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X-OriginatorOrg: intel.com Hello, kernel test robot noticed a 9.5% improvement of filebench.sum_operations/s on: commit: 40e75e42f49ca54b4ff41f3edb94f5ef0299140c ("smb: client: fix open handle lookup in cifs_open()") https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master testcase: filebench config: x86_64-rhel-9.4 compiler: gcc-14 test machine: 512 threads 4 sockets Intel(R) Xeon(R) 6768P CPU @ 2.4GHz (Granite Rapids) with 128G memory parameters: disk: 1SSD fs: ext4 fs2: cifs test: webproxy.f cpufreq_governor: performance Details are as below: --------------------------------------------------------------------------------------------------> The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20260421/202604211611.9b649c8a-lkp@intel.com ========================================================================================= compiler/cpufreq_governor/disk/fs2/fs/kconfig/rootfs/tbox_group/test/testcase: gcc-14/performance/1SSD/cifs/ext4/x86_64-rhel-9.4/debian-13-x86_64-20250902.cgz/lkp-gnr-4sp2/webproxy.f/filebench commit: d4c7210d2f ("smb: client: fix iface port assignment in parse_server_interfaces") 40e75e42f4 ("smb: client: fix open handle lookup in cifs_open()") d4c7210d2f3ea481 40e75e42f49ca54b4ff41f3edb9 ---------------- --------------------------- %stddev %change %stddev \ | \ 11.25 +8.0% 12.15 filebench.sum_bytes_mb/s 185317 +9.5% 202907 filebench.sum_operations 3088 +9.5% 3381 filebench.sum_operations/s 812.33 +9.5% 889.50 filebench.sum_reads/s 32.28 -8.7% 29.48 filebench.sum_time_ms/op 162.33 +9.5% 177.83 filebench.sum_writes/s 450654 +4.1% 468946 filebench.time.file_system_outputs 65856 ± 2% -5.4% 62305 filebench.time.minor_page_faults 100.50 -37.8% 62.50 ± 2% filebench.time.percent_of_cpu_this_job_got 181.94 -38.1% 112.56 filebench.time.system_time 281234 +8.9% 306129 filebench.time.voluntary_context_switches 12871 +5.7% 13600 vmstat.system.cs 0.31 -0.1 0.22 mpstat.cpu.all.sys% 39.00 ± 18% -97.4% 1.00 mpstat.max_utilization.seconds 0.16 ± 13% -0.0 0.11 ± 18% perf-profile.children.cycles-pp.task_tick_idle 0.51 ± 29% +0.5 1.05 ± 58% perf-profile.children.cycles-pp.hrtimer_try_to_cancel 0.16 ± 13% -0.0 0.11 ± 17% perf-profile.self.cycles-pp.task_tick_idle 18.00 -18.5% 14.67 ± 3% turbostat.Avg_MHz 0.47 -0.1 0.38 turbostat.Busy% 0.44 ± 3% +7.9% 0.48 turbostat.CPU%c1 0.39 +16.8% 0.45 turbostat.IPC 2624523 -4.0% 2519538 turbostat.IRQ 77.69 ± 3% -7.1% 72.19 perf-sched.total_wait_and_delay.average.ms 74994 ± 2% +8.4% 81279 perf-sched.total_wait_and_delay.count.ms 77.37 ± 3% -7.0% 71.96 perf-sched.total_wait_time.average.ms 77.69 ± 3% -7.1% 72.19 perf-sched.wait_and_delay.avg.ms.[unknown].[unknown].[unknown].[unknown].[unknown] 74994 ± 2% +8.4% 81279 perf-sched.wait_and_delay.count.[unknown].[unknown].[unknown].[unknown].[unknown] 77.37 ± 3% -7.0% 71.96 perf-sched.wait_time.avg.ms.[unknown].[unknown].[unknown].[unknown].[unknown] 7.73e+08 -7.5% 7.152e+08 perf-stat.i.branch-instructions 12690 +5.9% 13433 perf-stat.i.context-switches 9.481e+09 -18.8% 7.696e+09 perf-stat.i.cpu-cycles 3.583e+09 -5.4% 3.389e+09 perf-stat.i.instructions 0.32 +8.1% 0.34 perf-stat.i.ipc 1.48 +0.1 1.61 perf-stat.overall.branch-miss-rate% 2.65 -14.2% 2.27 perf-stat.overall.cpi 3007 ± 6% -19.1% 2433 ± 3% perf-stat.overall.cycles-between-cache-misses 0.38 +16.5% 0.44 perf-stat.overall.ipc 7.704e+08 -7.6% 7.117e+08 perf-stat.ps.branch-instructions 12637 +5.8% 13364 perf-stat.ps.context-switches 9.449e+09 -18.9% 7.659e+09 perf-stat.ps.cpu-cycles 3.57e+09 -5.6% 3.372e+09 perf-stat.ps.instructions 6.534e+11 -5.5% 6.173e+11 perf-stat.total.instructions 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