 0% +83.7% 32884 Â 0% proc-vmstat.nr_writeback
15688 Â 31% +59.6% 25033 Â 27% proc-vmstat.compact_migrate_scanned
489655 Â 26% +39.6% 683333 Â 24% proc-vmstat.compact_free_scanned
258 Â 32% +52.1% 392 Â 5% slabinfo.xfs_buf.num_objs
7859 Â 0% -37.2% 4937 Â 2% ftrace.writeback_single_inode.sda.wrote
258 Â 32% +48.6% 383 Â 6% slabinfo.xfs_buf.active_objs
17773 Â 0% +84.8% 32842 Â 1% ftrace.global_dirty_state.writeback
516 Â 20% +31.6% 679 Â 18% sched_debug.cfs_rq[3]:/.blocked_load_avg
0.95 Â 11% -27.2% 0.69 Â 6% perf-profile.cpu-cycles.shrink_active_list.shrink_lruvec.shrink_zone.kswapd_shrink_zone.kswapd
626 Â 16% +29.1% 808 Â 14% sched_debug.cfs_rq[3]:/.tg_load_contrib
1.25 Â 15% +31.9% 1.64 Â 16% perf-profile.cpu-cycles.__find_get_block.__getblk_gfp.__ext4_get_inode_loc.ext4_get_inode_loc.ext4_reserve_inode_write
40510 Â 0% -37.4% 25347 Â 0% ftrace.global_dirty_state.dirty
638 Â 6% -17.4% 527 Â 15% sched_debug.cfs_rq[1]:/.blocked_load_avg
0.58 Â 33% +62.2% 0.93 Â 11% perf-profile.cpu-cycles.__ext4_journal_stop.ext4_dirty_inode.__mark_inode_dirty.generic_write_end.ext4_da_write_end
1.22 Â 6% -23.4% 0.93 Â 1% perf-profile.cpu-cycles.security_file_permission.rw_verify_area.vfs_read.sys_read.system_call_fastpath
1.62 Â 9% +40.2% 2.28 Â 18% perf-profile.cpu-cycles.default_idle.arch_cpu_idle.cpu_startup_entry.start_secondary
1.64 Â 9% +39.1% 2.29 Â 18% perf-profile.cpu-cycles.arch_cpu_idle.cpu_startup_entry.start_secondary
219 Â 4% +35.2% 296 Â 13% uptime.idle
29 Â 15% +38.8% 40 Â 11% sched_debug.cpu#3.cpu_load[4]
88 Â 9% +28.2% 113 Â 15% sched_debug.cpu#0.cpu_load[0]
12913 Â 16% +35.5% 17494 Â 8% proc-vmstat.pgmigrate_success
7.92 Â 8% -16.7% 6.59 Â 8% perf-profile.cpu-cycles.ret_from_fork
7.92 Â 8% -16.7% 6.59 Â 8% perf-profile.cpu-cycles.kthread.ret_from_fork
26598 Â 16% +36.8% 36397 Â 9% proc-vmstat.compact_isolated
67 Â 5% +21.0% 82 Â 11% sched_debug.cpu#0.cpu_load[1]
105 Â 5% +17.6% 123 Â 8% sched_debug.cfs_rq[3]:/.runnable_load_avg
63729 Â 5% +22.0% 77752 Â 9% sched_debug.cfs_rq[1]:/.min_vruntime
56 Â 6% +23.7% 69 Â 5% sched_debug.cpu#3.cpu_load[2]
39 Â 10% +30.8% 51 Â 4% sched_debug.cpu#3.cpu_load[3]
85 Â 4% +20.0% 102 Â 10% sched_debug.cpu#3.cpu_load[1]
71456 Â 5% +16.6% 83284 Â 11% sched_debug.cfs_rq[3]:/.min_vruntime
105703 Â 4% +10.5% 116819 Â 5% sched_debug.cpu#2.nr_load_updates
5.45 Â 4% -6.3% 5.10 Â 4% perf-profile.cpu-cycles.pagecache_get_page.grab_cache_page_write_begin.ext4_da_write_begin.generic_perform_write.__generic_file_write_iter
9662 Â 0% +7.9% 10421 Â 3% ftrace.balance_dirty_pages.sda.task_ratelimit
61966 Â 2% -9.2% 56254 Â 2% softirqs.RCU
94955 Â 0% +8.6% 103140 Â 4% ftrace.bdi_dirty_ratelimit.sda.dirty_rate
8.71 Â 3% +685.6% 68.42 Â 2% iostat.sda.wrqm/s
991 Â 0% +120.1% 2182 Â 2% iostat.sda.avgrq-sz
187.72 Â 0% -49.0% 95.64 Â 1% iostat.sda.w/s
760 Â 0% +77.6% 1349 Â 0% iostat.sda.w_await
756 Â 0% +77.8% 1345 Â 0% iostat.sda.await
141.80 Â 0% -12.3% 124.40 Â 1% iostat.sda.avgqu-sz
5549 Â 0% +2.0% 5659 Â 0% vmstat.system.cs
3489593 Â 0% +1.8% 3553306 Â 0% perf-stat.context-switches
5.71e+08 Â 2% +18.9% 6.787e+08 Â 4% perf-stat.cache-misses
3.054e+08 Â 3% +16.5% 3.558e+08 Â 3% perf-stat.LLC-load-misses
1.561e+09 Â 0% +5.9% 1.653e+09 Â 0% perf-stat.branch-misses
1.56e+09 Â 0% +6.4% 1.661e+09 Â 0% perf-stat.branch-load-misses
1.409e+10 Â 0% +3.7% 1.461e+10 Â 2% perf-stat.L1-icache-load-misses
151166 Â 0% +6.7% 161244 Â 2% perf-stat.cpu-migrations
1.065e+12 Â 0% +6.1% 1.13e+12 Â 0% perf-stat.cpu-cycles
93722 Â 0% +1.4% 95034 Â 0% vmstat.io.bo
8.095e+11 Â 0% +5.3% 8.528e+11 Â 1% perf-stat.L1-icache-loads
93726 Â 0% +1.4% 95037 Â 0% iostat.sda.wkB/s
1.123e+12 Â 1% +5.4% 1.184e+12 Â 0% perf-stat.ref-cycles
1.248e+11 Â 1% +5.2% 1.312e+11 Â 0% perf-stat.bus-cycles
3.305e+10 Â 0% +3.1% 3.408e+10 Â 1% perf-stat.cache-references
1.107e+08 Â 0% +3.3% 1.144e+08 Â 0% perf-stat.LLC-store-misses
1.479e+11 Â 0% +1.6% 1.502e+11 Â 1% perf-stat.branch-loads
7.971e+11 Â 0% +1.8% 8.114e+11 Â 1% perf-stat.instructions
1.709e+11 Â 0% +1.3% 1.73e+11 Â 1% perf-stat.dTLB-stores
2.877e+11 Â 0% +1.5% 2.919e+11 Â 0% perf-stat.L1-dcache-loads
2.876e+11 Â 0% +1.4% 2.917e+11 Â 0% perf-stat.dTLB-loads
1.482e+11 Â 0% +1.3% 1.501e+11 Â 0% perf-stat.branch-instructions

testbox/testcase/testparams: ivb44/fsmark/performance-1x-1t-1HDD-xfs-4M-60G-NoSync

c2661b806092d8ea 34b48db66e08ca1c1bc07cf305
---------------- --------------------------
:4 25% 1:4 kmsg.usbhid#-#:#:can't_add_hid_device
24990 Â 3% +64.3% 41060 Â 0% fsmark.time.voluntary_context_switches
393 Â 0% +3.4% 407 Â 0% fsmark.time.elapsed_time.max
393 Â 0% +3.4% 407 Â 0% fsmark.time.elapsed_time
39.02 Â 0% -3.3% 37.73 Â 0% fsmark.files_per_sec
11194 Â 0% +1169.6% 142124 Â 0% numa-vmstat.node0.nr_writeback
7721 Â 0% +1222.6% 102125 Â 0% numa-vmstat.node1.nr_writeback
30857 Â 0% +1224.0% 408538 Â 0% numa-meminfo.node1.Writeback
44886 Â 0% +1167.7% 569033 Â 0% numa-meminfo.node0.Writeback
54347 Â 0% -86.5% 7312 Â 0% softirqs.TASKLET
143 Â 21% +459.5% 800 Â 38% sched_debug.cfs_rq[27]:/.exec_clock
53525 Â 0% -87.9% 6479 Â 0% softirqs.BLOCK
1195 Â 6% -62.0% 454 Â 37% cpuidle.C3-IVT.usage
1133 Â 21% -67.4% 370 Â 13% cpuidle.C1E-IVT.usage
24990 Â 3% +64.3% 41060 Â 0% time.voluntary_context_switches
288 Â 29% +113.6% 615 Â 43% sched_debug.cfs_rq[22]:/.avg->runnable_avg_sum
151 Â 26% +102.0% 306 Â 41% sched_debug.cfs_rq[36]:/.exec_clock
75891 Â 0% +1188.1% 977548 Â 0% meminfo.Writeback
18919 Â 0% +1192.0% 244429 Â 0% proc-vmstat.nr_writeback
1131 Â 5% +148.6% 2811 Â 1% slabinfo.xfs_trans.num_objs
1131 Â 5% +139.0% 2704 Â 1% slabinfo.xfs_trans.active_objs
19072 Â 4% -23.5% 14593 Â 5% sched_debug.cpu#0.ttwu_count
291 Â 11% -59.2% 119 Â 8% time.involuntary_context_switches
450 Â 38% -51.7% 217 Â 27% sched_debug.cpu#36.curr->pid
552 Â 38% +69.8% 938 Â 17% sched_debug.cpu#42.sched_goidle
343 Â 16% -56.4% 149 Â 49% sched_debug.cpu#1.curr->pid
2886 Â 30% +101.3% 5808 Â 25% sched_debug.cfs_rq[19]:/.min_vruntime
957 Â 11% +111.9% 2028 Â 3% slabinfo.blkdev_ioc.num_objs
957 Â 11% +106.0% 1972 Â 4% slabinfo.blkdev_ioc.active_objs
166 Â 2% +81.7% 302 Â 1% slabinfo.kmalloc-2048.active_slabs
166 Â 2% +81.7% 302 Â 1% slabinfo.kmalloc-2048.num_slabs
1305 Â 31% +59.8% 2085 Â 16% sched_debug.cpu#42.nr_switches
475 Â 11% +74.9% 832 Â 21% sched_debug.cpu#37.sched_goidle
352 Â 28% -34.5% 230 Â 29% sched_debug.cfs_rq[40]:/.avg->runnable_avg_sum
1081 Â 21% -24.9% 812 Â 27% sched_debug.cpu#28.ttwu_count
472 Â 11% +48.9% 704 Â 27% sched_debug.cpu#41.sched_goidle
567 Â 26% +62.3% 921 Â 33% sched_debug.cpu#38.sched_goidle
671 Â 26% +47.1% 987 Â 29% sched_debug.cpu#34.ttwu_count
42 Â 16% +70.8% 73 Â 27% sched_debug.cfs_rq[20]:/.blocked_load_avg
2672 Â 2% +81.5% 4850 Â 1% slabinfo.kmalloc-2048.num_objs
170 Â 25% +59.2% 271 Â 4% sched_debug.cfs_rq[46]:/.tg_load_contrib
1044 Â 13% +56.8% 1637 Â 19% sched_debug.cpu#19.ttwu_local
2599 Â 2% +80.7% 4697 Â 1% slabinfo.kmalloc-2048.active_objs
167 Â 23% +59.2% 267 Â 5% sched_debug.cfs_rq[46]:/.blocked_load_avg
1301 Â 24% +56.4% 2035 Â 30% sched_debug.cpu#38.nr_switches
631 Â 24% -33.6% 419 Â 10% sched_debug.cpu#26.sched_goidle
1156 Â 11% +62.0% 1873 Â 17% sched_debug.cpu#37.nr_switches
249 Â 10% -40.4% 148 Â 17% sched_debug.cfs_rq[43]:/.tg_load_contrib
46 Â 16% +58.7% 73 Â 27% sched_debug.cfs_rq[20]:/.tg_load_contrib
124 Â 17% +26.2% 156 Â 15% sched_debug.cpu#34.ttwu_local
247 Â 10% -40.4% 147 Â 18% sched_debug.cfs_rq[43]:/.blocked_load_avg
1475 Â 21% -30.8% 1020 Â 12% sched_debug.cpu#26.sched_count
28 Â 15% -39.5% 17 Â 14% sched_debug.cfs_rq[0]:/.tg_runnable_contrib
1350 Â 15% -37.7% 840 Â 12% sched_debug.cfs_rq[0]:/.avg->runnable_avg_sum
1445 Â 21% -30.8% 1000 Â 13% sched_debug.cpu#26.nr_switches
811 Â 9% +38.3% 1122 Â 18% sched_debug.cpu#42.ttwu_count
2167 Â 10% +32.9% 2879 Â 6% sched_debug.cpu#7.ttwu_local
1861 Â 21% +33.9% 2492 Â 17% sched_debug.cpu#6.ttwu_local
14320 Â 4% -30.6% 9937 Â 4% sched_debug.cpu#0.ttwu_local
2292 Â 16% -26.6% 1682 Â 19% sched_debug.cfs_rq[5]:/.exec_clock
1159 Â 11% -21.7% 907 Â 15% sched_debug.cpu#43.ttwu_count
2522 Â 47% -41.3% 1481 Â 11% sched_debug.cfs_rq[43]:/.min_vruntime
1496 Â 5% +14.9% 1718 Â 5% slabinfo.blkdev_requests.active_objs
3648 Â 7% +33.4% 4866 Â 8% sched_debug.cpu#19.ttwu_count
9094 Â 11% +25.4% 11402 Â 7% sched_debug.cpu#19.nr_switches
1548 Â 5% +15.6% 1791 Â 5% slabinfo.blkdev_requests.num_objs
331321 Â 1% -21.7% 259303 Â 0% cpuidle.C6-IVT.usage
2.335e+08 Â 1% +27.0% 2.965e+08 Â 12% cpuidle.C1-IVT.time
21863 Â 4% -26.5% 16059 Â 7% sched_debug.cpu#0.nr_load_updates
14153 Â 7% +13.7% 16095 Â 4% slabinfo.kmalloc-256.num_objs
16419 Â 5% -25.2% 12289 Â 8% sched_debug.cpu#0.sched_goidle
10169 Â 5% -13.8% 8767 Â 6% sched_debug.cfs_rq[0]:/.exec_clock
35366 Â 4% -23.9% 26910 Â 7% sched_debug.cpu#0.nr_switches
2160 Â 16% +39.6% 3015 Â 6% sched_debug.cpu#1.ttwu_local
9848 Â 2% +20.6% 11876 Â 5% slabinfo.kmalloc-512.num_objs
9721 Â 2% +20.8% 11741 Â 5% slabinfo.kmalloc-512.active_objs
5997 Â 11% -25.0% 4499 Â 13% sched_debug.cpu#3.ttwu_count
4801 Â 17% +26.5% 6075 Â 14% sched_debug.cpu#11.sched_goidle
116 Â 8% +40.3% 163 Â 33% sched_debug.cpu#33.ttwu_local
7180 Â 6% +12.0% 8038 Â 7% sched_debug.cpu#19.nr_load_updates
3654 Â 11% -15.4% 3092 Â 4% sched_debug.cpu#44.nr_load_updates
6077 Â 7% -19.2% 4913 Â 14% sched_debug.cpu#2.ttwu_count
3618 Â 6% -13.5% 3128 Â 1% sched_debug.cpu#35.nr_load_updates
8399 Â 2% +11.2% 9338 Â 5% sched_debug.cfs_rq[11]:/.tg_load_avg
7559 Â 2% +12.7% 8523 Â 5% sched_debug.cfs_rq[16]:/.tg_load_avg
8529 Â 1% +10.6% 9430 Â 5% sched_debug.cfs_rq[10]:/.tg_load_avg
3625 Â 3% -12.1% 3188 Â 2% sched_debug.cpu#32.nr_load_updates
2761 Â 3% +10.8% 3059 Â 5% numa-meminfo.node1.KernelStack
4672 Â 8% +15.7% 5406 Â 11% sched_debug.cpu#23.sched_goidle
3873 Â 5% -11.0% 3447 Â 3% sched_debug.cpu#28.nr_load_updates
8309 Â 3% +11.1% 9232 Â 5% sched_debug.cfs_rq[12]:/.tg_load_avg
1075 Â 4% -7.3% 996 Â 6% slabinfo.RAW.num_objs
1075 Â 4% -7.3% 996 Â 6% slabinfo.RAW.active_objs
10971 Â 2% -8.6% 10032 Â 7% sched_debug.cpu#2.nr_load_updates
8231 Â 5% +11.8% 9203 Â 5% sched_debug.cfs_rq[13]:/.tg_load_avg
8153 Â 5% +11.2% 9067 Â 5% sched_debug.cfs_rq[14]:/.tg_load_avg
9188 Â 5% +8.5% 9970 Â 6% sched_debug.cfs_rq[6]:/.tg_load_avg
52333 Â 2% +12.6% 58934 Â 0% softirqs.SCHED
7393 Â 2% +9.2% 8070 Â 3% sched_debug.cfs_rq[18]:/.tg_load_avg
50231 Â 6% +12.5% 56530 Â 4% numa-meminfo.node0.SUnreclaim
12557 Â 6% +12.5% 14131 Â 4% numa-vmstat.node0.nr_slab_unreclaimable
3613 Â 2% +13.0% 4082 Â 3% sched_debug.cpu#27.nr_load_updates
10044 Â 2% +7.6% 10811 Â 5% sched_debug.cfs_rq[1]:/.tg_load_avg
9345 Â 3% +8.1% 10101 Â 5% sched_debug.cfs_rq[5]:/.tg_load_avg
7420 Â 2% +9.0% 8088 Â 3% sched_debug.cfs_rq[17]:/.tg_load_avg
10101 Â 4% -14.8% 8605 Â 12% sched_debug.cpu#5.nr_load_updates
10031 Â 2% +7.8% 10810 Â 5% sched_debug.cfs_rq[0]:/.tg_load_avg
59796 Â 2% -10.7% 53396 Â 2% softirqs.RCU
7367 Â 3% +9.2% 8046 Â 3% sched_debug.cfs_rq[20]:/.tg_load_avg
7408 Â 2% +8.6% 8046 Â 3% sched_debug.cfs_rq[19]:/.tg_load_avg
7392 Â 2% +8.9% 8054 Â 3% sched_debug.cfs_rq[22]:/.tg_load_avg
7384 Â 3% +8.9% 8040 Â 3% sched_debug.cfs_rq[21]:/.tg_load_avg
34.14 Â 0% +683.5% 267.48 Â 0% iostat.sda.wrqm/s
1009 Â 0% +1255.7% 13682 Â 0% iostat.sda.avgrq-sz
257.55 Â 0% -92.6% 18.94 Â 0% iostat.sda.w/s
544 Â 0% +1268.9% 7460 Â 0% iostat.sda.w_await
544 Â 0% +1268.5% 7457 Â 0% iostat.sda.await
600 Â 0% -41.1% 353 Â 1% vmstat.system.in
131497 Â 0% -1.6% 129445 Â 0% vmstat.io.bo
131277 Â 0% -3.3% 126926 Â 0% iostat.sda.wkB/s

