[PATCH] psi: cgroup support

From: Johannes Weiner
Date: Fri Oct 26 2018 - 18:06:31 EST

Comparison
==========
initial initial last penup first
good-v4.19 bad-92b419289cee good-eb414681 good-95f9ab2d bad-2ce7135a
Min 1 1.2980 ( 0.00%) 1.2950 ( 0.23%) 1.2870 ( 0.85%) 1.3100 ( -0.92%) 1.3190 ( -1.62%)
Min 3 3.8480 ( 0.00%) 4.0640 ( -5.61%) 3.8070 ( 1.07%) 3.8530 ( -0.13%) 4.1750 ( -8.50%)
Min 5 6.7420 ( 0.00%) 8.1480 ( -20.85%) 6.8010 ( -0.88%) 6.7740 ( -0.47%) 7.3370 ( -8.83%)
Min 7 9.7230 ( 0.00%) 10.2490 ( -5.41%) 9.7840 ( -0.63%) 9.8940 ( -1.76%) 10.6890 ( -9.94%)
Min 12 16.2810 ( 0.00%) 17.6470 ( -8.39%) 16.1740 ( 0.66%) 16.2390 ( 0.26%) 17.1260 ( -5.19%)
Min 18 25.2050 ( 0.00%) 25.6510 ( -1.77%) 25.4950 ( -1.15%) 25.4130 ( -0.83%) 25.5330 ( -1.30%)
Min 24 31.7720 ( 0.00%) 29.4380 ( 7.35%) 33.3800 ( -5.06%) 31.2400 ( 1.67%) 31.4640 ( 0.97%)
Min 30 37.0100 ( 0.00%) 37.6760 ( -1.80%) 33.7630 ( 8.77%) 37.5890 ( -1.56%) 33.2980 ( 10.03%)
Min 32 40.0150 ( 0.00%) 39.9460 ( 0.17%) 37.5790 ( 6.09%) 37.7580 ( 5.64%) 38.8230 ( 2.98%)
Amean 1 1.3153 ( 0.00%) 1.3530 ( -2.86%) 1.3133 ( 0.15%) 1.3217 ( -0.48%) 1.3243 ( -0.68%)
Amean 3 3.8670 ( 0.00%) 4.1097 * -6.28%* 3.8597 ( 0.19%) 3.8943 ( -0.71%) 4.2130 * -8.95%*
Amean 5 6.8563 ( 0.00%) 8.3113 * -21.22%* 6.9197 ( -0.92%) 6.8630 ( -0.10%) 7.5630 * -10.31%*
Amean 7 9.8650 ( 0.00%) 10.5607 * -7.05%* 9.9627 ( -0.99%) 9.9177 ( -0.53%) 10.7880 * -9.36%*
Amean 12 16.5540 ( 0.00%) 18.2850 * -10.46%* 16.7513 ( -1.19%) 16.3700 ( 1.11%) 18.1283 * -9.51%*
Amean 18 26.0390 ( 0.00%) 27.4333 ( -5.35%) 27.0223 ( -3.78%) 25.8067 ( 0.89%) 27.2333 ( -4.59%)
Amean 24 32.8650 ( 0.00%) 33.0093 ( -0.44%) 34.6167 ( -5.33%) 32.7020 ( 0.50%) 34.9150 ( -6.24%)
Amean 30 39.5653 ( 0.00%) 41.0643 ( -3.79%) 36.6733 ( 7.31%) 39.4050 ( 0.41%) 38.1273 ( 3.63%)
Amean 32 40.8177 ( 0.00%) 42.1383 ( -3.24%) 39.1487 ( 4.09%) 41.7743 ( -2.34%) 39.4193 * 3.43%*
Stddev 1 0.0158 ( 0.00%) 0.0730 (-361.51%) 0.0247 ( -56.14%) 0.0102 ( 35.44%) 0.0061 ( 61.38%)
Stddev 3 0.0271 ( 0.00%) 0.0397 ( -46.65%) 0.0627 (-131.53%) 0.0575 (-112.38%) 0.0330 ( -22.06%)
Stddev 5 0.1491 ( 0.00%) 0.1744 ( -16.95%) 0.1134 ( 23.94%) 0.0771 ( 48.30%) 0.2126 ( -42.57%)
Stddev 7 0.1650 ( 0.00%) 0.2780 ( -68.48%) 0.1663 ( -0.80%) 0.0257 ( 84.43%) 0.0889 ( 46.12%)
Stddev 12 0.2395 ( 0.00%) 0.5652 (-135.95%) 0.5726 (-139.03%) 0.1626 ( 32.11%) 0.8698 (-263.10%)
Stddev 18 0.8499 ( 0.00%) 1.5949 ( -87.65%) 1.3650 ( -60.60%) 0.3799 ( 55.31%) 1.5393 ( -81.11%)
Stddev 24 1.2105 ( 0.00%) 3.3274 (-174.88%) 1.5403 ( -27.25%) 1.2683 ( -4.78%) 3.1545 (-160.60%)
