From: kernel test robot <yi1.lai@intel.com>
To: Ard Biesheuvel <ardb@kernel.org>
Cc: oe-lkp@lists.linux.dev, lkp@intel.com,
linux-kernel@vger.kernel.org,
Ravi Bangoria <ravi.bangoria@amd.com>,
Anisse Astier <anisse@astier.eu>,
linux-efi@vger.kernel.org, yi1.lai@intel.com
Subject: [linus:master] [efivarfs] b2326338dc: stress-ng.sysinfo.ops_per_sec 19.5% improvement
Date: Mon, 14 Sep 2026 10:34:02 +0800 [thread overview]
Message-ID: <202609141037.779d7909-lkp@intel.com> (raw)
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
reply other threads:[~2026-09-14 2:34 UTC|newest]
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