testbox/testcase/testparams: bay/dd-write/performance-1HDD-cfq-xfs-1dd

c2661b806092d8ea 34b48db66e08ca1c1bc07cf305
---------------- --------------------------
1:4 -25% :4 kmsg.e1000e#:#:#eth0:Link_Speed_was_downgraded_by_SmartSpeed
1 Â 0% -100.0% 0 Â 0% vmstat.procs.b
35966 Â 0% -68.2% 11441 Â 0% softirqs.BLOCK
298 Â 0% -98.7% 4 Â 43% ftrace.writeback_single_inode.sda.age
32052 Â 0% -19.7% 25738 Â 0% proc-vmstat.nr_dirty
128302 Â 0% -19.7% 102971 Â 0% meminfo.Dirty
1089 Â 8% -20.2% 869 Â 15% proc-vmstat.nr_vmscan_immediate_reclaim
108812 Â 0% +22.3% 133114 Â 0% meminfo.Writeback
27191 Â 0% +22.3% 33261 Â 0% proc-vmstat.nr_writeback
88 Â 6% -24.2% 67 Â 5% sched_debug.cpu#1.cpu_load[0]
4.23 Â 4% -34.7% 2.77 Â 22% perf-profile.cpu-cycles.do_writepages.__writeback_single_inode.writeback_sb_inodes.__writeback_inodes_wb.wb_writeback
4.24 Â 4% -34.4% 2.78 Â 22% perf-profile.cpu-cycles.__writeback_inodes_wb.wb_writeback.bdi_writeback_workfn.process_one_work.worker_thread
4.24 Â 4% -34.4% 2.78 Â 22% perf-profile.cpu-cycles.__writeback_single_inode.writeback_sb_inodes.__writeback_inodes_wb.wb_writeback.bdi_writeback_workfn
4.24 Â 4% -34.4% 2.78 Â 22% perf-profile.cpu-cycles.writeback_sb_inodes.__writeback_inodes_wb.wb_writeback.bdi_writeback_workfn.process_one_work
4.24 Â 4% -31.8% 2.90 Â 20% perf-profile.cpu-cycles.bdi_writeback_workfn.process_one_work.worker_thread.kthread.ret_from_fork
0.54 Â 31% +83.7% 0.99 Â 22% perf-profile.cpu-cycles.copy_from_user_atomic_iovec.iov_iter_copy_from_user_atomic.generic_perform_write.xfs_file_buffered_aio_write.xfs_file_write_iter
1.06 Â 9% -46.9% 0.56 Â 20% perf-profile.cpu-cycles.free_hot_cold_page.free_hot_cold_page_list.shrink_page_list.shrink_inactive_list.shrink_lruvec
4.24 Â 4% -34.1% 2.80 Â 21% perf-profile.cpu-cycles.wb_writeback.bdi_writeback_workfn.process_one_work.worker_thread.kthread
1.12 Â 13% -45.8% 0.61 Â 16% perf-profile.cpu-cycles.free_hot_cold_page_list.shrink_page_list.shrink_inactive_list.shrink_lruvec.shrink_zone
2.11 Â 12% -52.4% 1.00 Â 33% perf-profile.cpu-cycles.xfs_start_page_writeback.xfs_convert_page.xfs_cluster_write.xfs_vm_writepage.__writepage
254817 Â 8% +80.7% 460518 Â 5% sched_debug.cpu#1.sched_goidle
529031 Â 7% +82.6% 966208 Â 6% sched_debug.cpu#1.sched_count
528841 Â 7% +82.6% 965915 Â 6% sched_debug.cpu#1.nr_switches
466 Â 20% +51.6% 707 Â 16% sched_debug.cfs_rq[2]:/.blocked_load_avg
212 Â 11% +55.4% 329 Â 11% slabinfo.xfs_buf.num_objs
0.93 Â 19% -36.1% 0.59 Â 31% perf-profile.cpu-cycles.__run_hrtimer.hrtimer_interrupt.local_apic_timer_interrupt.smp_apic_timer_interrupt.apic_timer_interrupt
1.24 Â 15% -48.6% 0.64 Â 31% perf-profile.cpu-cycles.__test_set_page_writeback.xfs_start_page_writeback.xfs_convert_page.xfs_cluster_write.xfs_vm_writepage
0.70 Â 18% +43.4% 1.00 Â 17% perf-profile.cpu-cycles.__set_page_dirty.mark_buffer_dirty.__block_commit_write.block_write_end.generic_write_end
212 Â 11% +50.2% 318 Â 12% slabinfo.xfs_buf.active_objs
27192 Â 0% +18.8% 32298 Â 5% ftrace.global_dirty_state.writeback
548 Â 18% +40.6% 771 Â 14% sched_debug.cfs_rq[2]:/.tg_load_contrib
4.23 Â 4% -37.4% 2.65 Â 22% perf-profile.cpu-cycles.write_cache_pages.generic_writepages.xfs_vm_writepages.do_writepages.__writeback_single_inode
4.22 Â 4% -37.3% 2.65 Â 22% perf-profile.cpu-cycles.xfs_vm_writepage.__writepage.write_cache_pages.generic_writepages.xfs_vm_writepages
4.22 Â 4% -37.3% 2.65 Â 22% perf-profile.cpu-cycles.__writepage.write_cache_pages.generic_writepages.xfs_vm_writepages.do_writepages
3.27 Â 4% -41.9% 1.90 Â 29% perf-profile.cpu-cycles.xfs_cluster_write.xfs_vm_writepage.__writepage.write_cache_pages.generic_writepages
802 Â 10% -27.5% 581 Â 12% sched_debug.cfs_rq[1]:/.tg_load_contrib
2.85 Â 4% -45.6% 1.55 Â 39% perf-profile.cpu-cycles.xfs_convert_page.isra.11.xfs_cluster_write.xfs_vm_writepage.__writepage.write_cache_pages
4.23 Â 4% -34.7% 2.77 Â 22% perf-profile.cpu-cycles.generic_writepages.xfs_vm_writepages.do_writepages.__writeback_single_inode.writeback_sb_inodes
4.23 Â 4% -34.7% 2.77 Â 22% perf-profile.cpu-cycles.xfs_vm_writepages.do_writepages.__writeback_single_inode.writeback_sb_inodes.__writeback_inodes_wb
262384 Â 5% +62.0% 425142 Â 29% sched_debug.cpu#1.ttwu_count
33514 Â 4% -22.8% 25878 Â 15% sched_debug.cfs_rq[0]:/.min_vruntime
1.82 Â 4% +34.2% 2.44 Â 9% perf-profile.cpu-cycles.rw_verify_area.vfs_read.sys_read.system_call_fastpath.read
32144 Â 0% -17.4% 26555 Â 6% ftrace.global_dirty_state.dirty
720 Â 12% -29.8% 505 Â 14% sched_debug.cfs_rq[1]:/.blocked_load_avg
213 Â 9% +24.1% 265 Â 15% sched_debug.cfs_rq[3]:/.load
78 Â 12% -22.3% 61 Â 19% sched_debug.cfs_rq[2]:/.runnable_load_avg
1.24 Â 9% +35.9% 1.69 Â 6% perf-profile.cpu-cycles.security_file_permission.rw_verify_area.vfs_read.sys_read.system_call_fastpath
307 Â 6% +22.7% 377 Â 11% slabinfo.signal_cache.num_objs
307 Â 6% +22.7% 377 Â 11% slabinfo.signal_cache.active_objs
1389 Â 2% +34.0% 1862 Â 0% uptime.idle
562 Â 9% -30.5% 390 Â 2% slabinfo.blkdev_requests.active_objs
580 Â 9% -30.0% 406 Â 1% slabinfo.blkdev_requests.num_objs
29983 Â 5% -22.8% 23137 Â 14% sched_debug.cfs_rq[0]:/.exec_clock
1717 Â 0% -12.5% 1503 Â 2% slabinfo.kmalloc-128.active_objs
13.79 Â 6% -17.1% 11.44 Â 2% perf-profile.cpu-cycles.ret_from_fork
13.79 Â 6% -17.1% 11.44 Â 2% perf-profile.cpu-cycles.kthread.ret_from_fork
1717 Â 0% -11.1% 1527 Â 3% slabinfo.kmalloc-128.num_objs
735 Â 2% -17.1% 609 Â 3% slabinfo.kmalloc-512.num_objs
700 Â 3% -14.8% 597 Â 3% slabinfo.kmalloc-512.active_objs
3.96 Â 10% +24.7% 4.94 Â 5% perf-profile.cpu-cycles.iov_iter_copy_from_user_atomic.generic_perform_write.xfs_file_buffered_aio_write.xfs_file_write_iter.new_sync_write
10.48 Â 4% +18.1% 12.38 Â 7% perf-profile.cpu-cycles.vfs_read.sys_read.system_call_fastpath.read
12981 Â 2% +16.5% 15123 Â 4% meminfo.AnonHugePages
11.69 Â 6% +15.8% 13.54 Â 6% perf-profile.cpu-cycles.sys_read.system_call_fastpath.read
11.96 Â 6% +14.1% 13.66 Â 6% perf-profile.cpu-cycles.system_call_fastpath.read
0.04 Â 2% +2.6e+05% 114.04 Â 1% iostat.sda.wrqm/s
1006 Â 0% +467.6% 5715 Â 0% iostat.sda.avgrq-sz
204.95 Â 0% -79.7% 41.69 Â 1% iostat.sda.w/s
693 Â 0% +56.8% 1087 Â 2% iostat.sda.w_await
693 Â 0% +56.8% 1087 Â 2% iostat.sda.await
142.50 Â 0% -68.7% 44.57 Â 2% iostat.sda.avgqu-sz
4516 Â 0% +44.4% 6521 Â 3% vmstat.system.cs
6657 Â 1% +11.5% 7420 Â 0% vmstat.system.in
2826521 Â 0% +42.8% 4036905 Â 3% perf-stat.context-switches
1.06e+09 Â 3% +14.6% 1.214e+09 Â 1% perf-stat.branch-misses
1.058e+09 Â 2% +11.3% 1.178e+09 Â 0% perf-stat.branch-load-misses
4.62e+09 Â 1% +9.6% 5.063e+09 Â 0% perf-stat.L1-icache-load-misses
61232 Â 2% +6.7% 65332 Â 1% perf-stat.cpu-migrations
5.616e+11 Â 1% +3.7% 5.824e+11 Â 1% perf-stat.L1-icache-loads
6.938e+11 Â 0% +3.7% 7.193e+11 Â 1% perf-stat.ref-cycles
7.697e+10 Â 1% +4.1% 8.016e+10 Â 1% perf-stat.bus-cycles
1.127e+10 Â 1% +5.9% 1.194e+10 Â 0% perf-stat.cache-references
6150016 Â 1% +4.9% 6452759 Â 1% perf-stat.iTLB-load-misses
5.979e+11 Â 1% +3.7% 6.198e+11 Â 0% perf-stat.iTLB-loads
1.119e+08 Â 0% +2.0% 1.141e+08 Â 1% perf-stat.LLC-store-misses
2.125e+11 Â 0% +1.6% 2.16e+11 Â 0% perf-stat.dTLB-loads
1.114e+11 Â 1% +3.2% 1.15e+11 Â 1% perf-stat.branch-instructions
1.363e+11 Â 0% +1.4% 1.382e+11 Â 1% perf-stat.L1-dcache-stores