Stddev 30 2.4625 ( 0.00%) 2.9472 ( -19.69%) 2.5228 ( -2.45%) 1.5773 ( 35.95%) 5.3969 (-119.17%)
Stddev 32 0.9572 ( 0.00%) 2.4088 (-151.66%) 1.5982 ( -66.97%) 4.3986 (-359.54%) 0.5216 ( 45.50%)
CoeffVar 1 1.2029 ( 0.00%) 5.3969 (-348.67%) 1.8811 ( -56.38%) 0.7728 ( 35.75%) 0.4614 ( 61.64%)
CoeffVar 3 0.7001 ( 0.00%) 0.9661 ( -37.99%) 1.6241 (-131.97%) 1.4765 (-110.89%) 0.7844 ( -12.03%)
CoeffVar 5 2.1749 ( 0.00%) 2.0982 ( 3.53%) 1.6392 ( 24.63%) 1.1233 ( 48.35%) 2.8110 ( -29.25%)
CoeffVar 7 1.6725 ( 0.00%) 2.6322 ( -57.38%) 1.6694 ( 0.18%) 0.2591 ( 84.51%) 0.8241 ( 50.73%)
CoeffVar 12 1.4470 ( 0.00%) 3.0910 (-113.61%) 3.4180 (-136.21%) 0.9934 ( 31.35%) 4.7978 (-231.56%)
CoeffVar 18 3.2640 ( 0.00%) 5.8138 ( -78.12%) 5.0512 ( -54.75%) 1.4719 ( 54.91%) 5.6523 ( -73.17%)
CoeffVar 24 3.6832 ( 0.00%) 10.0801 (-173.68%) 4.4495 ( -20.81%) 3.8785 ( -5.30%) 9.0349 (-145.30%)
CoeffVar 30 6.2238 ( 0.00%) 7.1770 ( -15.32%) 6.8792 ( -10.53%) 4.0027 ( 35.69%) 14.1550 (-127.43%)
CoeffVar 32 2.3450 ( 0.00%) 5.7165 (-143.78%) 4.0825 ( -74.09%) 10.5295 (-349.02%) 1.3233 ( 43.57%)
Max 1 1.3290 ( 0.00%) 1.4350 ( -7.98%) 1.3360 ( -0.53%) 1.3290 ( 0.00%) 1.3310 ( -0.15%)
Max 3 3.8980 ( 0.00%) 4.1360 ( -6.11%) 3.9290 ( -0.80%) 3.9600 ( -1.59%) 4.2350 ( -8.65%)
Max 5 7.0250 ( 0.00%) 8.4950 ( -20.93%) 7.0270 ( -0.03%) 6.9090 ( 1.65%) 7.7590 ( -10.45%)
Max 7 10.0460 ( 0.00%) 10.7830 ( -7.34%) 10.1130 ( -0.67%) 9.9450 ( 1.01%) 10.8610 ( -8.11%)
Max 12 16.7290 ( 0.00%) 18.7230 ( -11.92%) 17.3190 ( -3.53%) 16.5520 ( 1.06%) 18.6840 ( -11.69%)
Max 18 26.9040 ( 0.00%) 28.7260 ( -6.77%) 28.1230 ( -4.53%) 26.1710 ( 2.72%) 28.5320 ( -6.05%)
Max 24 34.1660 ( 0.00%) 36.0220 ( -5.43%) 36.3420 ( -6.37%) 33.5080 ( 1.93%) 37.6500 ( -10.20%)
Max 30 41.9230 ( 0.00%) 43.0330 ( -2.65%) 38.2390 ( 8.79%) 40.4330 ( 3.55%) 43.9530 ( -4.84%)
Max 32 41.8770 ( 0.00%) 44.7170 ( -6.78%) 40.7740 ( 2.63%) 46.4750 ( -10.98%) 39.7910 ( 4.98%)
BAmean-50 1 1.3085 ( 0.00%) 1.3120 ( -0.27%) 1.3020 ( 0.50%) 1.3180 ( -0.73%) 1.3210 ( -0.96%)
BAmean-50 3 3.8515 ( 0.00%) 4.0965 ( -6.36%) 3.8250 ( 0.69%) 3.8615 ( -0.26%) 4.2020 ( -9.10%)
BAmean-50 5 6.7720 ( 0.00%) 8.2195 ( -21.37%) 6.8660 ( -1.39%) 6.8400 ( -1.00%) 7.4650 ( -10.23%)
BAmean-50 7 9.7745 ( 0.00%) 10.4495 ( -6.91%) 9.8875 ( -1.16%) 9.9040 ( -1.32%) 10.7515 ( -10.00%)
BAmean-50 12 16.4665 ( 0.00%) 18.0660 ( -9.71%) 16.4675 ( -0.01%) 16.2790 ( 1.14%) 17.8505 ( -8.40%)
BAmean-50 18 25.6065 ( 0.00%) 26.7870 ( -4.61%) 26.4720 ( -3.38%) 25.6245 ( -0.07%) 26.5840 ( -3.82%)
