FYI, we noticed the below changes on
git://git.kernel.org/pub/scm/linux/kernel/git/luto/linux.git x86/entry
commit f04e05b81e4d9ae88bee379f12176f551a24394a ("x86_64,entry: Use sysret to
return to userspace when possible")
f2ee9bebb99dd4a4 f04e05b81e4d9ae88bee379f12 testbox/testcase/testparams
---------------- --------------------------
%stddev %change %stddev
\ | \
24.09 ± 4% -62.7% 8.99 ± 3%
lkp-wsx02/aim9/performance-300s-creat-clo
24.09 -62.7% 8.99 GEO-MEAN time.user_time
f2ee9bebb99dd4a4 f04e05b81e4d9ae88bee379f12
---------------- --------------------------
1571 ± 1% -13.5% 1359 ± 0%
lkp-wsx02/aim9/performance-300s-creat-clo
1571 -13.5% 1359 GEO-MEAN vmstat.system.cs
f2ee9bebb99dd4a4 f04e05b81e4d9ae88bee379f12
---------------- --------------------------
276 ± 0% +5.5% 291 ± 0%
lkp-wsx02/aim9/performance-300s-creat-clo
276 +5.5% 291 GEO-MEAN time.system_time
f2ee9bebb99dd4a4 f04e05b81e4d9ae88bee379f12
---------------- -------------------------- ---------------------------
430 ± 36% -36.0% 275 ± 39%
lkp-wsx02/aim9/performance-300s-creat-clo
430 -36.0% 275 GEO-MEAN
sched_debug.cpu#38.ttwu_count
f2ee9bebb99dd4a4 f04e05b81e4d9ae88bee379f12
---------------- --------------------------
52761811 ± 29% -54.7% 23885493 ± 11%
lkp-wsx02/aim9/performance-300s-creat-clo
52761811 -54.7% 23885493 GEO-MEAN cpuidle.C1E-NHM.time
f2ee9bebb99dd4a4 f04e05b81e4d9ae88bee379f12
---------------- --------------------------
21939 ± 8% +42.6% 31283 ± 23%
lkp-wsx02/aim9/performance-300s-creat-clo
21939 +42.6% 31283 GEO-MEAN
numa-meminfo.node1.SUnreclaim
f2ee9bebb99dd4a4 f04e05b81e4d9ae88bee379f12
---------------- --------------------------
5484 ± 8% +40.3% 7694 ± 22%
lkp-wsx02/aim9/performance-300s-creat-clo
5484 +40.3% 7694 GEO-MEAN
numa-vmstat.node1.nr_slab_unreclaimable
f2ee9bebb99dd4a4 f04e05b81e4d9ae88bee379f12
---------------- --------------------------
34004 ± 2% +69.9% 57781 ± 4%
lkp-wsx02/aim9/performance-300s-creat-clo
34004 +69.9% 57781 GEO-MEAN
slabinfo.kmalloc-256.active_objs
f2ee9bebb99dd4a4 f04e05b81e4d9ae88bee379f12
---------------- --------------------------
1075 ± 2% +68.8% 1815 ± 4%
lkp-wsx02/aim9/performance-300s-creat-clo
1074 +68.8% 1814 GEO-MEAN
slabinfo.kmalloc-256.active_slabs
f2ee9bebb99dd4a4 f04e05b81e4d9ae88bee379f12
---------------- --------------------------
1075 ± 2% +68.8% 1815 ± 4%
lkp-wsx02/aim9/performance-300s-creat-clo
1074 +68.8% 1814 GEO-MEAN
slabinfo.kmalloc-256.num_slabs
f2ee9bebb99dd4a4 f04e05b81e4d9ae88bee379f12
---------------- --------------------------
34415 ± 2% +68.8% 58099 ± 4%
lkp-wsx02/aim9/performance-300s-creat-clo
34415 +68.8% 58099 GEO-MEAN
slabinfo.kmalloc-256.num_objs
f2ee9bebb99dd4a4 f04e05b81e4d9ae88bee379f12
---------------- --------------------------
32500 ± 7% +31.0% 42586 ± 17%
lkp-wsx02/aim9/performance-300s-creat-clo
32500 +31.0% 42586 GEO-MEAN numa-meminfo.node1.Slab
f2ee9bebb99dd4a4 f04e05b81e4d9ae88bee379f12
---------------- --------------------------
73657 ± 1% -23.4% 56388 ± 3%
lkp-wsx02/aim9/performance-300s-creat-clo
73657 -23.4% 56388 GEO-MEAN softirqs.RCU
f2ee9bebb99dd4a4 f04e05b81e4d9ae88bee379f12
---------------- --------------------------
10427 ± 14% -16.8% 8675 ± 6%
lkp-wsx02/aim9/performance-300s-creat-clo
10427 -16.8% 8675 GEO-MEAN
sched_debug.cfs_rq[0]:/.exec_clock
f2ee9bebb99dd4a4 f04e05b81e4d9ae88bee379f12
---------------- --------------------------
24242 ± 8% +18.4% 28696 ± 12%
lkp-wsx02/aim9/performance-300s-creat-clo
24242 +18.4% 28696 GEO-MEAN numa-meminfo.node3.Active
f2ee9bebb99dd4a4 f04e05b81e4d9ae88bee379f12
---------------- --------------------------
2076 ± 7% +12.1% 2328 ± 2%
lkp-wsx02/aim9/performance-300s-creat-clo
2076 +12.1% 2327 GEO-MEAN
numa-meminfo.node2.KernelStack
f2ee9bebb99dd4a4 f04e05b81e4d9ae88bee379f12
---------------- --------------------------
1139198 ± 5% -6.6% 1063912 ± 0%
lkp-wsx02/aim9/performance-300s-creat-clo
1139198 -6.6% 1063912 GEO-MEAN proc-vmstat.pgfault
lkp-wsx02: Westmere-EX
Memory: 128G
time.user_time
26 ++-----------------*----------------*--------*-------------------------+