testbox/testcase/testparams: snb-drag/iozone/performance-2HDD-btrfs-cfq

c2661b806092d8ea 34b48db66e08ca1c1bc07cf305
---------------- --------------------------
3721949 Â 10% -75.8% 900696 Â 2% iozone.524288KB_16384reclen.random_write
4415916 Â 18% -80.9% 844948 Â 48% iozone.524288KB_64reclen.fwrite
51312 Â 1% +98.3% 101737 Â 3% iozone.time.voluntary_context_switches
3140204 Â 36% -68.9% 976488 Â 1% iozone.524288KB_1024reclen.fwrite
5168927 Â 30% +72.6% 8919077 Â 12% iozone.2048KB_2048reclen.bkwd_read
12429800 Â 22% -57.5% 5283570 Â 0% iozone.64KB_16reclen.read
9214432 Â 31% +100.4% 18467538 Â 13% iozone.64KB_16reclen.reread
3784507 Â 36% +54.6% 5852297 Â 9% iozone.64KB_32reclen.frewrite
5842770 Â 10% +59.1% 9293676 Â 25% iozone.256KB_16reclen.read
4096260 Â 22% +26.8% 5194967 Â 25% iozone.8192KB_2048reclen.record_rewrite
2143392 Â 10% +71.8% 3682593 Â 7% iozone.64KB_32reclen.rewrite
3926749 Â 10% +65.7% 6504827 Â 1% iozone.8192KB_2048reclen.bkwd_read
3245712 Â 28% +41.1% 4580273 Â 0% iozone.8192KB_2048reclen.fwrite
5516996 Â 2% -42.0% 3202464 Â 0% iozone.131072KB_4096reclen.stride_read
11626146 Â 3% -27.5% 8425044 Â 8% iozone.256KB_32reclen.read
6552054 Â 26% +37.2% 8987238 Â 3% iozone.524288KB_2048reclen.random_read
8126973 Â 22% +35.7% 11027371 Â 5% iozone.512KB_128reclen.bkwd_read
9186536 Â 1% -40.2% 5497416 Â 3% iozone.262144KB_2048reclen.reread
6785922 Â 15% +46.0% 9908396 Â 1% iozone.4096KB_256reclen.freread
5878217 Â 11% +32.1% 7767855 Â 17% iozone.128KB_8reclen.bkwd_read
2908035 Â 11% +23.8% 3599941 Â 16% iozone.65536KB_2048reclen.write
7045416 Â 28% +23.9% 8727336 Â 14% iozone.128KB_64reclen.fread
4116881 Â 7% -32.5% 2777202 Â 0% iozone.131072KB_4096reclen.record_rewrite
9958948 Â 11% +22.6% 12204733 Â 16% iozone.256KB_64reclen.freread
5295317 Â 0% -38.0% 3285585 Â 5% iozone.65536KB_16384reclen.random_read
5154774 Â 2% -34.7% 3366812 Â 2% iozone.32768KB_16384reclen.reread
3350211 Â 1% -35.5% 2161492 Â 2% iozone.131072KB_4096reclen.fwrite
7058730 Â 23% +23.5% 8720773 Â 7% iozone.4096KB_512reclen.freread
9341609 Â 0% -34.1% 6154779 Â 0% iozone.8192KB_16reclen.random_read
4078539 Â 21% +14.6% 4674272 Â 15% iozone.64KB_64reclen.fwrite
9496835 Â 18% +16.4% 11050866 Â 15% iozone.512KB_16reclen.reread
6835690 Â 7% +46.9% 10043233 Â 6% iozone.256KB_16reclen.fread
5966535 Â 7% +32.9% 7928399 Â 15% iozone.128KB_16reclen.stride_read
6896514 Â 19% +8.5% 7482559 Â 18% iozone.8192KB_64reclen.read
5170408 Â 19% +27.0% 6564086 Â 15% iozone.128KB_16reclen.bkwd_read
6841685 Â 17% +32.0% 9027640 Â 5% iozone.4096KB_128reclen.stride_read
7736851 Â 14% -26.8% 5665375 Â 2% iozone.128KB_4reclen.fread
7263403 Â 19% +20.2% 8727084 Â 15% iozone.512KB_16reclen.bkwd_read
1482761 Â 14% +20.3% 1784297 Â 12% iozone.64KB_4reclen.rewrite
2838836 Â 5% +25.0% 3548955 Â 14% iozone.8192KB_2048reclen.write
4452040 Â 1% -33.4% 2964529 Â 3% iozone.262144KB_4096reclen.record_rewrite
8536046 Â 1% -17.6% 7029910 Â 0% iozone.131072KB_2048reclen.freread
11235457 Â 10% -46.6% 5999172 Â 18% iozone.64KB_8reclen.freread
3585860 Â 0% -34.2% 2358593 Â 0% iozone.131072KB_2048reclen.fwrite
9038144 Â 0% -31.5% 6194380 Â 0% iozone.262144KB_64reclen.reread
7062785 Â 19% +27.2% 8982751 Â 0% iozone.16384KB_1024reclen.read
3950846 Â 8% -26.8% 2893048 Â 0% iozone.131072KB_2048reclen.write
9696357 Â 23% +36.1% 13196984 Â 0% iozone.4096KB_64reclen.random_read
4977030 Â 11% -25.7% 3700119 Â 0% iozone.262144KB_64reclen.random_write
3992512 Â 20% +31.1% 5233138 Â 0% iozone.131072KB_16384reclen.reread
6816595 Â 17% +25.3% 8538164 Â 0% iozone.8192KB_512reclen.freread
2915623 Â 19% +10.5% 3221728 Â 16% iozone.16384KB_4096reclen.write
3998465 Â 6% -29.3% 2825277 Â 0% iozone.262144KB_8192reclen.random_write
5300007 Â 6% -35.0% 3444156 Â 4% iozone.131072KB_2048reclen.random_write
5816163 Â 2% +41.6% 8237185 Â 0% iozone.8192KB_1024reclen.bkwd_read
7152954 Â 0% -29.7% 5028185 Â 1% iozone.8192KB_4reclen.fread
6734662 Â 16% +24.6% 8394385 Â 1% iozone.4096KB_256reclen.random_write
3713447 Â 4% +39.5% 5179264 Â 0% iozone.524288KB_8192reclen.freread
2921618 Â 13% -21.7% 2288382 Â 0% iozone.64KB_8reclen.fwrite
4720964 Â 6% +22.1% 5764336 Â 11% iozone.128KB_128reclen.record_rewrite
8197712 Â 14% -27.5% 5942111 Â 4% iozone.262144KB_2048reclen.random_read
3250503 Â 17% +29.7% 4215130 Â 0% iozone.8192KB_8192reclen.frewrite
3539923 Â 9% -22.0% 2762574 Â 5% iozone.256KB_16reclen.fwrite
8277227 Â 1% -27.2% 6029824 Â 0% iozone.8192KB_16reclen.reread
5988294 Â 2% +19.7% 7168885 Â 14% iozone.8192KB_32reclen.fread
5140772 Â 0% -26.8% 3761046 Â 0% iozone.524288KB_16384reclen.reread
5352979 Â 12% -29.3% 3785540 Â 7% iozone.512KB_64reclen.rewrite
7493022 Â 18% +29.3% 9689073 Â 10% iozone.4096KB_64reclen.reread
6782461 Â 12% +23.9% 8403419 Â 1% iozone.256KB_32reclen.fread
4272580 Â 2% -27.9% 3080979 Â 0% iozone.262144KB_2048reclen.write
4182353 Â 12% +26.3% 5281188 Â 0% iozone.65536KB_8192reclen.read
7724548 Â 0% -2.5% 7529971 Â 1% iozone.4096KB_4096reclen.reread
9585735 Â 9% +25.5% 12034330 Â 3% iozone.2048KB_64reclen.reread
4328543 Â 21% -30.2% 3020814 Â 0% iozone.131072KB_8192reclen.stride_read
5474696 Â 34% +45.3% 7955774 Â 1% iozone.8192KB_2048reclen.freread
6145365 Â 3% +18.1% 7258564 Â 14% iozone.8192KB_64reclen.stride_read
8875731 Â 10% +39.5% 12377375 Â 2% iozone.2048KB_512reclen.reread
7740075 Â 3% +25.8% 9739699 Â 6% iozone.2048KB_32reclen.read
6901705 Â 20% +26.7% 8744111 Â 4% iozone.1024KB_16reclen.fread
8359584 Â 1% +27.6% 10668396 Â 3% iozone.256KB_64reclen.stride_read
8450512 Â 5% +31.3% 11091721 Â 0% iozone.256KB_256reclen.stride_read
4355136 Â 2% +25.6% 5468706 Â 5% iozone.512KB_32reclen.frewrite
5208724 Â 1% -32.6% 3508395 Â 11% iozone.32768KB_16384reclen.random_read
3209577 Â 13% -19.0% 2598777 Â 0% iozone.32768KB_16384reclen.write
8195860 Â 2% -26.3% 6041688 Â 0% iozone.8192KB_16reclen.read
5404751 Â 3% +30.9% 7075305 Â 13% iozone.128KB_128reclen.random_write
9151836 Â 1% -25.5% 6820128 Â 0% iozone.262144KB_1024reclen.read
5093159 Â 3% -30.9% 3516955 Â 11% iozone.65536KB_16384reclen.stride_read
7331754 Â 13% +17.9% 8641522 Â 2% iozone.32768KB_256reclen.freread
8045454 Â 2% -24.6% 6066614 Â 0% iozone.8192KB_16reclen.freread
4727302 Â 25% +35.8% 6417749 Â 10% iozone.64KB_8reclen.bkwd_read
3122931 Â 8% +25.8% 3929301 Â 0% iozone.524288KB_64reclen.write
3809641 Â 13% +23.2% 4694921 Â 9% iozone.65536KB_8192reclen.fread
10294877 Â 22% +34.1% 13809422 Â 2% iozone.256KB_32reclen.random_read
3875132 Â 3% -25.7% 2878020 Â 0% iozone.262144KB_8192reclen.record_rewrite
3521943 Â 0% +19.8% 4218470 Â 9% iozone.16384KB_256reclen.write
3263246 Â 11% -20.5% 2592835 Â 3% iozone.131072KB_8192reclen.record_rewrite
9118649 Â 5% +18.3% 10790863 Â 10% iozone.512KB_64reclen.reread
4387342 Â 1% +4.1% 4566992 Â 0% iozone.32768KB_4096reclen.record_rewrite
7716943 Â 6% +16.4% 8980781 Â 6% iozone.1024KB_64reclen.bkwd_read
8751240 Â 0% -11.6% 7738113 Â 0% iozone.131072KB_1024reclen.reread
5503178 Â 1% -29.4% 3885602 Â 10% iozone.131072KB_4096reclen.freread
8867546 Â 4% +15.7% 10257049 Â 8% iozone.1024KB_256reclen.bkwd_read
6118367 Â 6% +12.5% 6880962 Â 11% iozone.8192KB_128reclen.bkwd_read
7474083 Â 10% +19.8% 8950225 Â 0% iozone.65536KB_2048reclen.freread
1902231 Â 11% +14.8% 2183057 Â 5% iozone.64KB_4reclen.record_rewrite
6412619 Â 6% +12.4% 7206535 Â 10% iozone.8192KB_32reclen.freread
2383411 Â 6% +20.7% 2877496 Â 9% iozone.8192KB_8192reclen.write
6474625 Â 4% -31.5% 4437342 Â 15% iozone.256KB_64reclen.record_rewrite
7551263 Â 12% +17.6% 8877760 Â 0% iozone.32768KB_128reclen.freread
7258589 Â 6% +11.1% 8061492 Â 10% iozone.1024KB_128reclen.random_write
2318350 Â 3% +20.7% 2797222 Â 4% iozone.128KB_32reclen.write
9532159 Â 6% -28.4% 6824469 Â 5% iozone.2048KB_128reclen.bkwd_read
9810530 Â 9% -23.8% 7480347 Â 7% iozone.256KB_4reclen.freread
7178801 Â 6% +26.8% 9104334 Â 1% iozone.2048KB_512reclen.fread
4073068 Â 5% +27.3% 5183826 Â 1% iozone.8192KB_512reclen.fwrite
5217651 Â 0% -20.9% 4129184 Â 4% iozone.131072KB_1024reclen.random_write
3568302 Â 10% -27.8% 2577833 Â 2% iozone.131072KB_8192reclen.random_write
4348780 Â 11% +10.8% 4818282 Â 10% iozone.512KB_32reclen.fwrite
9316483 Â 6% -28.2% 6687738 Â 4% iozone.1024KB_4reclen.read
6755316 Â 14% +19.5% 8070595 Â 3% iozone.4096KB_64reclen.random_write
4996612 Â 2% -20.5% 3974292 Â 1% iozone.524288KB_8192reclen.reread
4363175 Â 6% +14.6% 4999657 Â 6% iozone.256KB_128reclen.fwrite
4250330 Â 5% +7.5% 4567501 Â 1% iozone.65536KB_4096reclen.record_rewrite
4856767 Â 10% -15.9% 4085386 Â 1% iozone.65536KB_8192reclen.reread
3894694 Â 10% +15.3% 4489754 Â 0% iozone.65536KB_256reclen.write
4489243 Â 4% +12.5% 5049573 Â 7% iozone.1024KB_32reclen.frewrite
4854507 Â 6% -13.4% 4206416 Â 2% iozone.262144KB_8192reclen.reread
10392729 Â 6% -30.2% 7253300 Â 17% iozone.256KB_16reclen.stride_read
