* [LKP] [mm] 721c21c17ab: +11.7% will-it-scale.per_thread_ops
@ 2015-02-03 7:45 Huang Ying
2015-02-03 10:27 ` Will Deacon
0 siblings, 1 reply; 4+ messages in thread
From: Huang Ying @ 2015-02-03 7:45 UTC (permalink / raw)
To: Will Deacon; +Cc: Linus Torvalds, LKML, LKP ML
[-- Attachment #1: Type: text/plain, Size: 5254 bytes --]
FYI, we noticed the below changes on
commit 721c21c17ab958abf19a8fc611c3bd4743680e38 ("mm: mmu_gather: use tlb->end != 0 only for TLB invalidation")
testbox/testcase/testparams: nhm4/will-it-scale/performance-readseek1
v3.19-rc4 721c21c17ab958abf19a8fc611
---------------- --------------------------
%stddev %change %stddev
\ | \
0.56 ± 1% +5.2% 0.59 ± 1% will-it-scale.scalability
1807741 ± 0% +2.3% 1848641 ± 0% will-it-scale.per_thread_ops
740 ± 30% +40.9% 1043 ± 26% sched_debug.cpu#4.ttwu_local
1335 ± 20% +23.7% 1651 ± 17% sched_debug.cpu#4.ttwu_count
506 ± 9% +40.8% 712 ± 1% cpuidle.C1-NHM.usage
120 ± 9% +33.1% 160 ± 11% sched_debug.cpu#7.load
120 ± 9% +26.2% 151 ± 10% sched_debug.cfs_rq[7]:/.load
90 ± 5% -16.2% 75 ± 16% sched_debug.cpu#6.cpu_load[4]
96 ± 7% +16.7% 112 ± 10% sched_debug.cfs_rq[2]:/.runnable_load_avg
testbox/testcase/testparams: nhm4/will-it-scale/performance-pread2
v3.19-rc4 721c21c17ab958abf19a8fc611
---------------- --------------------------
900692 ± 1% +11.7% 1005724 ± 0% will-it-scale.per_thread_ops
28033529 ± 0% -1.2% 27698665 ± 0% will-it-scale.time.voluntary_context_switches
671 ± 22% +40.4% 942 ± 27% sched_debug.cfs_rq[7]:/.blocked_load_avg
802 ± 19% +30.9% 1049 ± 25% sched_debug.cfs_rq[7]:/.tg_load_contrib
44840 ± 6% +15.6% 51846 ± 6% meminfo.DirectMap4k
18284 ± 1% -7.4% 16926 ± 2% vmstat.system.in
378463 ± 0% -1.2% 373746 ± 0% vmstat.system.cs
testbox/testcase/testparams: nhm4/will-it-scale/performance-readseek3
v3.19-rc4 721c21c17ab958abf19a8fc611
---------------- --------------------------
0.55 ± 0% +9.9% 0.60 ± 5% will-it-scale.scalability
1791707 ± 0% +2.9% 1843202 ± 0% will-it-scale.per_thread_ops
187 ± 41% +167.3% 501 ± 23% sched_debug.cfs_rq[0]:/.blocked_load_avg
281 ± 29% +121.3% 622 ± 18% sched_debug.cfs_rq[0]:/.tg_load_contrib
110 ± 9% +25.5% 138 ± 13% sched_debug.cfs_rq[5]:/.load
110 ± 9% +25.9% 138 ± 13% sched_debug.cpu#5.load
178 ± 6% -19.5% 144 ± 16% sched_debug.cpu#4.cpu_load[1]
94 ± 6% +12.9% 107 ± 8% sched_debug.cfs_rq[3]:/.runnable_load_avg
1.78 ± 7% +17.4% 2.09 ± 0% perf-profile.cpu-cycles.put_page.shmem_file_read_iter.new_sync_read.__vfs_read.vfs_read
187 ± 9% -19.1% 152 ± 16% sched_debug.cpu#4.cpu_load[2]
757 ± 5% +10.6% 838 ± 2% slabinfo.kmalloc-2048.active_objs
3064 ± 7% +7.8% 3302 ± 6% sched_debug.cpu#1.curr->pid
5.23 ± 2% +8.8% 5.69 ± 4% perf-profile.cpu-cycles.security_file_permission.rw_verify_area.vfs_read.sys_read.system_call_fastpath
3.23 ± 4% +8.0% 3.48 ± 5% perf-profile.cpu-cycles.copy_page_to_iter_iovec.copy_page_to_iter.shmem_file_read_iter.new_sync_read.__vfs_read
4216 ± 7% +7.5% 4531 ± 5% slabinfo.kmalloc-192.active_objs
nhm4: Nehalem
Memory: 4G
lkp-sbx04: Sandy Bridge-EX