BAmean-50 24 32.2145 ( 0.00%) 31.5030 ( 2.21%) 33.7540 ( -4.78%) 32.2990 ( -0.26%) 33.5475 ( -4.14%)
BAmean-50 30 38.3865 ( 0.00%) 40.0800 ( -4.41%) 35.8905 ( 6.50%) 38.8910 ( -1.31%) 35.2145 ( 8.26%)
BAmean-50 32 40.2880 ( 0.00%) 40.8490 ( -1.39%) 38.3360 ( 4.85%) 39.4240 ( 2.14%) 39.2335 ( 2.62%)
BAmean-95 1 1.3153 ( 0.00%) 1.3530 ( -2.86%) 1.3133 ( 0.15%) 1.3217 ( -0.48%) 1.3243 ( -0.68%)
BAmean-95 3 3.8670 ( 0.00%) 4.1097 ( -6.28%) 3.8597 ( 0.19%) 3.8943 ( -0.71%) 4.2130 ( -8.95%)
BAmean-95 5 6.8563 ( 0.00%) 8.3113 ( -21.22%) 6.9197 ( -0.92%) 6.8630 ( -0.10%) 7.5630 ( -10.31%)
BAmean-95 7 9.8650 ( 0.00%) 10.5607 ( -7.05%) 9.9627 ( -0.99%) 9.9177 ( -0.53%) 10.7880 ( -9.36%)
BAmean-95 12 16.5540 ( 0.00%) 18.2850 ( -10.46%) 16.7513 ( -1.19%) 16.3700 ( 1.11%) 18.1283 ( -9.51%)
BAmean-95 18 26.0390 ( 0.00%) 27.4333 ( -5.35%) 27.0223 ( -3.78%) 25.8067 ( 0.89%) 27.2333 ( -4.59%)
BAmean-95 24 32.8650 ( 0.00%) 33.0093 ( -0.44%) 34.6167 ( -5.33%) 32.7020 ( 0.50%) 34.9150 ( -6.24%)
BAmean-95 30 39.5653 ( 0.00%) 41.0643 ( -3.79%) 36.6733 ( 7.31%) 39.4050 ( 0.41%) 38.1273 ( 3.63%)
BAmean-95 32 40.8177 ( 0.00%) 42.1383 ( -3.24%) 39.1487 ( 4.09%) 41.7743 ( -2.34%) 39.4193 ( 3.43%)
BAmean-99 1 1.3153 ( 0.00%) 1.3530 ( -2.86%) 1.3133 ( 0.15%) 1.3217 ( -0.48%) 1.3243 ( -0.68%)
BAmean-99 3 3.8670 ( 0.00%) 4.1097 ( -6.28%) 3.8597 ( 0.19%) 3.8943 ( -0.71%) 4.2130 ( -8.95%)
BAmean-99 5 6.8563 ( 0.00%) 8.3113 ( -21.22%) 6.9197 ( -0.92%) 6.8630 ( -0.10%) 7.5630 ( -10.31%)
BAmean-99 7 9.8650 ( 0.00%) 10.5607 ( -7.05%) 9.9627 ( -0.99%) 9.9177 ( -0.53%) 10.7880 ( -9.36%)
BAmean-99 12 16.5540 ( 0.00%) 18.2850 ( -10.46%) 16.7513 ( -1.19%) 16.3700 ( 1.11%) 18.1283 ( -9.51%)
BAmean-99 18 26.0390 ( 0.00%) 27.4333 ( -5.35%) 27.0223 ( -3.78%) 25.8067 ( 0.89%) 27.2333 ( -4.59%)
BAmean-99 24 32.8650 ( 0.00%) 33.0093 ( -0.44%) 34.6167 ( -5.33%) 32.7020 ( 0.50%) 34.9150 ( -6.24%)
BAmean-99 30 39.5653 ( 0.00%) 41.0643 ( -3.79%) 36.6733 ( 7.31%) 39.4050 ( 0.41%) 38.1273 ( 3.63%)
BAmean-99 32 40.8177 ( 0.00%) 42.1383 ( -3.24%) 39.1487 ( 4.09%) 41.7743 ( -2.34%) 39.4193 ( 3.43%)

Git log
=======
git bisect start
# good: [84df9525b0c27f3ebc2ebb1864fa62a97fdedb7d] Linux 4.19
git bisect good 84df9525b0c27f3ebc2ebb1864fa62a97fdedb7d
# bad: [92b419289ceecdd1eae03114928913f298b84327] Merge tag 'riscv-for-linus-4.20-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/palmer/riscv-linux
git bisect bad 92b419289ceecdd1eae03114928913f298b84327
# good: [84df9525b0c27f3ebc2ebb1864fa62a97fdedb7d] Linux 4.19
git bisect good 84df9525b0c27f3ebc2ebb1864fa62a97fdedb7d