8034794 Â 6% -23.0% 6187632 Â 9% iozone.131072KB_2048reclen.reread
3663595 Â 24% +25.2% 4586005 Â 6% iozone.64KB_32reclen.random_write
3426596 Â 2% -23.6% 2617824 Â 0% iozone.32768KB_8192reclen.write
10121807 Â 11% -21.5% 7949244 Â 2% iozone.512KB_64reclen.freread
8849875 Â 2% +4.6% 9254086 Â 0% iozone.65536KB_128reclen.random_read
6922909 Â 14% +27.7% 8843304 Â 1% iozone.65536KB_256reclen.bkwd_read
4762555 Â 13% -23.2% 3656779 Â 5% iozone.128KB_32reclen.record_rewrite
7493376 Â 12% +14.0% 8542375 Â 4% iozone.4096KB_16reclen.stride_read
7404571 Â 11% +16.0% 8587206 Â 0% iozone.16384KB_8reclen.reread
2252570 Â 1% +17.3% 2643162 Â 4% iozone.512KB_4reclen.write
8221058 Â 12% -28.4% 5886115 Â 11% iozone.256KB_32reclen.bkwd_read
9117257 Â 18% +23.5% 11256055 Â 1% iozone.512KB_8reclen.freread
7731661 Â 2% +15.0% 8894151 Â 5% iozone.2048KB_16reclen.stride_read
578942 Â 10% +13.3% 656090 Â 8% iozone.64KB_32reclen
13443230 Â 7% -14.5% 11497132 Â 1% iozone.512KB_32reclen.random_read
472463 Â 3% -19.2% 381698 Â 0% iozone.131072KB_4096reclen
8025688 Â 13% +18.2% 9485232 Â 0% iozone.1024KB_16reclen.bkwd_read
3883697 Â 6% +19.5% 4640601 Â 1% iozone.16384KB_64reclen.write
8604036 Â 10% +22.9% 10573638 Â 3% iozone.512KB_256reclen.freread
687415 Â 5% -18.7% 558826 Â 3% iozone.131072KB_2048reclen
8888491 Â 7% +14.8% 10202126 Â 3% iozone.2048KB_32reclen.stride_read
7718415 Â 9% +13.3% 8747529 Â 0% iozone.131072KB_64reclen.bkwd_read
8188173 Â 6% +10.9% 9083352 Â 6% iozone.512KB_512reclen.stride_read
5822892 Â 9% -13.4% 5044342 Â 1% iozone.512KB_128reclen.frewrite
7510973 Â 3% +22.8% 9225029 Â 0% iozone.524288KB_512reclen.stride_read
9732731 Â 12% +25.1% 12175311 Â 1% iozone.1024KB_128reclen.reread
3910528 Â 8% +13.4% 4433939 Â 1% iozone.1024KB_128reclen.write
5229285 Â 0% +17.5% 6143606 Â 2% iozone.2048KB_2048reclen.fwrite
3740977 Â 3% +7.3% 4013075 Â 8% iozone.65536KB_512reclen.write
7973715 Â 5% +15.9% 9240823 Â 3% iozone.2048KB_64reclen.read
5347544 Â 4% -12.6% 4674344 Â 6% iozone.512KB_64reclen.fwrite
9148256 Â 9% +10.0% 10066331 Â 5% iozone.2048KB_256reclen.freread
7532427 Â 2% +20.0% 9038408 Â 0% iozone.524288KB_64reclen.random_read
9116693 Â 0% -16.3% 7627555 Â 0% iozone.262144KB_1024reclen.bkwd_read
9293134 Â 18% +19.5% 11103803 Â 7% iozone.2048KB_1024reclen.read
3610496 Â 0% +2.1% 3684779 Â 0% iozone.262144KB_2048reclen.fwrite
2841895 Â 6% +13.6% 3228081 Â 0% iozone.8192KB_4096reclen.fwrite
3318265 Â 5% +8.9% 3612894 Â 4% iozone.512KB_8reclen.frewrite
7649887 Â 5% +11.8% 8552670 Â 5% iozone.2048KB_256reclen.fread
4824041 Â 9% +13.5% 5477321 Â 3% iozone.2048KB_1024reclen.fwrite
2321590 Â 2% +15.0% 2670161 Â 2% iozone.256KB_4reclen.frewrite
9060990 Â 1% -15.5% 7655972 Â 0% iozone.524288KB_512reclen.random_read
4358431 Â 12% -18.7% 3543052 Â 4% iozone.131072KB_8192reclen.freread
4348859 Â 4% +10.8% 4817434 Â 4% iozone.4096KB_16reclen.fwrite
2489477 Â 7% +10.2% 2743734 Â 1% iozone.4096KB_4reclen.rewrite
5103733 Â 0% +3.4% 5279726 Â 0% iozone.262144KB_8192reclen.stride_read
3046196 Â 10% -17.9% 2500831 Â 1% iozone.131072KB_16384reclen.record_rewrite
5121586 Â 2% -16.7% 4265243 Â 1% iozone.256KB_16reclen.random_write
4094339 Â 5% -10.8% 3653574 Â 0% iozone.131072KB_1024reclen.write
12251829 Â 7% +11.4% 13652899 Â 0% iozone.512KB_512reclen.random_read
7690315 Â 7% +15.2% 8860546 Â 0% iozone.65536KB_256reclen.freread
3898899 Â 6% +11.4% 4341836 Â 0% iozone.16384KB_16reclen.random_write
8052112 Â 4% +12.3% 9041701 Â 4% iozone.2048KB_8reclen.read
5168943 Â 6% -15.5% 4367526 Â 0% iozone.2048KB_128reclen.fwrite
3728684 Â 1% +13.5% 4233448 Â 0% iozone.512KB_128reclen.write
10231887 Â 14% -18.5% 8334367 Â 2% iozone.512KB_4reclen.reread
4976350 Â 6% -16.7% 4147433 Â 4% iozone.512KB_16reclen.random_write
5746415 Â 12% -30.8% 3976333 Â 19% iozone.256KB_64reclen.frewrite
7090255 Â 25% +26.7% 8986290 Â 0% iozone.32768KB_64reclen.fread
9078196 Â 1% -14.4% 7769083 Â 1% iozone.262144KB_1024reclen.reread
718806 Â 4% +13.0% 812074 Â 0% iozone.64KB_64reclen
3747212 Â 9% -19.6% 3014476 Â 7% iozone.256KB_16reclen.frewrite
4284349 Â 0% -15.1% 3636384 Â 12% iozone.131072KB_1024reclen.fwrite
3432219 Â 5% +8.2% 3714618 Â 6% iozone.8192KB_4096reclen.freread
4877605 Â 7% +11.2% 5423051 Â 3% iozone.2048KB_128reclen.rewrite
4039676 Â 9% +13.9% 4601332 Â 0% iozone.65536KB_128reclen.write
2995131 Â 7% +14.2% 3420783 Â 5% iozone.256KB_8reclen.fwrite
8335424 Â 5% +11.0% 9254346 Â 0% iozone.262144KB_1024reclen.fread
4847523 Â 0% -12.9% 4221362 Â 0% iozone.131072KB_512reclen.fwrite
10976125 Â 6% +15.2% 12646489 Â 2% iozone.1024KB_128reclen.stride_read
10787523 Â 6% +5.6% 11391254 Â 4% iozone.1024KB_64reclen.stride_read
8384570 Â 6% +8.8% 9124939 Â 4% iozone.1024KB_1024reclen.fread
4668456 Â 3% +10.0% 5137186 Â 1% iozone.1024KB_256reclen.rewrite
3077664 Â 11% +15.1% 3541009 Â 5% iozone.512KB_8reclen.rewrite
5041323 Â 3% +8.2% 5452436 Â 4% iozone.2048KB_1024reclen.rewrite
14889499 Â 4% -31.4% 10212181 Â 25% iozone.128KB_32reclen.random_read
9904025 Â 5% -19.4% 7984004 Â 6% iozone.2048KB_128reclen.read
5050003 Â 6% +16.8% 5896199 Â 0% iozone.32768KB_1024reclen.random_write
3624991 Â 5% +4.0% 3770555 Â 6% iozone.1024KB_8reclen.fwrite
7916217 Â 18% +15.2% 9116069 Â 6% iozone.4096KB_128reclen.reread
6698440 Â 2% -14.3% 5741172 Â 3% iozone.1024KB_1024reclen.fwrite
8067814 Â 5% -18.4% 6580711 Â 4% iozone.2048KB_8reclen.bkwd_read
8789340 Â 0% -7.7% 8109325 Â 5% iozone.131072KB_128reclen.reread
4839847 Â 4% -17.2% 4006617 Â 3% iozone.512KB_512reclen.rewrite
9400749 Â 4% +8.4% 10192299 Â 0% iozone.2048KB_4reclen.random_read
4455272 Â 2% -17.5% 3676614 Â 5% iozone.1024KB_16reclen.fwrite
3114613 Â 3% +7.1% 3334851 Â 5% iozone.1024KB_8reclen.write
4980243 Â 8% +9.2% 5438915 Â 2% iozone.8192KB_128reclen.fwrite
3785353 Â 7% +8.0% 4090008 Â 2% iozone.1024KB_32reclen.write
8 Â 0% +12.5% 9 Â 0% iozone.time.percent_of_cpu_this_job_got
620886 Â 3% +8.8% 675294 Â 1% iozone.524288KB_2048reclen
3413236 Â 5% +5.0% 3582992 Â 5% iozone.1024KB_8reclen.rewrite
618456 Â 4% +4.4% 645493 Â 4% iozone.8192KB_32reclen
8315952 Â 4% +7.5% 8943417 Â 1% iozone.65536KB_256reclen.reread
7913618 Â 6% +11.8% 8845045 Â 0% iozone.16384KB_128reclen.random_read
4233723 Â 3% +5.6% 4469238 Â 4% iozone.4096KB_16reclen.rewrite
7895734 Â 4% -18.7% 6416209 Â 13% iozone.4096KB_16reclen.bkwd_read
4481824 Â 2% +19.5% 5355949 Â 0% iozone.8192KB_64reclen.fwrite
8631125 Â 5% +7.4% 9265669 Â 0% iozone.65536KB_2048reclen.random_read
3004260 Â 19% +15.7% 3477316 Â 5% iozone.128KB_128reclen.write
5138964 Â 8% +15.2% 5918377 Â 0% iozone.4096KB_64reclen.fwrite
8558023 Â 5% +7.5% 9203339 Â 3% iozone.256KB_4reclen.reread
2286884 Â 2% +8.0% 2470446 Â 3% iozone.64KB_16reclen.fwrite
3932842 Â 3% +8.5% 4266645 Â 1% iozone.1024KB_16reclen.rewrite
4558245 Â 0% -10.3% 4089833 Â 0% iozone.8192KB_16reclen.random_write
4386732 Â 0% -14.5% 3749266 Â 0% iozone.32768KB_512reclen.write
7341150 Â 4% +6.4% 7813536 Â 1% iozone.16384KB_8reclen.random_read
8376231 Â 3% +9.0% 9126687 Â 1% iozone.2048KB_512reclen.read
8032190 Â 3% +11.3% 8938556 Â 0% iozone.65536KB_256reclen.read
10922099 Â 24% +30.0% 14200794 Â 0% iozone.128KB_128reclen.read
5344071 Â 1% +7.2% 5728578 Â 3% iozone.2048KB_32reclen.fwrite
3539347 Â 4% +6.6% 3774150 Â 1% iozone.65536KB_2048reclen.fwrite
2805718 Â 4% -18.9% 2274675 Â 12% iozone.4096KB_4reclen.record_rewrite
4812062 Â 7% +9.2% 5256356 Â 0% iozone.32768KB_8192reclen.reread
393057 Â 4% +6.2% 417250 Â 1% iozone.524288KB_8192reclen
7219552 Â 5% +7.9% 7786633 Â 1% iozone.2048KB_1024reclen.record_rewrite
5259188 Â 1% -17.1% 4358000 Â 9% iozone.262144KB_16384reclen.reread
8092792 Â 6% +9.1% 8829873 Â 0% iozone.16384KB_2048reclen.read
718746 Â 2% +6.6% 765960 Â 1% iozone.2048KB_16reclen
9683795 Â 3% -29.0% 6879528 Â 28% iozone.4096KB_2048reclen.stride_read
4110070 Â 4% +6.3% 4368383 Â 1% iozone.1024KB_8reclen.record_rewrite
8039446 Â 5% +9.3% 8785884 Â 0% iozone.16384KB_256reclen.reread
8484403 Â 3% +4.7% 8883833 Â 0% iozone.32768KB_256reclen.random_read
12636319 Â 6% -16.0% 10611712 Â 7% iozone.1024KB_1024reclen.read
6763506 Â 14% +19.4% 8077808 Â 0% iozone.4096KB_256reclen.fread
7476510 Â 1% +6.5% 7962242 Â 3% iozone.4096KB_512reclen.record_rewrite
749887 Â 4% +7.1% 803484 Â 0% iozone.4096KB_256reclen
8207035 Â 2% -12.5% 7178405 Â 9% iozone.2048KB_128reclen.record_rewrite
4138686 Â 9% +11.8% 4625728 Â 2% iozone.256KB_64reclen.rewrite
2571399 Â 1% -9.5% 2326457 Â 1% iozone.2048KB_4reclen.frewrite
7552793 Â 2% +5.8% 7989546 Â 2% iozone.65536KB_2048reclen.record_rewrite
8295281 Â 1% +5.8% 8779713 Â 3% iozone.8192KB_128reclen.read
5597466 Â 1% -15.1% 4750831 Â 8% iozone.262144KB_4096reclen.reread
3280285 Â 0% +1.8% 3337806 Â 0% iozone.262144KB_8192reclen.fwrite
2576207 Â 3% +5.2% 2711076 Â 3% iozone.1024KB_4reclen.write