Memory: 64G
will-it-scale.per_thread_ops
1.04e+06 ++---------------------------------------------------------------+
| O O O |
1.02e+06 ++ O O O O O O O O O |
1e+06 O+ O O O O O
| O O O |
980000 ++ |
| |
960000 ++ |
| |
940000 ++ |
920000 ++ |
*.. *..* |
900000 ++ + |
| *...*.. + |
880000 ++--------*------------------------------------------------------+
[*] 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
[-- Attachment #2: job.yaml --]
[-- Type: text/plain, Size: 1753 bytes --]
---
testcase: will-it-scale
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:
- performance
commit: 634b0bd490b7ebd7a054cea4f7e0d25748bde678
model: Nehalem
nr_cpu: 8
memory: 4G
hdd_partitions: "/dev/disk/by-id/ata-WDC_WD1003FBYZ-010FB0_WD-WCAW36812041-part1"
swap_partitions: "/dev/disk/by-id/ata-WDC_WD1003FBYZ-010FB0_WD-WCAW36812041-part2"
rootfs_partition: "/dev/disk/by-id/ata-WDC_WD1003FBYZ-010FB0_WD-WCAW36812041-part3"
netconsole_port: 6649
perf-profile:
freq: 800
will-it-scale:
test:
- pread2
testbox: nhm4
tbox_group: nhm4
kconfig: x86_64-rhel
enqueue_time: 2015-01-16 19:39:12.848821511 +08:00
head_commit: 634b0bd490b7ebd7a054cea4f7e0d25748bde678
base_commit: eaa27f34e91a14cdceed26ed6c6793ec1d186115
branch: next/master
kernel: "/kernel/x86_64-rhel/634b0bd490b7ebd7a054cea4f7e0d25748bde678/vmlinuz-3.19.0-rc4-next-20150116-g634b0bd"
user: lkp
queue: cyclic
rootfs: debian-x86_64-2015-01-13.cgz
result_root: "/result/nhm4/will-it-scale/performance-pread2/debian-x86_64-2015-01-13.cgz/x86_64-rhel/634b0bd490b7ebd7a054cea4f7e0d25748bde678/0"
job_file: "/lkp/scheduled/nhm4/cyclic_will-it-scale-performance-pread2-x86_64-rhel-HEAD-634b0bd490b7ebd7a054cea4f7e0d25748bde678-0.yaml"
dequeue_time: 2015-01-17 02:30:35.332402855 +08:00
job_state: finished
loadavg: 5.12 3.21 1.34 1/123 6702
start_time: '1421433067'
end_time: '1421433372'
version: "/lkp/lkp/.src-20150116-113525"
[-- Attachment #3: reproduce --]
[-- Type: text/plain, Size: 31 bytes --]
./runtest.py pread2 32 1 4 6 8
[-- Attachment #4: Type: text/plain, Size: 89 bytes --]
_______________________________________________
LKP mailing list
LKP@linux.intel.com
\r
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [LKP] [mm] 721c21c17ab: +11.7% will-it-scale.per_thread_ops
2015-02-03 7:45 [LKP] [mm] 721c21c17ab: +11.7% will-it-scale.per_thread_ops Huang Ying
@ 2015-02-03 10:27 ` Will Deacon
2015-02-05 5:41 ` Huang Ying
0 siblings, 1 reply; 4+ messages in thread
From: Will Deacon @ 2015-02-03 10:27 UTC (permalink / raw)
To: Huang Ying; +Cc: Linus Torvalds, LKML, LKP ML
On Tue, Feb 03, 2015 at 07:45:04AM +0000, Huang Ying wrote:
> FYI, we noticed the below changes on
>
> commit 721c21c17ab958abf19a8fc611c3bd4743680e38 ("mm: mmu_gather: use
> tlb->end != 0 only for TLB invalidation")
Is this delta relative to the previous commit, or something else? The
commit in question restored some 3.18 behaviour on task exit (namely
doing a fullmm TLB flush), so it would be interesting to know if you
see the same change against 3.18.
