* [LKP] [mm] 7d5b506f3c2: -3.9% pigz.time.minor_page_faults
@ 2015-02-12 1:35 Huang Ying
2015-02-12 1:58 ` Stephen Rothwell
0 siblings, 1 reply; 2+ messages in thread
From: Huang Ying @ 2015-02-12 1:35 UTC (permalink / raw)
To: Ebru Akagunduz; +Cc: Stephen Rothwell, LKML, LKP ML
[-- Attachment #1: Type: text/plain, Size: 5102 bytes --]
FYI, we noticed the below changes on
git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
commit 7d5b506f3c295ff81e34235544a9e6ac143743c1 ("mm: incorporate read-only pages into transparent huge pages")
testbox/testcase/testparams: xps2/pigz/performance-100%-512K
c3916839649ddb3c 7d5b506f3c295ff81e34235544
---------------- --------------------------
%stddev %change %stddev
\ | \
27105 ± 0% -3.9% 26056 ± 1% pigz.time.minor_page_faults
0.93 ± 49% -55.0% 0.42 ± 17% perf-profile.cpu-cycles.enqueue_task.activate_task.ttwu_do_activate.try_to_wake_up.default_wake_function
0.83 ± 43% -49.5% 0.42 ± 9% perf-profile.cpu-cycles.try_to_wake_up.default_wake_function.autoremove_wake_function.__wake_up_common.__wake_up_sync_key
2.53 ± 37% -41.0% 1.49 ± 6% perf-profile.cpu-cycles.__alloc_pages_nodemask.alloc_pages_current.pipe_write.new_sync_write.vfs_write
0.77 ± 47% -49.0% 0.40 ± 2% perf-profile.cpu-cycles.autoremove_wake_function.__wake_up_common.__wake_up_sync_key.pipe_read.new_sync_read
0.77 ± 47% -49.4% 0.39 ± 3% perf-profile.cpu-cycles.default_wake_function.autoremove_wake_function.__wake_up_common.__wake_up_sync_key.pipe_read
0.77 ± 47% -46.1% 0.42 ± 10% perf-profile.cpu-cycles.__wake_up_common.__wake_up_sync_key.pipe_read.new_sync_read.__vfs_read
1.62 ± 37% -40.8% 0.96 ± 14% perf-profile.cpu-cycles.get_page_from_freelist.__alloc_pages_nodemask.alloc_pages_current.pipe_write.new_sync_write
0.78 ± 18% -47.7% 0.40 ± 16% perf-profile.cpu-cycles.run_timer_softirq.__do_softirq.irq_exit.do_IRQ.ret_from_intr
2.78 ± 32% -35.1% 1.80 ± 8% perf-profile.cpu-cycles.alloc_pages_current.pipe_write.new_sync_write.vfs_write.sys_write
1.09 ± 28% -35.5% 0.71 ± 23% perf-profile.cpu-cycles.put_page.anon_pipe_buf_release.pipe_read.new_sync_read.__vfs_read
1.48 ± 15% -33.5% 0.98 ± 17% perf-profile.cpu-cycles.__do_softirq.irq_exit.do_IRQ.ret_from_intr
1.63 ± 20% -30.9% 1.12 ± 14% perf-profile.cpu-cycles.anon_pipe_buf_release.pipe_read.new_sync_read.__vfs_read.vfs_read
15.76 ± 10% +27.5% 20.09 ± 6% perf-profile.cpu-cycles.tick_program_event.hrtimer_interrupt.hpet_interrupt_handler.handle_irq_event_percpu.handle_irq_event
15.61 ± 10% +26.8% 19.79 ± 6% perf-profile.cpu-cycles.clockevents_program_event.tick_program_event.hrtimer_interrupt.hpet_interrupt_handler.handle_irq_event_percpu
15.21 ± 9% +27.9% 19.45 ± 6% perf-profile.cpu-cycles.hpet_msi_next_event.clockevents_program_event.tick_program_event.hrtimer_interrupt.hpet_interrupt_handler
1758 ± 36% +46.6% 2578 ± 3% sched_debug.cpu#0.curr->pid
2.43 ± 10% +27.9% 3.11 ± 3% perf-profile.cpu-cycles.irq_exit.smp_apic_timer_interrupt.apic_timer_interrupt
130 ± 4% +13.8% 148 ± 5% sched_debug.cpu#3.load
130 ± 4% +13.8% 148 ± 5% sched_debug.cfs_rq[3]:/.load
2498 ± 5% +10.4% 2757 ± 6% slabinfo.kmalloc-256.num_objs
xps2: Nehalem
Memory: 4G
pigz.time.minor_page_faults
27400 ++------------------------------------------------------------------+