678845 Â 3% +3.9% 705564 Â 3% iozone.524288KB_256reclen
12627771 Â 2% -10.7% 11275314 Â 4% iozone.2048KB_2048reclen.random_read
3677955 Â 3% +4.6% 3848068 Â 1% iozone.16384KB_8reclen.rewrite
722786 Â 1% -7.9% 666043 Â 0% iozone.131072KB_1024reclen
7960527 Â 14% +17.3% 9340298 Â 0% iozone.65536KB_128reclen.reread
3502223 Â 19% +19.0% 4167876 Â 1% iozone.16384KB_4096reclen.rewrite
5551577 Â 1% -14.1% 4769927 Â 0% iozone.131072KB_256reclen.random_write
8696931 Â 0% -11.2% 7724092 Â 3% iozone.131072KB_128reclen.fread
4069311 Â 6% +9.2% 4442327 Â 0% iozone.2048KB_8reclen.record_rewrite
722377 Â 2% -9.9% 651034 Â 2% iozone.262144KB_2048reclen
1834196 Â 25% +20.4% 2209265 Â 3% iozone.128KB_4reclen.write
5138057 Â 1% -11.0% 4571125 Â 2% iozone.524288KB_16384reclen.random_read
8282824 Â 3% -9.1% 7531868 Â 0% iozone.262144KB_256reclen.bkwd_read
14346407 Â 2% -10.6% 12826594 Â 4% iozone.512KB_64reclen.random_read
8610754 Â 3% +3.1% 8879944 Â 3% iozone.65536KB_512reclen.random_read
6283152 Â 37% +32.0% 8295378 Â 1% iozone.16384KB_8reclen.fread
8681267 Â 0% -18.2% 7099340 Â 12% iozone.16384KB_512reclen.bkwd_read
4371321 Â 7% +7.6% 4705433 Â 4% iozone.1024KB_32reclen.rewrite
4862202 Â 1% +6.9% 5200107 Â 1% iozone.4096KB_256reclen.rewrite
5590147 Â 6% +6.9% 5973519 Â 2% iozone.2048KB_64reclen.fwrite
8615326 Â 3% -9.3% 7815110 Â 4% iozone.262144KB_512reclen.bkwd_read
8623349 Â 3% +6.7% 9199759 Â 0% iozone.524288KB_128reclen.stride_read
1290 Â 0% -8.9% 1175 Â 0% iozone.time.elapsed_time
1290 Â 0% -8.9% 1175 Â 0% iozone.time.elapsed_time.max
5118732 Â 2% -8.9% 4664576 Â 1% iozone.262144KB_512reclen.rewrite
5397923 Â 4% +5.6% 5702108 Â 1% iozone.32768KB_2048reclen.random_write
8418676 Â 3% +5.5% 8881409 Â 0% iozone.131072KB_256reclen.stride_read
4219879 Â 1% -19.3% 3405999 Â 14% iozone.16384KB_16384reclen.random_write
4212419 Â 2% -14.5% 3600701 Â 9% iozone.512KB_8reclen.record_rewrite
5690229 Â 4% +5.9% 6028126 Â 0% iozone.16384KB_4096reclen.random_read
4177221 Â 2% -11.6% 3691015 Â 5% iozone.512KB_16reclen.frewrite
3632679 Â 2% +7.5% 3906683 Â 2% iozone.65536KB_16384reclen.rewrite
630500 Â 0% -7.3% 584468 Â 0% iozone.8192KB_16reclen
476250 Â 1% -5.2% 451306 Â 0% iozone.262144KB_4096reclen
4761764 Â 3% -13.8% 4105680 Â 7% iozone.1024KB_16reclen.frewrite
440579 Â 2% -5.1% 417928 Â 0% iozone.262144KB_8192reclen
4944802 Â 4% +6.7% 5275429 Â 0% iozone.4096KB_64reclen.frewrite
8388834 Â 4% +5.9% 8881159 Â 0% iozone.65536KB_256reclen.random_read
13208377 Â 3% -8.8% 12044935 Â 2% iozone.1024KB_256reclen.reread
3267837 Â 1% +11.8% 3653307 Â 1% iozone.16384KB_1024reclen.write
2934685 Â 11% +11.5% 3273363 Â 0% iozone.524288KB_8192reclen.frewrite
8298872 Â 3% +5.5% 8754890 Â 3% iozone.16384KB_128reclen.bkwd_read
5310937 Â 4% +9.1% 5796197 Â 0% iozone.262144KB_4096reclen.freread
7770699 Â 14% +14.6% 8905169 Â 2% iozone.65536KB_128reclen.bkwd_read
539518 Â 1% +3.7% 559486 Â 3% iozone.256KB_4reclen
4301008 Â 16% +18.0% 5076857 Â 0% iozone.131072KB_8192reclen.bkwd_read
7490770 Â 3% +2.1% 7650614 Â 3% iozone.2048KB_64reclen.record_rewrite
8474515 Â 2% +8.6% 9201379 Â 0% iozone.131072KB_128reclen.bkwd_read
9752632 Â 3% +1.9% 9935002 Â 3% iozone.8192KB_128reclen.random_read
5918384 Â 12% +10.5% 6539287 Â 3% iozone.2048KB_4reclen.bkwd_read
2646987 Â 5% +7.8% 2853445 Â 0% iozone.4096KB_4reclen.write
8244553 Â 4% +9.6% 9037092 Â 0% iozone.16384KB_128reclen.reread
8103373 Â 7% +8.7% 8807564 Â 2% iozone.131072KB_512reclen.bkwd_read
8695727 Â 5% +5.5% 9177772 Â 2% iozone.16384KB_64reclen.random_read
5117574 Â 1% +4.6% 5353731 Â 1% iozone.2048KB_64reclen.rewrite
8499282 Â 1% +6.5% 9049599 Â 0% iozone.131072KB_512reclen.stride_read
736436 Â 0% -5.7% 694742 Â 0% iozone.131072KB_512reclen
13251967 Â 5% +7.4% 14226322 Â 0% iozone.2048KB_64reclen.random_read
4842288 Â 3% +6.8% 5172749 Â 1% iozone.32768KB_8192reclen.random_read
5632428 Â 3% +6.0% 5971338 Â 2% iozone.16384KB_128reclen.random_write
8232506 Â 10% +8.7% 8946073 Â 1% iozone.16384KB_256reclen.random_read
5224250 Â 1% +4.5% 5457558 Â 1% iozone.131072KB_128reclen.rewrite
7799129 Â 7% +8.7% 8476105 Â 0% iozone.131072KB_256reclen.bkwd_read
706404 Â 6% +7.5% 759081 Â 1% iozone.4096KB_64reclen
3741897 Â 4% +6.3% 3976035 Â 1% iozone.32768KB_4096reclen.rewrite
7867821 Â 1% +5.7% 8312843 Â 0% iozone.131072KB_512reclen.record_rewrite
3213089 Â 1% +4.9% 3371794 Â 1% iozone.262144KB_4096reclen.fwrite
3963945 Â 18% +16.8% 4628496 Â 0% iozone.4096KB_2048reclen.fwrite
12632973 Â 4% +8.7% 13731024 Â 0% iozone.1024KB_16reclen.random_read
5706448 Â 5% +6.3% 6068351 Â 0% iozone.16384KB_4096reclen.reread
12029016 Â 3% +7.4% 12922022 Â 0% iozone.2048KB_16reclen.random_read
8566438 Â 1% -11.1% 7616198 Â 6% iozone.131072KB_512reclen.reread
1752687 Â 10% +14.2% 2000974 Â 0% iozone.128KB_4reclen.fwrite
6353720 Â 21% +17.1% 7442978 Â 1% iozone.256KB_8reclen.bkwd_read
7892141 Â 14% +14.9% 9069494 Â 1% iozone.65536KB_128reclen.read
5280056 Â 2% -9.5% 4779680 Â 5% iozone.8192KB_64reclen.frewrite
3881212 Â 3% -16.3% 3246640 Â 10% iozone.262144KB_16384reclen.record_rewrite
3634480 Â 2% -6.7% 3390913 Â 0% iozone.512KB_32reclen.write
3599606 Â 6% +9.4% 3939272 Â 0% iozone.1024KB_8reclen.random_write
8721661 Â 9% -10.7% 7791708 Â 0% iozone.256KB_4reclen.random_read
2090471 Â 19% -34.5% 1368296 Â 25% iozone.64KB_4reclen.fwrite
3820137 Â 17% +16.0% 4430091 Â 0% iozone.262144KB_1024reclen.frewrite
848883 Â 3% +4.1% 883999 Â 1% iozone.512KB_128reclen
2898218 Â 17% +14.3% 3311275 Â 1% iozone.16384KB_16384reclen.write
711350 Â 0% +4.0% 739847 Â 1% iozone.65536KB_256reclen
528192 Â 3% +7.9% 570016 Â 0% iozone.8192KB_2048reclen
4699597 Â 2% +5.5% 4957064 Â 1% iozone.4096KB_32reclen.frewrite
5049490 Â 5% -7.0% 4693935 Â 0% iozone.16384KB_16384reclen.read
4192784 Â 1% -16.0% 3519980 Â 12% iozone.8192KB_4096reclen.random_write
8570663 Â 0% +3.3% 8855987 Â 2% iozone.65536KB_128reclen.record_rewrite
4278997 Â 0% -5.4% 4046871 Â 0% iozone.1024KB_64reclen.write
8435258 Â 1% -7.3% 7819757 Â 2% iozone.131072KB_256reclen.reread
13740909 Â 2% -8.0% 12646489 Â 2% iozone.1024KB_32reclen.random_read
5393444 Â 2% +3.5% 5581472 Â 1% iozone.8192KB_128reclen.rewrite
4817848 Â 1% +3.8% 5000078 Â 1% iozone.262144KB_512reclen.frewrite
4751289 Â 1% +3.3% 4908770 Â 1% iozone.32768KB_2048reclen.rewrite
5205405 Â 9% +8.9% 5667739 Â 1% iozone.16384KB_2048reclen.random_write
14369401 Â 1% +3.2% 14832934 Â 1% iozone.512KB_128reclen.random_read
8601039 Â 1% +5.3% 9059717 Â 0% iozone.131072KB_1024reclen.stride_read
7725345 Â 19% +16.2% 8980339 Â 0% iozone.1024KB_512reclen.bkwd_read
8189918 Â 10% +10.9% 9085758 Â 1% iozone.65536KB_512reclen.freread
5525682 Â 1% -9.0% 5026193 Â 6% iozone.131072KB_512reclen.random_write
7186070 Â 3% +4.5% 7509587 Â 1% iozone.16384KB_4reclen.read
5014894 Â 0% +2.6% 5144714 Â 2% iozone.131072KB_128reclen.frewrite
8689927 Â 2% -11.1% 7722061 Â 6% iozone.524288KB_256reclen.bkwd_read
7779429 Â 2% -8.6% 7112578 Â 2% iozone.1024KB_256reclen.record_rewrite
5144245 Â 2% -10.4% 4607355 Â 6% iozone.16384KB_128reclen.frewrite
2693551 Â 3% +3.4% 2785077 Â 1% iozone.2048KB_4reclen.record_rewrite
8968489 Â 0% -10.0% 8070177 Â 5% iozone.524288KB_128reclen.random_read
13581297 Â 1% +3.5% 14056095 Â 1% iozone.512KB_256reclen.random_read
8219973 Â 2% -6.5% 7682016 Â 1% iozone.262144KB_64reclen.record_rewrite
7435724 Â 5% +5.7% 7861861 Â 2% iozone.8192KB_512reclen.record_rewrite
8406962 Â 1% +6.6% 8965829 Â 0% iozone.131072KB_2048reclen.stride_read
3960043 Â 4% -7.2% 3676895 Â 0% iozone.16384KB_16reclen.write
3478696 Â 2% +5.6% 3672851 Â 0% iozone.65536KB_2048reclen.frewrite
5145881 Â 2% -17.4% 4250075 Â 13% iozone.524288KB_16384reclen.fread
752211 Â 0% -4.0% 722374 Â 0% iozone.131072KB_128reclen
5020800 Â 1% +4.0% 5219629 Â 1% iozone.65536KB_256reclen.rewrite
8948722 Â 1% +4.4% 9341540 Â 0% iozone.524288KB_2048reclen.fread
4850242 Â 2% +3.7% 5031843 Â 0% iozone.65536KB_1024reclen.rewrite
4966369 Â 15% +15.4% 5730703 Â 0% iozone.524288KB_4096reclen.stride_read
6952176 Â 15% +11.5% 7754097 Â 2% iozone.4096KB_32reclen.fread
9041612 Â 2% +2.6% 9279240 Â 0% iozone.262144KB_2048reclen.freread
4927943 Â 0% +3.7% 5107872 Â 1% iozone.65536KB_256reclen.fwrite
5145327 Â 1% -5.2% 4875664 Â 0% iozone.524288KB_16384reclen.bkwd_read
746903 Â 1% -3.5% 720758 Â 0% iozone.262144KB_64reclen
2141436 Â 6% +5.8% 2266570 Â 0% iozone.16384KB_4reclen.random_write
8894902 Â 1% -5.3% 8425790 Â 0% iozone.32768KB_128reclen.random_read
6284873 Â 1% +2.6% 6448006 Â 1% iozone.8192KB_64reclen.bkwd_read
5472662 Â 6% +5.4% 5767528 Â 1% iozone.16384KB_64reclen.random_write
8802415 Â 1% +5.5% 9290691 Â 0% iozone.131072KB_128reclen.freread
6825709 Â 16% -14.7% 5823936 Â 0% iozone.8192KB_512reclen.bkwd_read
9002211 Â 1% +3.2% 9293885 Â 0% iozone.524288KB_2048reclen.freread