Will
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [LKP] [mm] 721c21c17ab: +11.7% will-it-scale.per_thread_ops
2015-02-03 10:27 ` Will Deacon
@ 2015-02-05 5:41 ` Huang Ying
2015-02-12 4:56 ` Huang Ying
0 siblings, 1 reply; 4+ messages in thread
From: Huang Ying @ 2015-02-05 5:41 UTC (permalink / raw)
To: Will Deacon; +Cc: LKP ML, Linus Torvalds, LKML
On Tue, 2015-02-03 at 10:27 +0000, Will Deacon wrote:
> On Tue, Feb 03, 2015 at 07:45:04AM +0000, Huang Ying wrote:
> > FYI, we noticed the below changes on
> >
> > commit 721c21c17ab958abf19a8fc611c3bd4743680e38 ("mm: mmu_gather: use
> > tlb->end != 0 only for TLB invalidation")
>
> Is this delta relative to the previous commit, or something else? The
> commit in question restored some 3.18 behaviour on task exit (namely
> doing a fullmm TLB flush), so it would be interesting to know if you
> see the same change against 3.18.
Sorry for late. The delta is relative to the previous commit. I will
queue some test for 3.18 to check.
Best Regards,
Huang, Ying
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [LKP] [mm] 721c21c17ab: +11.7% will-it-scale.per_thread_ops
2015-02-05 5:41 ` Huang Ying
@ 2015-02-12 4:56 ` Huang Ying
0 siblings, 0 replies; 4+ messages in thread
From: Huang Ying @ 2015-02-12 4:56 UTC (permalink / raw)
To: Will Deacon; +Cc: LKP ML, Linus Torvalds, LKML
On Thu, 2015-02-05 at 13:41 +0800, Huang Ying wrote:
> On Tue, 2015-02-03 at 10:27 +0000, Will Deacon wrote:
> > On Tue, Feb 03, 2015 at 07:45:04AM +0000, Huang Ying wrote:
> > > FYI, we noticed the below changes on
> > >
> > > commit 721c21c17ab958abf19a8fc611c3bd4743680e38 ("mm: mmu_gather: use
> > > tlb->end != 0 only for TLB invalidation")
> >
> > Is this delta relative to the previous commit, or something else? The
> > commit in question restored some 3.18 behaviour on task exit (namely
> > doing a fullmm TLB flush), so it would be interesting to know if you
> > see the same change against 3.18.
>
> Sorry for late. The delta is relative to the previous commit. I will
> queue some test for 3.18 to check.
The test result for v3.18 compared with the commit 721c21c is as below.
You can find that the difference between v3.18 and 721c21c should be
less that between v3.18 and the previous commit (parent) for
will-it-scale.per_thread_ops. I think this is expected.
testbox/testcase/testparams: nhm4/will-it-scale/performance-pread2
v3.18 721c21c17ab958abf19a8fc611
---------------- --------------------------
%stddev %change %stddev
\ | \
31541022 ± 0% -12.2% 27698665 ± 0% will-it-scale.time.voluntary_context_switches
1079302 ± 0% -6.3% 1011350 ± 2% will-it-scale.per_process_ops
0.04 ± 0% -4.5% 0.03 ± 1% will-it-scale.scalability
1038581 ± 0% -3.2% 1005724 ± 0% will-it-scale.per_thread_ops
Best Regards,
Huang, Ying
^ permalink raw reply [flat|nested] 4+ messages in thread
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2015-02-03 7:45 [LKP] [mm] 721c21c17ab: +11.7% will-it-scale.per_thread_ops Huang Ying
2015-02-03 10:27 ` Will Deacon
2015-02-05 5:41 ` Huang Ying
2015-02-12 4:56 ` Huang Ying
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