# good: [26873acacbdbb4e4b444f5dd28dcc4853f0e8ba2] Merge tag 'driver-core-4.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
git bisect good 26873acacbdbb4e4b444f5dd28dcc4853f0e8ba2
# bad: [738b04fba18d35cd352b7b15afefb8a7b798648e] Merge tag 'staging-4.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
git bisect bad 738b04fba18d35cd352b7b15afefb8a7b798648e
# good: [f2bfc71aee75feff33ca659322b72ffeed5a243d] Merge tag 'drm-intel-next-fixes-2018-10-18' of git://anongit.freedesktop.org/drm/drm-intel into drm-next
git bisect good f2bfc71aee75feff33ca659322b72ffeed5a243d
# bad: [345671ea0f9258f410eb057b9ced9cefbbe5dc78] Merge branch 'akpm' (patches from Andrew)
git bisect bad 345671ea0f9258f410eb057b9ced9cefbbe5dc78
# good: [033078a9afe504ac9e615d10c4b35d634450b637] Merge tag '4.20-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6
git bisect good 033078a9afe504ac9e615d10c4b35d634450b637
# good: [685f7e4f161425b137056abe35ba8ef7b669d83d] Merge tag 'powerpc-4.20-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
git bisect good 685f7e4f161425b137056abe35ba8ef7b669d83d
# bad: [d3035be4ce2345d98633a45f93a74e526e94b802] mm: calculate deferred pages after skipping mirrored memory
git bisect bad d3035be4ce2345d98633a45f93a74e526e94b802
# good: [95f9ab2d596e8cbb388315e78c82b9a131bf2928] mm: workingset: don't drop refault information prematurely
git bisect good 95f9ab2d596e8cbb388315e78c82b9a131bf2928
# bad: [f682a97a00591def7cefbb5003dc04045028e405] mm: provide kernel parameter to allow disabling page init poisoning
git bisect bad f682a97a00591def7cefbb5003dc04045028e405
# bad: [c3df29d13044d885695067fa0b1386824942557a] mm/swap.c: remove duplicated include
git bisect bad c3df29d13044d885695067fa0b1386824942557a
# good: [eb414681d5a07d28d2ff90dc05f69ec6b232ebd2] psi: pressure stall information for CPU, memory, and IO
git bisect good eb414681d5a07d28d2ff90dc05f69ec6b232ebd2
# bad: [68d48e6a2df575b935edd420396c3cb8b6aa6ad3] mm: workingset: add vmstat counter for shadow nodes
git bisect bad 68d48e6a2df575b935edd420396c3cb8b6aa6ad3
# bad: [505802a53510e54ad5fbbd655a68893df83bfb91] mm: workingset: use cheaper __inc_lruvec_state in irqsafe node reclaim
git bisect bad 505802a53510e54ad5fbbd655a68893df83bfb91
# bad: [2ce7135adc9ad081aa3c49744144376ac74fea60] psi: cgroup support
git bisect bad 2ce7135adc9ad081aa3c49744144376ac74fea60
# first bad commit: [2ce7135adc9ad081aa3c49744144376ac74fea60] psi: cgroup support

--
Mel Gorman
SUSE Labs