9060520 Â 0% +4.2% 9442930 Â 0% iozone.524288KB_1024reclen.reread
8570321 Â 1% +3.0% 8824025 Â 1% iozone.8192KB_128reclen.reread
5511902 Â 3% +5.4% 5811039 Â 0% iozone.262144KB_4096reclen.fread
7290581 Â 2% +3.4% 7541658 Â 1% iozone.512KB_64reclen.record_rewrite
8557473 Â 15% +15.3% 9868433 Â 0% iozone.256KB_64reclen.reread
8914463 Â 1% +4.9% 9355452 Â 0% iozone.262144KB_64reclen.fread
799025 Â 1% +4.3% 833154 Â 1% iozone.2048KB_256reclen
3713883 Â 2% -3.4% 3588362 Â 0% iozone.131072KB_64reclen.write
755537 Â 1% +1.7% 768587 Â 1% iozone.1024KB_16reclen
710165 Â 1% +3.5% 734717 Â 1% iozone.1024KB_8reclen
8835260 Â 4% +5.1% 9284112 Â 0% iozone.524288KB_1024reclen.stride_read
3529822 Â 1% +3.8% 3663421 Â 0% iozone.131072KB_8192reclen.rewrite
7863389 Â 14% +12.6% 8855866 Â 0% iozone.16384KB_128reclen.read
5670555 Â 0% -4.3% 5429164 Â 0% iozone.262144KB_4096reclen.bkwd_read
860746 Â 1% +2.9% 886092 Â 1% iozone.1024KB_128reclen
5633521 Â 3% -7.7% 5198984 Â 1% iozone.1024KB_32reclen.fwrite
722227 Â 1% -3.9% 693896 Â 0% iozone.262144KB_1024reclen
2465364 Â 1% +2.9% 2537975 Â 0% iozone.1024KB_4reclen.frewrite
4096279 Â 5% +4.0% 4261022 Â 1% iozone.1024KB_512reclen.write
8709898 Â 6% +7.6% 9368367 Â 0% iozone.524288KB_64reclen.reread
5650560 Â 3% -10.8% 5041445 Â 4% iozone.1024KB_512reclen.fwrite
4978457 Â 6% +7.3% 5343755 Â 0% iozone.16384KB_8192reclen.read
4506463 Â 16% +12.9% 5086235 Â 0% iozone.131072KB_8192reclen.fread
8756733 Â 2% +2.1% 8939757 Â 1% iozone.8192KB_2048reclen.read
6435816 Â 11% +10.5% 7109834 Â 1% iozone.2048KB_1024reclen.frewrite
8246013 Â 6% +6.3% 8762089 Â 1% iozone.16384KB_512reclen.fread
5154158 Â 2% +2.6% 5286682 Â 1% iozone.131072KB_64reclen.rewrite
8288609 Â 2% +3.4% 8571211 Â 0% iozone.32768KB_2048reclen.freread
4997063 Â 2% +5.5% 5273138 Â 0% iozone.262144KB_8192reclen.fread
731906 Â 0% -2.7% 711971 Â 1% iozone.131072KB_256reclen
7568695 Â 0% -5.0% 7190624 Â 1% iozone.8192KB_4reclen.reread
4857649 Â 3% +5.2% 5109039 Â 0% iozone.131072KB_16384reclen.bkwd_read
4305394 Â 4% +4.7% 4509380 Â 0% iozone.16384KB_4096reclen.random_write
8707732 Â 6% +6.4% 9261780 Â 0% iozone.262144KB_2048reclen.fread
9053742 Â 1% -4.2% 8670031 Â 0% iozone.32768KB_128reclen.reread
13147518 Â 1% -4.4% 12565952 Â 0% iozone.1024KB_256reclen.random_read
8734670 Â 1% +4.4% 9119246 Â 0% iozone.524288KB_256reclen.freread
5165047 Â 0% +3.1% 5324018 Â 0% iozone.524288KB_64reclen.rewrite
5090097 Â 0% +3.5% 5268805 Â 0% iozone.262144KB_8192reclen.read
8618018 Â 2% +4.5% 9007477 Â 0% iozone.16384KB_512reclen.read
2596796 Â 4% +4.6% 2717180 Â 1% iozone.16384KB_4reclen.frewrite
7537760 Â 1% -4.4% 7202589 Â 0% iozone.8192KB_4reclen.read
4877143 Â 1% +3.6% 5053563 Â 0% iozone.131072KB_64reclen.frewrite
8735163 Â 1% -3.4% 8438783 Â 0% iozone.16384KB_16reclen.reread
7968658 Â 1% -4.6% 7603941 Â 1% iozone.262144KB_1024reclen.record_rewrite
8474810 Â 0% -2.7% 8241844 Â 0% iozone.524288KB_64reclen.record_rewrite
8374674 Â 1% +2.6% 8589893 Â 0% iozone.131072KB_256reclen.read
506646 Â 2% -5.1% 480998 Â 1% iozone.8192KB_4reclen
4264006 Â 16% +15.3% 4916284 Â 1% iozone.32768KB_8192reclen.bkwd_read
8502362 Â 0% +3.1% 8764301 Â 0% iozone.16384KB_256reclen.stride_read
4033525 Â 3% -6.4% 3775337 Â 0% iozone.4096KB_8reclen.fwrite
8660785 Â 1% +3.7% 8979059 Â 1% iozone.65536KB_64reclen.fread
4272540 Â 2% +3.5% 4423901 Â 0% iozone.32768KB_1024reclen.frewrite
4660936 Â 20% +15.5% 5384361 Â 1% iozone.2048KB_2048reclen.frewrite
8841767 Â 3% +5.0% 9287418 Â 0% iozone.524288KB_512reclen.bkwd_read
8363629 Â 0% -9.6% 7562760 Â 6% iozone.131072KB_256reclen.freread
4924284 Â 0% +3.4% 5090277 Â 0% iozone.262144KB_256reclen.frewrite
444239 Â 0% -4.0% 426444 Â 0% iozone.32768KB_8192reclen
7239692 Â 19% +15.8% 8385359 Â 0% iozone.16384KB_2048reclen.fread
3186860 Â 6% +6.4% 3390568 Â 1% iozone.262144KB_16384reclen.fwrite
693176 Â 3% +2.9% 713360 Â 1% iozone.4096KB_32reclen
9876019 Â 6% -10.6% 8824718 Â 3% iozone.256KB_32reclen.reread
3640648 Â 2% -6.6% 3399521 Â 1% iozone.2048KB_8reclen.frewrite
5510551 Â 0% -20.8% 4363318 Â 21% iozone.8192KB_8192reclen.stride_read
5075625 Â 2% -7.1% 4713577 Â 4% iozone.16384KB_8192reclen.frewrite
3541634 Â 9% +9.2% 3866061 Â 0% iozone.16384KB_8reclen.fwrite
4121169 Â 2% -6.5% 3853787 Â 2% iozone.16384KB_16384reclen.fwrite
3760939 Â 1% +2.7% 3861953 Â 0% iozone.16384KB_8reclen.frewrite
8157284 Â 1% +2.9% 8396221 Â 0% iozone.16384KB_256reclen.record_rewrite
4994815 Â 1% -20.4% 3977567 Â 22% iozone.65536KB_16384reclen.reread
9168752 Â 0% +2.7% 9413922 Â 0% iozone.524288KB_1024reclen.read
4093851 Â 7% +8.4% 4438329 Â 0% iozone.262144KB_1024reclen.fwrite
8775725 Â 0% +1.6% 8916270 Â 0% iozone.131072KB_128reclen.record_rewrite
4899985 Â 6% +7.6% 5271924 Â 0% iozone.262144KB_16384reclen.fread
5052411 Â 1% +3.6% 5232803 Â 0% iozone.524288KB_8192reclen.fread
5138795 Â 3% +3.4% 5311191 Â 1% iozone.16384KB_16384reclen.freread
8127109 Â 10% +10.3% 8962844 Â 0% iozone.32768KB_1024reclen.freread
3240859 Â 0% +4.2% 3375574 Â 0% iozone.16384KB_8reclen.random_write
8558845 Â 5% +6.9% 9149078 Â 0% iozone.262144KB_512reclen.fread
9047729 Â 1% +2.8% 9298371 Â 0% iozone.524288KB_512reclen.fread
598367 Â 1% +2.2% 611721 Â 0% iozone.16384KB_8reclen
7924619 Â 15% +13.2% 8971887 Â 0% iozone.65536KB_128reclen.fread
5934921 Â 0% -12.5% 5192079 Â 10% iozone.8192KB_1024reclen.random_write
5794602 Â 2% +2.8% 5958451 Â 1% iozone.16384KB_256reclen.random_write
8709385 Â 1% +3.7% 9027315 Â 0% iozone.131072KB_256reclen.random_read
4140616 Â 3% +4.3% 4320284 Â 0% iozone.32768KB_8192reclen.random_write
5549357 Â 0% +2.9% 5711175 Â 0% iozone.262144KB_512reclen.random_write
732794 Â 4% +5.1% 770280 Â 0% iozone.65536KB_128reclen
6523770 Â 1% +1.5% 6621037 Â 1% iozone.8192KB_128reclen.random_write
3593208 Â 3% -7.2% 3335532 Â 3% iozone.131072KB_2048reclen.frewrite
8285967 Â 0% +2.0% 8449693 Â 1% iozone.16384KB_64reclen.record_rewrite
1.647e+08 Â 1% +2.0% 1.68e+08 Â 1% iozone.reread_KBps
4720579 Â 11% +10.0% 5191956 Â 0% iozone.524288KB_16384reclen.stride_read
5405499 Â 0% +2.9% 5560629 Â 0% iozone.131072KB_4096reclen.fread
8492214 Â 7% +7.3% 9111754 Â 0% iozone.262144KB_512reclen.freread
3609222 Â 1% +1.2% 3651428 Â 1% iozone.262144KB_2048reclen.frewrite
3622658 Â 3% +4.4% 3781302 Â 0% iozone.8192KB_16reclen.write
7708839 Â 3% +4.8% 8079310 Â 0% iozone.8192KB_1024reclen.record_rewrite
821327 Â 1% -3.0% 796539 Â 0% iozone.512KB_64reclen
6471648 Â 2% +2.9% 6658424 Â 1% iozone.16384KB_4reclen.bkwd_read
7966254 Â 1% +1.9% 8118825 Â 0% iozone.524288KB_256reclen.record_rewrite
9006794 Â 1% -12.4% 7887715 Â 11% iozone.32768KB_64reclen.freread
4198799 Â 4% +4.7% 4394653 Â 0% iozone.4096KB_512reclen.write
667396 Â 2% +3.0% 687243 Â 0% iozone.128KB_32reclen
5131940 Â 1% +2.0% 5234578 Â 0% iozone.262144KB_8192reclen.freread
2649388 Â 1% -4.3% 2534745 Â 1% iozone.1024KB_4reclen.fwrite
8440344 Â 9% +7.6% 9079989 Â 0% iozone.16384KB_1024reclen.reread
2567854 Â 1% +1.5% 2607344 Â 0% iozone.2048KB_4reclen.rewrite
4829612 Â 3% +3.8% 5011975 Â 0% iozone.16384KB_512reclen.frewrite
7509821 Â 1% +2.0% 7661779 Â 0% iozone.16384KB_8reclen.bkwd_read
9245568 Â 1% +1.4% 9376836 Â 0% iozone.524288KB_64reclen.fread
3664908 Â 0% +1.7% 3726704 Â 0% iozone.524288KB_16384reclen.rewrite
1.82e+08 Â 0% +0.6% 1.831e+08 Â 0% iozone.random_read_KBps
7963590 Â 15% +13.0% 8997166 Â 0% iozone.524288KB_256reclen.stride_read
4818207 Â 7% +5.4% 5078775 Â 0% iozone.8192KB_256reclen.fwrite
8282307 Â 1% +3.2% 8547026 Â 0% iozone.131072KB_256reclen.record_rewrite
653264 Â 0% +1.8% 664923 Â 0% iozone.16384KB_16reclen
4492579 Â 22% +16.7% 5241982 Â 0% iozone.524288KB_8192reclen.stride_read
5068640 Â 0% +2.3% 5184945 Â 0% iozone.524288KB_16384reclen.read
8477862 Â 12% +9.0% 9241119 Â 0% iozone.524288KB_2048reclen.bkwd_read
3159354 Â 9% +8.3% 3421414 Â 0% iozone.262144KB_16384reclen.frewrite
5271794 Â 5% +4.5% 5511542 Â 0% iozone.131072KB_4096reclen.bkwd_read
2849172 Â 1% -2.7% 2772173 Â 0% iozone.16384KB_4reclen.record_rewrite
9093349 Â 1% +2.2% 9293596 Â 0% iozone.524288KB_2048reclen.stride_read
5991723 Â 0% +1.9% 6107710 Â 0% iozone.65536KB_128reclen.random_write
5041457 Â 0% +2.1% 5147851 Â 0% iozone.32768KB_8192reclen.freread
3202511 Â 5% +5.4% 3374970 Â 0% iozone.262144KB_4096reclen.frewrite
4433969 Â 1% -6.6% 4143523 Â 3% iozone.8192KB_16reclen.rewrite
9101889 Â 1% +1.5% 9236783 Â 0% iozone.524288KB_512reclen.read
4859536 Â 9% +8.8% 5285787 Â 0% iozone.262144KB_16384reclen.freread
79784238 Â 0% -1.9% 78230145 Â 0% iozone.fwrite_KBps
740026 Â 0% -2.8% 719505 Â 0% iozone.262144KB_256reclen
4103998 Â 5% -5.4% 3881293 Â 0% iozone.262144KB_512reclen.write
5166349 Â 18% +14.5% 5917164 Â 0% iozone.16384KB_4096reclen.fread
8542266 Â 4% +3.8% 8868681 Â 0% iozone.16384KB_128reclen.record_rewrite
