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Date: Wed, 13 Apr 2016 10:26:52 +0800
From: kernel test robot <xiaolong.ye@...el.com>
To: "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>
Cc: 0day robot <fengguang.wu@...el.com>,
Andrea Arcangeli <aarcange@...hat.com>,
LKML <linux-kernel@...r.kernel.org>, lkp@...org
Subject: [lkp] [thp] 5f155ea5ab: No primary change,
vm-scalability.time.system_time -51.0% improvement
FYI, we noticed that vm-scalability.time.system_time -51.0% improvement on
https://github.com/0day-ci/linux Kirill-A-Shutemov/thp-keep-huge-zero-page-pinned-until-tlb-flush/20160405-181706
commit 5f155ea5ab62b5321aa7315de62d21da59aa8c65 ("thp: keep huge zero page pinned until tlb flush")
=========================================================================================
compiler/cpufreq_governor/kconfig/rootfs/runtime/tbox_group/test/testcase:
gcc-4.9/performance/x86_64-rhel/debian-x86_64-2015-02-07.cgz/300s/lkp-hsx04/anon-r-seq/vm-scalability
commit:
v4.6-rc2
5f155ea5ab62b5321aa7315de62d21da59aa8c65
v4.6-rc2 5f155ea5ab62b5321aa7315de6
---------------- --------------------------
%stddev %change %stddev
\ | \
517.69 ± 0% -51.0% 253.81 ± 0% vm-scalability.time.system_time
1694 ±173% +392.6% 8345 ±116% latency_stats.sum.load_module.SYSC_finit_module.SyS_finit_module.entry_SYSCALL_64_fastpath
517.69 ± 0% -51.0% 253.81 ± 0% time.system_time
0.46 ± 2% -16.5% 0.38 ± 2% turbostat.CPU%c6
1731 ± 14% +50.9% 2612 ± 9% cpuidle.C1-HSW.usage
15476193 ± 6% -32.9% 10389552 ± 6% cpuidle.C1E-HSW.time
3.55 ± 3% +26.0% 4.48 ± 1% perf-profile.cycles-pp.get_page_from_freelist.__alloc_pages_nodemask.alloc_pages_current.pte_alloc_one.do_huge_pmd_anonymous_page
2.45 ± 4% +9.9% 2.69 ± 5% perf-profile.cycles-pp.perf_event_task_tick.scheduler_tick.update_process_times.tick_sched_handle.tick_sched_timer
0.86 ± 5% +11.9% 0.96 ± 3% perf-profile.cycles-pp.update_curr.task_tick_fair.scheduler_tick.update_process_times.tick_sched_handle
28006 ±113% +143.3% 68134 ± 1% numa-vmstat.node0.nr_active_anon
1359 ± 44% +68.6% 2292 ± 28% numa-vmstat.node0.nr_mapped
82066 ± 31% -44.3% 45740 ± 60% numa-vmstat.node2.nr_file_pages
52443 ± 49% -69.2% 16160 ±171% numa-vmstat.node2.nr_shmem
336.60 ± 7% -20.5% 267.75 ± 8% slabinfo.kmem_cache.active_objs
336.60 ± 7% -20.5% 267.75 ± 8% slabinfo.kmem_cache.num_objs
694.40 ± 4% -12.4% 608.00 ± 4% slabinfo.kmem_cache_node.active_objs
742.40 ± 4% -11.6% 656.00 ± 4% slabinfo.kmem_cache_node.num_objs
136724 ± 93% +117.8% 297755 ± 1% numa-meminfo.node0.Active
111528 ±113% +144.5% 272658 ± 1% numa-meminfo.node0.Active(anon)
5429 ± 43% +70.6% 9262 ± 27% numa-meminfo.node0.Mapped
328531 ± 31% -44.3% 182976 ± 60% numa-meminfo.node2.FilePages
210042 ± 49% -69.2% 64658 ±171% numa-meminfo.node2.Shmem
lkp-hsx04: Brickland Haswell-EX
Memory: 512G
vm-scalability.time.system_time
550 ++--------------------------------------------------------------------+
*..*..*..*.. .*..*..*..*.. .*.*..*..*.. |
500 ++ *..*..*.*..*..*..*..*..*. *. * |
| |
450 ++ |
| |
400 ++ |
| |
350 ++ |
| |
300 ++ |
| O O |
250 O+ O O O O O O O O O O O O O O O O O O O O O O
| |
200 ++--------------------------------------------------------------------+
time.system_time
550 ++--------------------------------------------------------------------+
*..*..*..*.. .*..*..*..*.. .*.*..*..*.. |
500 ++ *..*..*.*..*..*..*..*..*. *. * |
| |
450 ++ |
| |
400 ++ |
| |
350 ++ |
| |
300 ++ |
| O O |
250 O+ O O O O O O O O O O O O O O O O O O O O O O
| |
200 ++--------------------------------------------------------------------+
[*] bisect-good sample
[O] bisect-bad sample
To reproduce:
git clone git://git.kernel.org/pub/scm/linux/kernel/git/wfg/lkp-tests.git
cd lkp-tests
bin/lkp install job.yaml # job file is attached in this email
bin/lkp run 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,
Xiaolong Ye
View attachment "job.yaml" of type "text/plain" (3533 bytes)
View attachment "reproduce" of type "text/plain" (14236 bytes)
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