* [linus:master] [mm] 1ced09e033: pmbench.throughput.aps 3.5% improvement
@ 2024-11-29 2:59 kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2024-11-29 2:59 UTC (permalink / raw)
To: Dev Jain; +Cc: oe-lkp, oliver.sang
Hello,
kernel test robot noticed a 3.5% improvement of pmbench.throughput.aps on:
commit: 1ced09e0331f6cc4ca7eae75bc0ef03957129a94 ("mm: allocate THP on hugezeropage wp-fault")
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master
testcase: pmbench
config: x86_64-rhel-9.4
compiler: gcc-12
test machine: 16 threads 1 sockets Intel(R) Xeon(R) E-2278G CPU @ 3.40GHz (Coffee Lake-E) with 32G memory
parameters:
runtime: 300s
nr_threads: 100%
mapsize: 75%
cold: 1
cpufreq_governor: performance
Details are as below:
-------------------------------------------------------------------------------------------------->
The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20241129/202411291031.595ea459-lkp@intel.com
=========================================================================================
cold/compiler/cpufreq_governor/kconfig/mapsize/nr_threads/rootfs/runtime/tbox_group/testcase:
1/gcc-12/performance/x86_64-rhel-9.4/75%/100%/debian-12-x86_64-20240206.cgz/300s/lkp-cfl-e1/pmbench
commit:
ebcfc63d6b ("mm: abstract THP allocation")
1ced09e033 ("mm: allocate THP on hugezeropage wp-fault")
ebcfc63d6bca3cce 1ced09e0331f6cc4ca7eae75bc0
---------------- ---------------------------
%stddev %change %stddev
\ | \
293877 +26.1% 370613 ± 2% meminfo.AnonHugePages
114.20 ± 12% +37.3% 156.80 ± 8% perf-c2c.HITM.local
19618 -1.4% 19349 vmstat.system.in
84.80 ± 9% -19.1% 68.60 ± 13% perf-sched.wait_and_delay.count.irqentry_exit_to_user_mode.asm_sysvec_apic_timer_interrupt.[unknown].[unknown]
162.00 ± 11% -19.1% 131.10 ± 14% perf-sched.wait_and_delay.count.irqentry_exit_to_user_mode.asm_sysvec_reschedule_ipi.[unknown].[unknown]
389089 -5.8% 366424 proc-vmstat.numa_hit
389089 -5.8% 366424 proc-vmstat.numa_local
486747 -4.8% 463625 proc-vmstat.pgfault
94.78 -3.3% 91.62 ± 2% pmbench.latency.ns.average
0.01 -0.0 0.01 ± 3% pmbench.read.latency.ns.2K-4K%
0.40 +0.0 0.45 ± 14% pmbench.read.latency.ns.512-1K%
21835 ± 6% -95.1% 1067 pmbench.time.minor_page_faults
0.00 ± 5% -0.0 0.00 ± 9% pmbench.write.latency.ns.128K-256K%
0.00 ± 8% +0.0 0.00 ± 14% pmbench.write.latency.ns.1M-2M%
0.00 ± 9% -0.0 0.00 pmbench.write.latency.ns.256-512%
0.00 ± 3% -0.0 0.00 pmbench.write.latency.ns.2K-4K%
0.00 ± 4% -0.0 0.00 ± 31% pmbench.write.latency.ns.2M-4M%
0.00 ± 5% -0.0 0.00 ± 3% pmbench.write.latency.ns.32K-64K%
0.00 ± 3% -0.0 0.00 ± 8% pmbench.write.latency.ns.4K-8K%
0.00 ± 18% -0.0 0.00 ± 14% pmbench.write.latency.ns.512-1K%
0.00 ± 7% -0.0 0.00 ± 6% pmbench.write.latency.ns.512K-1M%
0.00 ± 8% -0.0 0.00 ± 6% pmbench.write.latency.ns.64K-128K%
0.00 ± 13% -0.0 0.00 ± 14% pmbench.write.latency.ns.8K-16K%
1.688e+08 +3.5% 1.747e+08 pmbench.throughput.aps
0.44 ± 4% -0.0 0.39 ± 15% pmbench.throughput.std_dev%