5234914 Â 2% -4.1% 5019179 Â 1% iozone.1024KB_1024reclen.rewrite
8739322 Â 0% -5.4% 8266567 Â 3% iozone.131072KB_1024reclen.freread
5088472 Â 1% -2.8% 4944942 Â 0% iozone.16384KB_32reclen.rewrite
8587630 Â 10% +8.4% 9307652 Â 0% iozone.524288KB_128reclen.freread
5809713 Â 0% -10.0% 5230213 Â 8% iozone.262144KB_128reclen.random_write
4921492 Â 0% -1.6% 4844785 Â 0% iozone.262144KB_64reclen.frewrite
3327837 Â 0% -4.4% 3181225 Â 3% iozone.131072KB_8192reclen.frewrite
5762326 Â 1% +1.4% 5845299 Â 0% iozone.16384KB_16reclen.record_rewrite
8542725 Â 0% +1.3% 8656262 Â 0% iozone.131072KB_1024reclen.read
8031016 Â 9% +7.8% 8657238 Â 0% iozone.16384KB_1024reclen.fread
438258 Â 0% -4.1% 420454 Â 2% iozone.65536KB_16384reclen
771229 Â 0% -5.1% 731522 Â 4% iozone.262144KB_128reclen
775060 Â 0% +1.0% 783069 Â 0% iozone.256KB_64reclen
3800316 Â 0% -3.4% 3672024 Â 1% iozone.65536KB_16384reclen.frewrite
7467330 Â 14% +11.3% 8309007 Â 0% iozone.8192KB_8reclen.reread
5397975 Â 1% -2.4% 5268371 Â 0% iozone.524288KB_128reclen.rewrite
2639373 Â 0% +0.7% 2658316 Â 0% iozone.16384KB_4reclen.rewrite
5207951 Â 0% +0.7% 5246733 Â 0% iozone.65536KB_128reclen.fwrite
8636430 Â 0% -1.7% 8489977 Â 0% iozone.131072KB_2048reclen.fread
1.523e+08 Â 0% -1.5% 1.5e+08 Â 0% iozone.stride_read_KBps
8572154 Â 0% -2.1% 8393402 Â 0% iozone.16384KB_16reclen.read
4258462 Â 5% +5.1% 4476593 Â 0% iozone.131072KB_256reclen.write
8551275 Â 1% -2.2% 8359432 Â 0% iozone.16384KB_16reclen.freread
7314313 Â 0% +0.5% 7353814 Â 0% iozone.16384KB_32reclen.record_rewrite
78739168 Â 8% -93.2% 5348444 Â 5% cpuidle.C3-SNB.time
758 Â 26% -86.9% 99 Â 5% sched_debug.cpu#0.load
16666 Â 4% -81.2% 3127 Â 0% cpuidle.C3-SNB.usage
1 Â 0% -100.0% 0 Â 0% vmstat.procs.b
113046 Â 0% -72.0% 31652 Â 0% softirqs.BLOCK
28577 Â 4% -85.3% 4202 Â 1% proc-vmstat.nr_dirty
114128 Â 4% -85.1% 16992 Â 2% meminfo.Dirty
51312 Â 1% +98.3% 101737 Â 3% time.voluntary_context_switches
39 Â 36% +38.6% 54 Â 10% sched_debug.cpu#3.nr_uninterruptible
0.43 Â 29% +82.8% 0.78 Â 29% perf-profile.cpu-cycles.write_ctree_super.btrfs_sync_log.btrfs_sync_file.do_fsync.sys_fsync
124727 Â 1% +79.8% 224216 Â 0% meminfo.Writeback
31156 Â 1% +80.0% 56074 Â 0% proc-vmstat.nr_writeback
5 Â 22% +155.9% 14 Â 3% sched_debug.cfs_rq[3]:/.nr_spread_over
48927281 Â 9% +89.1% 92526867 Â 6% cpuidle.C1-SNB.time
11 Â 19% -63.6% 4 Â 25% sched_debug.cfs_rq[0]:/.nr_spread_over
18 Â 32% -53.6% 8 Â 5% sched_debug.cfs_rq[2]:/.nr_spread_over
10 Â 22% +82.8% 19 Â 17% sched_debug.cpu#1.cpu_load[0]
1009 Â 36% +32.2% 1334 Â 24% slabinfo.btrfs_delayed_data_ref.active_objs
1023 Â 35% +31.0% 1341 Â 23% slabinfo.btrfs_delayed_data_ref.num_objs
3439 Â 39% -60.8% 1350 Â 28% sched_debug.cpu#0.curr->pid
45 Â 16% -46.4% 24 Â 6% sched_debug.cfs_rq[0]:/.runnable_load_avg
9 Â 35% +75.9% 17 Â 11% sched_debug.cpu#1.cpu_load[1]
412610 Â 0% -36.8% 260704 Â 2% cpuidle.C6-SNB.usage
772 Â 0% +32.5% 1023 Â 0% slabinfo.kmalloc-2048.num_objs
736 Â 0% +28.1% 944 Â 0% slabinfo.kmalloc-2048.active_objs
1.71 Â 13% -31.7% 1.17 Â 6% perf-profile.cpu-cycles.ata_sff_tf_load.ata_bmdma_qc_issue.ata_qc_issue.ata_scsi_queuecmd.scsi_dispatch_cmd
0.70 Â 14% +33.6% 0.94 Â 10% perf-profile.cpu-cycles.scsi_request_fn.__blk_run_queue.blk_queue_bio.generic_make_request.submit_bio
1.81 Â 7% +34.0% 2.42 Â 11% perf-profile.cpu-cycles.btrfs_sync_log.btrfs_sync_file.do_fsync.sys_fsync.system_call_fastpath
1.55 Â 12% -30.5% 1.08 Â 7% perf-profile.cpu-cycles.__const_udelay.ata_sff_tf_load.ata_bmdma_qc_issue.ata_qc_issue.ata_scsi_queuecmd
0.86 Â 7% +40.1% 1.20 Â 4% perf-profile.cpu-cycles.__set_page_dirty_nobuffers.btrfs_set_page_dirty.set_page_dirty.btrfs_dirty_pages.__btrfs_buffered_write
511 Â 1% +48.5% 759 Â 0% slabinfo.mnt_cache.num_objs
786 Â 16% -35.9% 504 Â 3% sched_debug.cfs_rq[1]:/.tg_load_contrib
849 Â 12% +33.3% 1132 Â 4% sched_debug.cfs_rq[0]:/.blocked_load_avg
475 Â 1% +44.2% 685 Â 0% slabinfo.mnt_cache.active_objs
9 Â 49% +66.1% 15 Â 3% sched_debug.cpu#1.cpu_load[2]
230 Â 32% +43.5% 330 Â 17% sched_debug.cfs_rq[2]:/.load
6.92 Â 4% -20.9% 5.47 Â 6% perf-profile.cpu-cycles.ata_bmdma_qc_issue.ata_qc_issue.ata_scsi_queuecmd.scsi_dispatch_cmd.scsi_request_fn
232 Â 31% +42.2% 330 Â 16% sched_debug.cpu#2.load
0.84 Â 8% +26.3% 1.06 Â 11% perf-profile.cpu-cycles.enqueue_task_fair.enqueue_task.activate_task.ttwu_do_activate.try_to_wake_up
1.22 Â 18% -34.4% 0.80 Â 7% perf-profile.cpu-cycles.delay_tsc.__const_udelay.ata_sff_tf_load.ata_bmdma_qc_issue.ata_qc_issue
765 Â 18% -37.1% 481 Â 4% sched_debug.cfs_rq[1]:/.blocked_load_avg
903 Â 10% +29.1% 1166 Â 3% sched_debug.cfs_rq[0]:/.tg_load_contrib
844 Â 15% -31.0% 582 Â 5% slabinfo.btrfs_trans_handle.active_objs
0.77 Â 6% +20.7% 0.93 Â 13% perf-profile.cpu-cycles.enqueue_entity.enqueue_task_fair.enqueue_task.activate_task.ttwu_do_activate
117674 Â 3% -21.3% 92602 Â 0% sched_debug.cpu#0.ttwu_local
1.022e+08 Â 0% -19.7% 81997390 Â 0% cpuidle.C1E-SNB.time
1.60 Â 8% +25.3% 2.00 Â 2% perf-profile.cpu-cycles.btrfs_dirty_pages.__btrfs_buffered_write.btrfs_file_write_iter.new_sync_write.vfs_write
853 Â 14% -29.4% 602 Â 5% slabinfo.btrfs_trans_handle.num_objs
3508 Â 0% +14.2% 4007 Â 0% uptime.idle
285629 Â 7% +10.3% 314942 Â 0% sched_debug.cpu#2.sched_goidle
0.96 Â 7% +31.3% 1.27 Â 0% perf-profile.cpu-cycles.btrfs_set_page_dirty.set_page_dirty.btrfs_dirty_pages.__btrfs_buffered_write.btrfs_file_write_iter
583101 Â 7% +9.8% 640157 Â 0% sched_debug.cpu#2.sched_count
580000 Â 7% +10.0% 637904 Â 0% sched_debug.cpu#2.nr_switches
0.93 Â 12% +17.3% 1.09 Â 7% perf-profile.cpu-cycles.find_lock_delalloc_range.constprop.44.writepage_delalloc.__extent_writepage.extent_write_cache_pages.extent_writepages
1.30 Â 2% +21.5% 1.58 Â 2% perf-profile.cpu-cycles.set_page_dirty.btrfs_dirty_pages.__btrfs_buffered_write.btrfs_file_write_iter.new_sync_write
804132 Â 10% -18.4% 656255 Â 2% sched_debug.cpu#2.avg_idle
87472 Â 1% -18.0% 71705 Â 0% sched_debug.cpu#0.nr_load_updates
19076 Â 1% +20.0% 22898 Â 3% sched_debug.cfs_rq[1]:/.exec_clock
134079 Â 2% -18.3% 109513 Â 1% sched_debug.cpu#0.sched_goidle
43539 Â 1% -13.0% 37872 Â 1% sched_debug.cfs_rq[0]:/.exec_clock
281360 Â 2% -17.6% 231880 Â 1% sched_debug.cpu#0.nr_switches
323775 Â 1% -14.2% 277704 Â 5% sched_debug.cpu#1.ttwu_local
284555 Â 2% -17.8% 233791 Â 1% sched_debug.cpu#0.sched_count
286836 Â 6% +8.8% 312002 Â 4% sched_debug.cpu#3.ttwu_count
28292 Â 3% +24.9% 35336 Â 3% sched_debug.cfs_rq[1]:/.min_vruntime
291421 Â 5% +10.1% 320997 Â 4% sched_debug.cpu#3.sched_goidle
258989 Â 6% +10.6% 286386 Â 5% sched_debug.cpu#3.ttwu_local
591002 Â 5% +10.1% 650795 Â 4% sched_debug.cpu#3.nr_switches
594058 Â 5% +9.9% 652918 Â 4% sched_debug.cpu#3.sched_count
3.64 Â 4% +9.0% 3.97 Â 5% perf-profile.cpu-cycles.start_secondary
3.56 Â 4% +9.4% 3.89 Â 5% perf-profile.cpu-cycles.cpu_startup_entry.start_secondary
1678 Â 0% +18.2% 1984 Â 0% slabinfo.kmalloc-1024.active_objs
1706 Â 0% +17.9% 2012 Â 0% slabinfo.kmalloc-1024.num_objs
16895 Â 4% -14.0% 14534 Â 4% sched_debug.cfs_rq[3]:/.min_vruntime
1382 Â 7% +6.2% 1468 Â 5% slabinfo.proc_inode_cache.active_objs
8.76 Â 1% +13.2% 9.91 Â 0% perf-profile.cpu-cycles.new_sync_read.vfs_read.sys_read.system_call_fastpath.__read_nocancel
8.77 Â 2% +13.1% 9.91 Â 0% perf-profile.cpu-cycles.vfs_read.sys_read.system_call_fastpath.__read_nocancel
16.92 Â 0% -13.9% 14.57 Â 1% perf-profile.cpu-cycles.do_IRQ.ret_from_intr.cpuidle_enter.cpu_startup_entry.rest_init
16.93 Â 0% -13.6% 14.62 Â 1% perf-profile.cpu-cycles.ret_from_intr.cpuidle_enter.cpu_startup_entry.rest_init.start_kernel
8.80 Â 2% +12.8% 9.93 Â 0% perf-profile.cpu-cycles.__read_nocancel
8.78 Â 2% +13.0% 9.91 Â 0% perf-profile.cpu-cycles.sys_read.system_call_fastpath.__read_nocancel
8.79 Â 1% +12.8% 9.91 Â 0% perf-profile.cpu-cycles.system_call_fastpath.__read_nocancel
8 Â 0% +12.5% 9 Â 0% time.percent_of_cpu_this_job_got
1714 Â 0% +12.0% 1920 Â 0% slabinfo.kmalloc-96.num_objs
255258 Â 8% +11.5% 284664 Â 0% sched_debug.cpu#2.ttwu_local
1639 Â 1% +12.2% 1839 Â 0% slabinfo.kmalloc-96.active_objs
15.35 Â 0% -13.7% 13.25 Â 3% perf-profile.cpu-cycles.irq_exit.do_IRQ.ret_from_intr.cpuidle_enter.cpu_startup_entry
15.21 Â 0% -13.2% 13.20 Â 3% perf-profile.cpu-cycles.__do_softirq.irq_exit.do_IRQ.ret_from_intr.cpuidle_enter
2.05 Â 6% +5.8% 2.17 Â 3% perf-profile.cpu-cycles.btrfs_csum_data.btrfs_csum_one_bio.btrfs_submit_bio_hook.submit_one_bio.flush_epd_write_bio
8.53 Â 0% +1627.3% 147.42 Â 0% iostat.sda.wrqm/s
868 Â 0% +719.9% 7122 Â 1% iostat.sda.avgrq-sz
170.07 Â 0% -71.5% 48.53 Â 0% iostat.sda.w/s
837 Â 0% +121.6% 1855 Â 0% iostat.sda.w_await
837 Â 0% +121.6% 1855 Â 0% iostat.sda.await
143.46 Â 0% -71.5% 40.85 Â 0% iostat.sda.avgqu-sz
1936 Â 0% +11.0% 2149 Â 0% vmstat.system.cs
74904 Â 0% +9.7% 82169 Â 0% vmstat.io.bo
74884 Â 0% +9.7% 82165 Â 0% iostat.sda.wkB/s