27200 ++ *. *.* .* |
| .*. + * + + * * *.* + .*
27000 *+* *.*.*.*.*.** + .*.*.*.*.*.*.*.*. .* * : : + + * |
26800 ++ *.* * : : * |
| * |
26600 ++ |
26400 ++ O O |
26200 ++ O O |
| O O O |
26000 ++O |
25800 ++ O O O O O O O O O |
| O O |
25600 O+ O |
25400 ++------------------------------------------------------------------+
[*] 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: 1740 bytes --]
---
testcase: pigz
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: f61b8d6d777dfb241ebe87478c5c82126ac8d687
model: Nehalem
memory: 4G
nr_ssd_partitions: 1
ssd_partitions: "/dev/disk/by-id/ata-INTEL_SSDSC2CW240A3_CVCV204303XB240CGN-part1"
swap_partitions:
rootfs_partition: "/dev/disk/by-id/ata-INTEL_SSDSC2CW240A3_CVCV204303XB240CGN-part2"
netconsole_port: 6665
perf-profile:
freq: 800
nr_threads: 100%
pigz:
blocksize: 512K
testbox: xps2
tbox_group: xps2
kconfig: x86_64-rhel
enqueue_time: 2015-02-11 08:54:24.084863795 +08:00
head_commit: f61b8d6d777dfb241ebe87478c5c82126ac8d687
base_commit: bfa76d49576599a4b9f9b7a71f23d73d6dcff735
branch: next/master
kernel: "/kernel/x86_64-rhel/f61b8d6d777dfb241ebe87478c5c82126ac8d687/vmlinuz-3.19.0-next-20150210-gf61b8d6"
user: lkp
queue: cyclic
rootfs: debian-x86_64-2015-02-07.cgz
result_root: "/result/xps2/pigz/performance-100%-512K/debian-x86_64-2015-02-07.cgz/x86_64-rhel/f61b8d6d777dfb241ebe87478c5c82126ac8d687/0"
job_file: "/lkp/scheduled/xps2/cyclic_pigz-performance-100%-512K-x86_64-rhel-HEAD-f61b8d6d777dfb241ebe87478c5c82126ac8d687-0-20150211-14981-iea6fd.yaml"
dequeue_time: 2015-02-11 09:08:52.086449889 +08:00
nr_cpu: "$(nproc)"
job_state: finished
loadavg: 6.38 5.04 2.28 1/133 5308
start_time: '1423616958'
end_time: '1423617259'
version: "/lkp/lkp/.src-20150210-213435"
[-- Attachment #3: Type: text/plain, Size: 89 bytes --]
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LKP mailing list
LKP@linux.intel.com
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^ permalink raw reply [flat|nested] 2+ messages in thread* Re: [LKP] [mm] 7d5b506f3c2: -3.9% pigz.time.minor_page_faults
2015-02-12 1:35 [LKP] [mm] 7d5b506f3c2: -3.9% pigz.time.minor_page_faults Huang Ying
@ 2015-02-12 1:58 ` Stephen Rothwell
0 siblings, 0 replies; 2+ messages in thread
From: Stephen Rothwell @ 2015-02-12 1:58 UTC (permalink / raw)
To: Huang Ying; +Cc: Ebru Akagunduz, LKML, LKP ML
[-- Attachment #1: Type: text/plain, Size: 849 bytes --]
Hi Huang,
On Thu, 12 Feb 2015 09:35:26 +0800 Huang Ying <ying.huang@intel.com> wrote:
>
> FYI, we noticed the below changes on
>
> git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
> commit 7d5b506f3c295ff81e34235544a9e6ac143743c1 ("mm: incorporate read-only pages into transparent huge pages")
You may need to be more precise about the tree that you are using as
linux-next rebases every day and so there could be different
interactions with a single commit depending on what else is in a
particular release. For example, the above commit appears in 4
different linux-next releases so far (next-20150204, next-20150209,
next-20150210, next-20150211).
Also, mm related problems should probably also be reported to Andrew
Morton.
--
Cheers,
Stephen Rothwell sfr@canb.auug.org.au
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