| .*..*... .*..*. *..*..*.. .. .*. .*..*.. .*..*..|
24 *+ *. * *. *...*. .. *
22 ++ * |
| |
20 ++ |
18 ++ |
| |
16 ++ |
14 ++ |
| |
12 ++ |
10 ++ |
O O O O O O O O O O |
8 ++-O------O--O---------O--------O---O--O--O--O------------O------------+
time.system_time
294 ++--------------------------------------------------------------------+
292 ++ O O O O O O O |
O O O O O O O O O O O O O |
290 ++ |
288 ++ |
| |
286 ++ |
284 ++ |
282 ++ |
| |
280 ++ |
278 ++ *.. |
*.. ..*.. .*.. *.. .*..*.. .. . .*
276 ++ *..*. *..*..*..*..*...*. .. *...*. *..* *..*. |
274 ++---------------------------------*----------------------------------+
softirqs.RCU
80000 ++------------------------------------------------------------------+
| |
75000 ++ ..*..*..*.. .*.. .*.. *.. |
*..*..*..*.. .*. *..*.. .*..*. *.. .. .. *..*..*
| *. *. * * |
70000 ++ |
| |
65000 ++ |
| |
60000 ++ O |
| |
| O O O O O O O |
55000 O+ O O O O O O O O O O O |
| |
50000 ++------------------------------------------------------------------+
slabinfo.kmalloc-256.active_objs
70000 ++------------------------------------------------------------------+
| |
65000 ++ O O |
60000 ++ O O O O O O O O |
O O O O O O O O |
55000 ++ |
| O O |
50000 ++ |
| |
45000 ++ |
40000 ++ |
| .*.. |
35000 ++.*.. .*. *.. *..*.. .*.. .*..*... .*.. .*..*
*. *. . .. *..*..*. *..*. *. *..*. |
30000 ++-----------------*------------------------------------------------+
slabinfo.kmalloc-256.num_objs
70000 ++------------------------------------------------------------------+
| O |
65000 ++ O |
60000 ++ O O O O O O O O O |
O O O O O O O |
55000 ++ |
| O O |
50000 ++ |
| |
45000 ++ |
40000 ++ |
| .*.. |
35000 *+.*.. .*. *... .*..*.. .*.. .*..*...*..*..*.. .*..*
| *. *. *..*..*. *..*. *. |
30000 ++------------------------------------------------------------------+
slabinfo.kmalloc-256.active_slabs
2200 ++-------------------------------------------------------------------+
| O |
2000 ++ O O O |
| O O O O O O O O O |
1800 O+ O O O O |
| O |
1600 ++ O |
| |
1400 ++ |
| |
1200 ++ *...*.. |
*..*.. .. *.. .*..*.. .*...*..*.. .*..*..*..*...*.. .*..*
1000 ++ * *. *. *..*. *. |
| |
800 ++-------------------------------------------------------------------+
slabinfo.kmalloc-256.num_slabs
2200 ++-------------------------------------------------------------------+
| O |
2000 ++ O O O |
| O O O O O O O O O |
1800 O+ O O O O |
| O |
1600 ++ O |
| |
1400 ++ |
| |
1200 ++ *...*.. |
*..*.. .. *.. .*..*.. .*...*..*.. .*..*..*..*...*.. .*..*
1000 ++ * *. *. *..*. *. |
| |
800 ++-------------------------------------------------------------------+
[*] 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.
---
testcase: aim9
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
default_watchdogs:
watch-oom:
watchdog:
cpufreq_governor:
- performance
commit: 7c130ce86d3169fb078ea36d2351a9bc5394f7bf
model: Westmere-EX
memory: 128G
nr_cpu: 80
nr_hdd_partitions: 0
hdd_partitions:
swap_partitions:
rootfs_partition:
aim9:
testtime: 300s
test:
- creat-clo
enqueue_time: 2014-11-05 16:29:36.050246728 +08:00
testbox: lkp-wsx02
tbox_group: lkp-wsx02
kconfig: x86_64-rhel
head_commit: 7c130ce86d3169fb078ea36d2351a9bc5394f7bf
base_commit: 0df1f2487d2f0d04703f142813d53615d62a1da4
branch: linux-devel/devel-hourly-2014110522
kernel:
"/kernel/x86_64-rhel/7c130ce86d3169fb078ea36d2351a9bc5394f7bf/vmlinuz-3.18.0-rc3-wl-ath-g7c130ce"
user: lkp
queue: cyclic
rootfs: debian-x86_64.cgz
result_root:
"/result/lkp-wsx02/aim9/performance-300s-creat-clo/debian-x86_64.cgz/x86_64-rhel/7c130ce86d3169fb078ea36d2351a9bc5394f7bf/0"
job_file:
"/lkp/scheduled/lkp-wsx02/cyclic_aim9-performance-300s-creat-clo-x86_64-rhel-HEAD-7c130ce86d3169fb078ea36d2351a9bc5394f7bf-0.yaml"
dequeue_time: 2014-11-06 01:16:18.253589953 +08:00
job_state: finished
loadavg: 0.91 0.72 0.34 1/633 13360
start_time: '1415207896'
end_time: '1415208196'
version: "/lkp/lkp/.src-20141105-221953"
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/cpu16/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu17/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu18/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu19/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu2/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu20/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu21/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu22/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu23/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu24/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu25/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu26/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu27/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu28/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu29/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu3/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu30/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu31/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu32/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu33/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu34/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu35/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu36/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu37/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu38/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu39/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu4/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu40/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu41/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu42/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu43/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu44/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu45/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu46/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu47/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu48/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu49/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu5/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu50/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu51/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu52/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu53/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu54/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu55/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu56/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu57/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu58/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu59/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu6/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu60/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu61/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu62/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu63/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu64/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu65/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu66/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu67/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu68/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu69/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu7/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu70/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu71/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu72/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu73/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu74/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu75/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu76/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu77/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu78/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu79/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu8/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu9/cpufreq/scaling_governor
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