From: kernel test robot <yi1.lai@intel.com>
To: Mateusz Guzik <mjguzik@gmail.com>
Cc: oe-lkp@lists.linux.dev, lkp@intel.com,
linux-kernel@vger.kernel.org,
Christian Brauner <brauner@kernel.org>,
linux-fsdevel@vger.kernel.org, yi1.lai@intel.com
Subject: [linus:master] [fs] 161ce1e692: will-it-scale.per_process_ops 113.3% improvement
Date: Fri, 6 Nov 2026 09:01:38 +0800 [thread overview]
Message-ID: <202611060127.79124a4f-lkp@intel.com> (raw)
Hello,
kernel test robot noticed a 113.3% improvement of will-it-scale.per_process_ops on:
commit: 161ce1e692d01ddec0522f24a29535ac59a3afaf ("fs: avoid spurious dentry ref/unref cycle on open") https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master
testcase: will-it-scale
config: x86_64-rhel-9.4
compiler: gcc-14
test machine: 192 threads 2 sockets Intel(R) Xeon(R) 6740E CPU @ 2.4GHz (Sierra Forest) with 256G memory
parameters:
nr_task: 100%
mode: process
test: open3
cpufreq_governor: performance
Details are as below:
-------------------------------------------------------------------------------------------------->
The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20261106/202611060127.79124a4f-lkp@intel.com
=========================================================================================
compiler/cpufreq_governor/kconfig/mode/nr_task/rootfs/tbox_group/test/testcase:
gcc-14/performance/x86_64-rhel-9.4/process/100%/debian-13-x86_64-20250902.cgz/lkp-srf-2sp2/open3/will-it-scale
commit:
v7.3-rc1
161ce1e692 ("fs: avoid spurious dentry ref/unref cycle on open")
v7.3-rc1 161ce1e692d01ddec0522f24a29
---------------- ---------------------------
%stddev %change %stddev
\ | \
582504 ± 4% +113.3% 1242579 ± 18% will-it-scale.192.processes
3033 ± 4% +113.3% 6471 ± 18% will-it-scale.per_process_ops
582504 ± 4% +113.3% 1242579 ± 18% will-it-scale.workload
0.14 ± 3% +0.0 0.18 ± 9% mpstat.cpu.all.usr%
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:[~2026-11-06 1:01 UTC|newest]
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