[linus:master] [efivarfs] b2326338dc: stress-ng.sysinfo.ops_per_sec 19.5% improvement

[linus:master] [efivarfs] b2326338dc: stress-ng.sysinfo.ops_per_sec 19.5% improvement

[kernel test robot]

Hello,

kernel test robot noticed a 19.5% improvement of stress-ng.sysinfo.ops_per_sec on:

commit: b2326338dc683e8c1067c0cbf7a47986c4190902 ("efivarfs: Rate limit statfs() handler") https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master

testcase: stress-ng
config: x86_64-rhel-9.4
compiler: gcc-14
test machine: 224 threads 2 sockets Intel(R) Xeon(R) Platinum 8480CTDX (Sapphire Rapids) with 256G memory
parameters:

	nr_threads: 100%
	testtime: 60s
	test: sysinfo
	cpufreq_governor: performance


Details are as below:
-------------------------------------------------------------------------------------------------->


The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20260914/202609141037.779d7909-lkp@intel.com

=========================================================================================
compiler/cpufreq_governor/kconfig/nr_threads/rootfs/tbox_group/test/testcase/testtime:
  gcc-14/performance/x86_64-rhel-9.4/100%/debian-13-x86_64-20250902.cgz/lkp-spr-r02/sysinfo/stress-ng/60s

commit: 
  eb01ffabeb ("efi: apple-properties: validate setup data header length")
  b2326338dc ("efivarfs: Rate limit statfs() handler")

eb01ffabeb52251f b2326338dc683e8c1067c0cbf7a
---------------- --------------------------- 
         %stddev     %change         %stddev
             \          |                \  
      5824           +19.2%       6944        stress-ng.sysinfo.ops
     96.86           +19.5%     115.73        stress-ng.sysinfo.ops_per_sec
      3.00          +100.0%       6.00        stress-ng.time.percent_of_cpu_this_job_got


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