[LKP] [mm] b191f9b106e: -8.8% netperf.time.minor_page_faults
From: Huang Ying
Date: Tue Mar 31 2015 - 23:23:43 EST
FYI, we noticed the below changes on
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
commit b191f9b106ea1a24a711dbebb2925d3313da5852 ("mm: numa: preserve PTE write permissions across a NUMA hinting fault")
testbox/testcase/testparams: lkp-ne02/netperf/performance-300s-200%-TCP_SENDFILE
bea66fbd11af1ca9 b191f9b106ea1a24a711dbebb2
---------------- --------------------------
%stddev %change %stddev
\ | \
13115 Â 0% -8.8% 11968 Â 0% netperf.time.minor_page_faults
65.63 Â 6% -14.6% 56.05 Â 7% netperf.time.user_time
65.63 Â 6% -14.6% 56.05 Â 7% time.user_time
728886 Â 12% -29.2% 516121 Â 25% proc-vmstat.pgalloc_dma32
259 Â 12% -21.8% 203 Â 19% sched_debug.cfs_rq[10]:/.tg_load_contrib
139 Â 26% -40.9% 82 Â 48% sched_debug.cfs_rq[10]:/.blocked_load_avg
1437779 Â 5% -9.7% 1298979 Â 2% sched_debug.cfs_rq[11]:/.max_vruntime
1437779 Â 5% -9.7% 1298979 Â 2% sched_debug.cfs_rq[11]:/.MIN_vruntime
518 Â 37% -52.1% 248 Â 40% sched_debug.cfs_rq[3]:/.tg_load_contrib
117 Â 6% +13.5% 132 Â 9% sched_debug.cfs_rq[3]:/.load
191 Â 28% +71.7% 328 Â 35% sched_debug.cfs_rq[7]:/.tg_load_contrib
306355 Â 47% -33.0% 205153 Â 1% sched_debug.cpu#11.nr_switches
306423 Â 47% -33.0% 205208 Â 1% sched_debug.cpu#11.sched_count
1050 Â 13% +59.2% 1672 Â 18% sched_debug.cpu#15.curr->pid
1020 Â 6% +35.1% 1379 Â 6% sched_debug.cpu#4.curr->pid
1082 Â 18% +44.5% 1563 Â 28% sched_debug.cpu#5.curr->pid
1215 Â 14% -17.6% 1001 Â 7% sched_debug.cpu#8.curr->pid
lkp-ne02: Nehalem-EP
Memory: 5G
netperf.time.minor_page_faults
13400 ++---------------------------------*--------------------------------+
| *.. *.. : |
13200 *+. .. .. *.. .*..*.. : *..*..*..*..*.. .*..*.. |
13000 ++ * *..* *..*. * *..*. *..*
| |
12800 ++ |
| |
12600 ++ |
| |
12400 ++ |
12200 ++ |
| |
12000 O+ O O O O O |
| O O O O O O O O O O O O O O |
11800 ++------------------------------------------------------------------+
[*] bisect-good sample
[O] bisect-bad sample
To reproduce:
apt-get install ruby
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,
Ying Huang
---
testcase: netperf
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:
nfsstat:
cpuidle:
cpufreq-stats:
turbostat:
pmeter:
sched_debug:
interval: 10
default-watchdogs:
watch-oom:
watchdog:
cpufreq_governor: performance
commit: e42391cd048809d903291d07f86ed3934ce138e9
model: Nehalem-EP
memory: 5G
nr_hdd_partitions: 12
hdd_partitions: "/dev/disk/by-id/scsi-35000c5000*part1"
swap_partitions: "/dev/disk/by-id/scsi-SATA_ST3500320NS_9QM6YWTY-part2"
runtime: 300s
nr_threads: 200%
perf-profile:
freq: 800
cluster: cs-localhost
if role server:
netserver:
if role client:
netperf:
test: TCP_SENDFILE
testbox: lkp-ne02
tbox_group: lkp-ne02
kconfig: x86_64-rhel
enqueue_time: 2015-03-31 11:57:48.297146032 +08:00
head_commit: 051d101ddcd268a7429d6892c089c1c0858df20b
base_commit: e42391cd048809d903291d07f86ed3934ce138e9
branch: linux-devel/devel-hourly-2015033109