lkp-ws02: Westmere-EP
Memory: 16G

snb-drag: Sandy Bridge
Memory: 6G

bay: Pentium D
Memory: 2G

ivb44: Ivytown Ivy Bridge-EP
Memory: 64G

iostat.sdi.wrqm/s

90 ++---------------------------------------------------------------------+
| O O O O O O O O |
80 O+ O O O O O O O O O O
70 ++O O O O O O O O O OO O O O |
| |
60 ++ |
50 ++ |
| |
40 ++ |
30 ++ |
*. .*. .*. |
20 ++*.* *.* *.*.*.*.* *.*.* |
10 ++ : : |
| : : |
0 ++----------O---O------------------------------------O---------O-------+

[*] bisect-good sample
[O] bisect-bad sample

To reproduce:

apt-get install ruby ruby-oj
git clone git://git.kernel.org/pub/scm/linux/kernel/git/wfg/lkp-tests.git
cd lkp-tests
bin/setup-local job.yaml # the job file attached in this email
bin/run-local job.yaml

Disclaimer:
Results have been estimated based on internal Intel analysis and are provided
for informational purposes only. Any difference in system hardware or software
design or configuration may affect actual performance.

Thanks,
Huang, Ying

---
testcase: dd-write
default_monitors:
wait: pre-test
uptime:
iostat:
vmstat:
numa-numastat:
numa-vmstat:
numa-meminfo:
proc-vmstat:
proc-stat:
meminfo:
slabinfo:
interrupts:
lock_stat:
latency_stats:
softirqs:
bdi_dev_mapping:
diskstats:
cpuidle:
cpufreq:
turbostat:
sched_debug:
interval: 10
pmeter:
default_watchdogs:
watch-oom:
watchdog:
cpufreq_governor:
commit: 406d4044a3ed9c1455e74914d9bbc49de35a51d7
model: Core2
memory: 8G
nr_hdd_partitions: 12
hdd_partitions: "/dev/disk/by-id/scsi-35000c5000*-part1"
swap_partitions:
runtime: 5m
disk: 11HDD
md:
- JBOD
iosched:
- cfq
fs:
- ext4
fs2:
-
monitors:
perf-stat:
perf-profile:
ftrace:
- events: balance_dirty_pages bdi_dirty_ratelimit global_dirty_state writeback_single_inode
nr_threads:
- 10dd
dd:
testbox: lkp-st02
tbox_group: lkp-st02
kconfig: x86_64-rhel
enqueue_time: 2014-12-16 02:28:06.248468280 +08:00
head_commit: 406d4044a3ed9c1455e74914d9bbc49de35a51d7
base_commit: b2776bf7149bddd1f4161f14f79520f17fc1d71d
branch: linux-devel/devel-hourly-2014121907
kernel: "/kernel/x86_64-rhel/406d4044a3ed9c1455e74914d9bbc49de35a51d7/vmlinuz-3.18.0-g406d404"
user: lkp
queue: cyclic
rootfs: debian-x86_64.cgz
result_root: "/result/lkp-st02/dd-write/5m-11HDD-JBOD-cfq-ext4-10dd/debian-x86_64.cgz/x86_64-rhel/406d4044a3ed9c1455e74914d9bbc49de35a51d7/0"
job_file: "/lkp/scheduled/lkp-st02/cyclic_dd-write-5m-11HDD-JBOD-cfq-ext4-10dd-x86_64-rhel-HEAD-406d4044a3ed9c1455e74914d9bbc49de35a51d7-0.yaml"
dequeue_time: 2014-12-19 11:21:33.802276274 +08:00
job_state: finished
loadavg: 79.12 69.10 31.81 1/154 6761
start_time: '1418959356'
end_time: '1418959681'
version: "/lkp/lkp/.src-20141219-090914"
time_delta: '1418959305.662960627'
echo 1 > /sys/kernel/debug/tracing/events/writeback/balance_dirty_pages/enable
echo 1 > /sys/kernel/debug/tracing/events/writeback/bdi_dirty_ratelimit/enable
echo 1 > /sys/kernel/debug/tracing/events/writeback/global_dirty_state/enable
echo 1 > /sys/kernel/debug/tracing/events/writeback/writeback_single_inode/enable
mkfs -t ext4 -q -F /dev/sdb1
mkfs -t ext4 -q -F /dev/sdg1
mkfs -t ext4 -q -F /dev/sdk1
mkfs -t ext4 -q -F /dev/sdh1
mkfs -t ext4 -q -F /dev/sdi1
mkfs -t ext4 -q -F /dev/sdj1
mkfs -t ext4 -q -F /dev/sde1
mkfs -t ext4 -q -F /dev/sdc1
mkfs -t ext4 -q -F /dev/sdm1
mkfs -t ext4 -q -F /dev/sdf1
mkfs -t ext4 -q -F /dev/sdl1
mount -t ext4 /dev/sdb1 /fs/sdb1
mount -t ext4 /dev/sdj1 /fs/sdj1
mount -t ext4 /dev/sdi1 /fs/sdi1
mount -t ext4 /dev/sdk1 /fs/sdk1
mount -t ext4 /dev/sdm1 /fs/sdm1
mount -t ext4 /dev/sdg1 /fs/sdg1
mount -t ext4 /dev/sdl1 /fs/sdl1
mount -t ext4 /dev/sdh1 /fs/sdh1
mount -t ext4 /dev/sde1 /fs/sde1
mount -t ext4 /dev/sdf1 /fs/sdf1
mount -t ext4 /dev/sdc1 /fs/sdc1
dd if=/dev/zero of=/fs/sdb1/zero-1 status=noxfer &
dd if=/dev/zero of=/fs/sdj1/zero-1 status=noxfer &
dd if=/dev/zero of=/fs/sdi1/zero-1 status=noxfer &
dd if=/dev/zero of=/fs/sdk1/zero-1 status=noxfer &
dd if=/dev/zero of=/fs/sdm1/zero-1 status=noxfer &
dd if=/dev/zero of=/fs/sdg1/zero-1 status=noxfer &
dd if=/dev/zero of=/fs/sdl1/zero-1 status=noxfer &
dd if=/dev/zero of=/fs/sdh1/zero-1 status=noxfer &
dd if=/dev/zero of=/fs/sde1/zero-1 status=noxfer &
dd if=/dev/zero of=/fs/sdf1/zero-1 status=noxfer &
dd if=/dev/zero of=/fs/sdc1/zero-1 status=noxfer &
dd if=/dev/zero of=/fs/sdb1/zero-2 status=noxfer &
dd if=/dev/zero of=/fs/sdj1/zero-2 status=noxfer &
dd if=/dev/zero of=/fs/sdi1/zero-2 status=noxfer &
dd if=/dev/zero of=/fs/sdk1/zero-2 status=noxfer &
dd if=/dev/zero of=/fs/sdm1/zero-2 status=noxfer &
dd if=/dev/zero of=/fs/sdg1/zero-2 status=noxfer &
dd if=/dev/zero of=/fs/sdl1/zero-2 status=noxfer &
dd if=/dev/zero of=/fs/sdh1/zero-2 status=noxfer &
dd if=/dev/zero of=/fs/sde1/zero-2 status=noxfer &
dd if=/dev/zero of=/fs/sdf1/zero-2 status=noxfer &
dd if=/dev/zero of=/fs/sdc1/zero-2 status=noxfer &
dd if=/dev/zero of=/fs/sdb1/zero-3 status=noxfer &
dd if=/dev/zero of=/fs/sdj1/zero-3 status=noxfer &
dd if=/dev/zero of=/fs/sdi1/zero-3 status=noxfer &
dd if=/dev/zero of=/fs/sdk1/zero-3 status=noxfer &
dd if=/dev/zero of=/fs/sdm1/zero-3 status=noxfer &
dd if=/dev/zero of=/fs/sdg1/zero-3 status=noxfer &
dd if=/dev/zero of=/fs/sdl1/zero-3 status=noxfer &
dd if=/dev/zero of=/fs/sdh1/zero-3 status=noxfer &
dd if=/dev/zero of=/fs/sde1/zero-3 status=noxfer &
dd if=/dev/zero of=/fs/sdf1/zero-3 status=noxfer &
dd if=/dev/zero of=/fs/sdc1/zero-3 status=noxfer &
dd if=/dev/zero of=/fs/sdb1/zero-4 status=noxfer &
dd if=/dev/zero of=/fs/sdj1/zero-4 status=noxfer &
dd if=/dev/zero of=/fs/sdi1/zero-4 status=noxfer &
dd if=/dev/zero of=/fs/sdk1/zero-4 status=noxfer &
dd if=/dev/zero of=/fs/sdm1/zero-4 status=noxfer &
dd if=/dev/zero of=/fs/sdg1/zero-4 status=noxfer &
dd if=/dev/zero of=/fs/sdl1/zero-4 status=noxfer &
dd if=/dev/zero of=/fs/sdh1/zero-4 status=noxfer &
dd if=/dev/zero of=/fs/sde1/zero-4 status=noxfer &
dd if=/dev/zero of=/fs/sdf1/zero-4 status=noxfer &
dd if=/dev/zero of=/fs/sdc1/zero-4 status=noxfer &
dd if=/dev/zero of=/fs/sdb1/zero-5 status=noxfer &
dd if=/dev/zero of=/fs/sdj1/zero-5 status=noxfer &
dd if=/dev/zero of=/fs/sdi1/zero-5 status=noxfer &
dd if=/dev/zero of=/fs/sdk1/zero-5 status=noxfer &
dd if=/dev/zero of=/fs/sdm1/zero-5 status=noxfer &
dd if=/dev/zero of=/fs/sdg1/zero-5 status=noxfer &
dd if=/dev/zero of=/fs/sdl1/zero-5 status=noxfer &
dd if=/dev/zero of=/fs/sdh1/zero-5 status=noxfer &
dd if=/dev/zero of=/fs/sde1/zero-5 status=noxfer &
dd if=/dev/zero of=/fs/sdf1/zero-5 status=noxfer &
dd if=/dev/zero of=/fs/sdc1/zero-5 status=noxfer &
dd if=/dev/zero of=/fs/sdb1/zero-6 status=noxfer &
dd if=/dev/zero of=/fs/sdj1/zero-6 status=noxfer &
dd if=/dev/zero of=/fs/sdi1/zero-6 status=noxfer &
dd if=/dev/zero of=/fs/sdk1/zero-6 status=noxfer &
dd if=/dev/zero of=/fs/sdm1/zero-6 status=noxfer &
dd if=/dev/zero of=/fs/sdg1/zero-6 status=noxfer &
dd if=/dev/zero of=/fs/sdl1/zero-6 status=noxfer &
dd if=/dev/zero of=/fs/sdh1/zero-6 status=noxfer &
dd if=/dev/zero of=/fs/sde1/zero-6 status=noxfer &
dd if=/dev/zero of=/fs/sdf1/zero-6 status=noxfer &
dd if=/dev/zero of=/fs/sdc1/zero-6 status=noxfer &
dd if=/dev/zero of=/fs/sdb1/zero-7 status=noxfer &
dd if=/dev/zero of=/fs/sdj1/zero-7 status=noxfer &
dd if=/dev/zero of=/fs/sdi1/zero-7 status=noxfer &
dd if=/dev/zero of=/fs/sdk1/zero-7 status=noxfer &
dd if=/dev/zero of=/fs/sdm1/zero-7 status=noxfer &
dd if=/dev/zero of=/fs/sdg1/zero-7 status=noxfer &
dd if=/dev/zero of=/fs/sdl1/zero-7 status=noxfer &
dd if=/dev/zero of=/fs/sdh1/zero-7 status=noxfer &
dd if=/dev/zero of=/fs/sde1/zero-7 status=noxfer &
dd if=/dev/zero of=/fs/sdf1/zero-7 status=noxfer &
dd if=/dev/zero of=/fs/sdc1/zero-7 status=noxfer &
dd if=/dev/zero of=/fs/sdb1/zero-8 status=noxfer &
dd if=/dev/zero of=/fs/sdj1/zero-8 status=noxfer &
dd if=/dev/zero of=/fs/sdi1/zero-8 status=noxfer &
dd if=/dev/zero of=/fs/sdk1/zero-8 status=noxfer &
dd if=/dev/zero of=/fs/sdm1/zero-8 status=noxfer &
dd if=/dev/zero of=/fs/sdg1/zero-8 status=noxfer &
dd if=/dev/zero of=/fs/sdl1/zero-8 status=noxfer &
dd if=/dev/zero of=/fs/sdh1/zero-8 status=noxfer &
dd if=/dev/zero of=/fs/sde1/zero-8 status=noxfer &
dd if=/dev/zero of=/fs/sdf1/zero-8 status=noxfer &
dd if=/dev/zero of=/fs/sdc1/zero-8 status=noxfer &
dd if=/dev/zero of=/fs/sdb1/zero-9 status=noxfer &
dd if=/dev/zero of=/fs/sdj1/zero-9 status=noxfer &
dd if=/dev/zero of=/fs/sdi1/zero-9 status=noxfer &
dd if=/dev/zero of=/fs/sdk1/zero-9 status=noxfer &
dd if=/dev/zero of=/fs/sdm1/zero-9 status=noxfer &
dd if=/dev/zero of=/fs/sdg1/zero-9 status=noxfer &
dd if=/dev/zero of=/fs/sdl1/zero-9 status=noxfer &
dd if=/dev/zero of=/fs/sdh1/zero-9 status=noxfer &
dd if=/dev/zero of=/fs/sde1/zero-9 status=noxfer &
dd if=/dev/zero of=/fs/sdf1/zero-9 status=noxfer &
dd if=/dev/zero of=/fs/sdc1/zero-9 status=noxfer &
dd if=/dev/zero of=/fs/sdb1/zero-10 status=noxfer &
dd if=/dev/zero of=/fs/sdj1/zero-10 status=noxfer &
dd if=/dev/zero of=/fs/sdi1/zero-10 status=noxfer &
dd if=/dev/zero of=/fs/sdk1/zero-10 status=noxfer &
dd if=/dev/zero of=/fs/sdm1/zero-10 status=noxfer &
dd if=/dev/zero of=/fs/sdg1/zero-10 status=noxfer &
dd if=/dev/zero of=/fs/sdl1/zero-10 status=noxfer &
dd if=/dev/zero of=/fs/sdh1/zero-10 status=noxfer &
dd if=/dev/zero of=/fs/sde1/zero-10 status=noxfer &
dd if=/dev/zero of=/fs/sdf1/zero-10 status=noxfer &
dd if=/dev/zero of=/fs/sdc1/zero-10 status=noxfer &
sleep 289
killall -9 dd
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