4.161e+09 +3.9% 4.322e+09 perf-stat.i.branch-instructions
1.198e+08 +4.5% 1.253e+08 perf-stat.i.branch-misses
68.01 +18.3 86.33 perf-stat.i.cache-miss-rate%
5.197e+08 +3.9% 5.4e+08 perf-stat.i.cache-misses
7.617e+08 -18.2% 6.228e+08 perf-stat.i.cache-references
3.41 -4.2% 3.27 perf-stat.i.cpi
1.973e+10 +3.9% 2.05e+10 perf-stat.i.instructions
0.30 +4.4% 0.31 perf-stat.i.ipc
0.01 ± 12% -100.0% 0.00 perf-stat.i.metric.K/sec
1293 -5.0% 1228 perf-stat.i.minor-faults
1293 -5.0% 1228 perf-stat.i.page-faults
68.24 +18.5 86.71 perf-stat.overall.cache-miss-rate%
3.40 -4.0% 3.26 perf-stat.overall.cpi
129.03 -4.0% 123.85 perf-stat.overall.cycles-between-cache-misses
0.29 +4.2% 0.31 perf-stat.overall.ipc
4.145e+09 +3.9% 4.306e+09 perf-stat.ps.branch-instructions
1.194e+08 +4.5% 1.248e+08 perf-stat.ps.branch-misses
5.176e+08 +3.9% 5.38e+08 perf-stat.ps.cache-misses
7.587e+08 -18.2% 6.204e+08 perf-stat.ps.cache-references
1.966e+10 +3.9% 2.042e+10 perf-stat.ps.instructions
1290 -5.0% 1224 perf-stat.ps.minor-faults
1290 -5.0% 1224 perf-stat.ps.page-faults
3.48 ± 5% -2.9 0.60 perf-profile.calltrace.cycles-pp.access_histogram._ops_rdtsc_init_base_freq
14.48 -2.4 12.10 perf-profile.calltrace.cycles-pp._ops_rdtsc_init_base_freq
0.64 ± 2% +0.0 0.67 perf-profile.calltrace.cycles-pp.roll_dice
1.10 +0.1 1.18 ± 3% perf-profile.calltrace.cycles-pp.record_histogram
4.88 +0.3 5.14 perf-profile.calltrace.cycles-pp.main_bm_thread
7.46 +0.4 7.85 perf-profile.calltrace.cycles-pp.access_histogram
9.86 +0.4 10.29 perf-profile.calltrace.cycles-pp._ops_rdtscp
52.15 +0.5 52.70 perf-profile.calltrace.cycles-pp.measure_read
11.64 +0.6 12.23 perf-profile.calltrace.cycles-pp._ops_rdtscp._ops_rdtsc_init_base_freq
8.85 +0.6 9.47 perf-profile.calltrace.cycles-pp.uniform_get_number
11.18 -2.4 8.76 perf-profile.children.cycles-pp.access_histogram
14.48 -2.4 12.10 perf-profile.children.cycles-pp._ops_rdtsc_init_base_freq
0.71 +0.0 0.74 perf-profile.children.cycles-pp.roll_dice
6.21 +0.3 6.54 perf-profile.children.cycles-pp.main_bm_thread
52.43 +0.6 52.99 perf-profile.children.cycles-pp.measure_read
8.85 +0.6 9.48 perf-profile.children.cycles-pp.uniform_get_number
20.90 +0.9 21.83 perf-profile.children.cycles-pp._ops_rdtscp
10.27 ± 2% -2.5 7.80 perf-profile.self.cycles-pp.access_histogram
0.54 ± 2% +0.0 0.58 ± 2% perf-profile.self.cycles-pp.roll_dice
5.92 +0.3 6.26 perf-profile.self.cycles-pp.main_bm_thread
51.97 +0.5 52.51 perf-profile.self.cycles-pp.measure_read
8.67 +0.6 9.28 perf-profile.self.cycles-pp.uniform_get_number
19.98 +0.8 20.81 perf-profile.self.cycles-pp._ops_rdtscp
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.
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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2024-11-29 2:59 [linus:master] [mm] 1ced09e033: pmbench.throughput.aps 3.5% improvement kernel test robot
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