kernel: "/kernel/x86_64-rhel/e42391cd048809d903291d07f86ed3934ce138e9/vmlinuz-4.0.0-rc6"
user: lkp
queue: cyclic
rootfs: debian-x86_64-2015-02-07.cgz
result_root: "/result/lkp-ne02/netperf/performance-300s-200%-TCP_SENDFILE/debian-x86_64-2015-02-07.cgz/x86_64-rhel/e42391cd048809d903291d07f86ed3934ce138e9/0"
node_roles: server client
job_file: "/lkp/scheduled/lkp-ne02/cyclic_netperf-performance-300s-200%-TCP_SENDFILE-x86_64-rhel-BASE-e42391cd048809d903291d07f86ed3934ce138e9-0-20150331-32956-1uhguoe.yaml"
dequeue_time: 2015-03-31 12:29:34.133136287 +08:00
nr_cpu: "$(nproc)"
max_uptime: 1500
modules_initrd: "/kernel/x86_64-rhel/e42391cd048809d903291d07f86ed3934ce138e9/modules.cgz"
bm_initrd: "/lkp/benchmarks/turbostat.cgz,/lkp/benchmarks/netperf-debian.cgz,/lkp/benchmarks/netperf.cgz"
job_state: finished
loadavg: 34.91 29.35 13.49 1/214 9318
start_time: '1427776206'
end_time: '1427776507'
version: "/lkp/lkp/.src-20150331-104755"
echo performance > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu1/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu10/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu11/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu12/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu13/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu14/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu15/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu2/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu3/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu4/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu5/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu6/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu7/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu8/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu9/cpufreq/scaling_governor
netserver
netperf -t TCP_SENDFILE -c -C -l 300
netperf -t TCP_SENDFILE -c -C -l 300
netperf -t TCP_SENDFILE -c -C -l 300
netperf -t TCP_SENDFILE -c -C -l 300
netperf -t TCP_SENDFILE -c -C -l 300
netperf -t TCP_SENDFILE -c -C -l 300
netperf -t TCP_SENDFILE -c -C -l 300
netperf -t TCP_SENDFILE -c -C -l 300
netperf -t TCP_SENDFILE -c -C -l 300
netperf -t TCP_SENDFILE -c -C -l 300
netperf -t TCP_SENDFILE -c -C -l 300
netperf -t TCP_SENDFILE -c -C -l 300
netperf -t TCP_SENDFILE -c -C -l 300
netperf -t TCP_SENDFILE -c -C -l 300
netperf -t TCP_SENDFILE -c -C -l 300
netperf -t TCP_SENDFILE -c -C -l 300
netperf -t TCP_SENDFILE -c -C -l 300
netperf -t TCP_SENDFILE -c -C -l 300
netperf -t TCP_SENDFILE -c -C -l 300
netperf -t TCP_SENDFILE -c -C -l 300
netperf -t TCP_SENDFILE -c -C -l 300
netperf -t TCP_SENDFILE -c -C -l 300
netperf -t TCP_SENDFILE -c -C -l 300
netperf -t TCP_SENDFILE -c -C -l 300
netperf -t TCP_SENDFILE -c -C -l 300
netperf -t TCP_SENDFILE -c -C -l 300
netperf -t TCP_SENDFILE -c -C -l 300
netperf -t TCP_SENDFILE -c -C -l 300
netperf -t TCP_SENDFILE -c -C -l 300
netperf -t TCP_SENDFILE -c -C -l 300
netperf -t TCP_SENDFILE -c -C -l 300
netperf -t TCP_SENDFILE -c -C -l 300
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