From: kernel test robot <yi1.lai@intel.com>
To: Harry Yoo <harry@kernel.org>
Cc: oe-lkp@lists.linux.dev, lkp@intel.com, linux-mm@kvack.org,
yi1.lai@intel.com
Subject: [harry:b4/sheaf-size-round-up] [mm/slab] 7d63a6c06a: will-it-scale.per_process_ops 54.0% improvement
Date: Mon, 2 Nov 2026 21:56:54 +0800 [thread overview]
Message-ID: <202611021441.984cb0bb-lkp@intel.com> (raw)
Hello,
kernel test robot noticed a 54.0% improvement of will-it-scale.per_process_ops on:
commit: 7d63a6c06a85030dc4344dc0884883b115faa64a ("mm/slab: round up sheaf size to kmalloc size for explicit sheaf_capacity")
https://git.kernel.org/cgit/linux/kernel/git/harry/linux.git b4/sheaf-size-round-up
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: mmap1
cpufreq_governor: performance
Details are as below:
-------------------------------------------------------------------------------------------------->
The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20261102/202611021441.984cb0bb-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/mmap1/will-it-scale
commit:
6ae424d6ef ("EDITME: cover title for sheaf-size-round-up")
7d63a6c06a ("mm/slab: round up sheaf size to kmalloc size for explicit sheaf_capacity")
6ae424d6eff8059f 7d63a6c06a85030dc4344dc0884
---------------- ---------------------------
%stddev %change %stddev
\ | \
38572109 +54.0% 59400688 will-it-scale.192.processes
200895 +54.0% 309378 will-it-scale.per_process_ops
38572109 +54.0% 59400688 will-it-scale.workload
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:[~2026-11-02 13:57 UTC|newest]
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