[linux-next:master] [smb] 40e75e42f4: filebench.sum_operations/s 9.5% improvement

[linux-next:master] [smb] 40e75e42f4: filebench.sum_operations/s 9.5% improvement

[kernel test robot]

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