From: kernel test robot <yi1.lai@intel.com>
To: Shubhang Kaushik <sh@gentwo.org>
Cc: oe-lkp@lists.linux.dev, lkp@intel.com,
linux-kernel@vger.kernel.org,
Peter Zijlstra <peterz@infradead.org>,
Zhan Xusheng <zhanxusheng@xiaomi.com>,
sched-ext@lists.linux.dev, aubrey.li@linux.intel.com,
yu.c.chen@intel.com, yi1.lai@intel.com
Subject: [linus:master] [sched] c72945693b: stress-ng.rawudp.packets_32_bytes_received_per_sec 34.2% improvement
Date: Tue, 27 Oct 2026 18:50:06 +0800 [thread overview]
Message-ID: <202610271134.d6bf1e10-lkp@intel.com> (raw)
Hello,
kernel test robot noticed a 34.2% improvement of stress-ng.rawudp.packets_32_bytes_received_per_sec on:
commit: c72945693b90423f1b46ac2dbc8749c2b7804fc8 ("sched: Restart fair hrtick after same-task repicks") 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: 192 threads 2 sockets Intel(R) Xeon(R) 6740E CPU @ 2.4GHz (Sierra Forest) with 256G memory
parameters:
nr_threads: 100%
testtime: 60s
test: rawudp
cpufreq_governor: performance
Details are as below:
-------------------------------------------------------------------------------------------------->
The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20261027/202610271134.d6bf1e10-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-srf-2sp3/rawudp/stress-ng/60s
commit:
a9b3c75705 ("sched/headers: Replace __ASSEMBLY__ with __ASSEMBLER__ in the <uapi/linux/sched.h> header")
c72945693b ("sched: Restart fair hrtick after same-task repicks")
a9b3c7570564de40 c72945693b90423f1b46ac2dbc8
---------------- ---------------------------
%stddev %change %stddev
\ | \
0.01 +100.0% 0.02 stress-ng.rawudp.MB_recv'd_per_sec
4559098 +34.1% 6112029 ± 3% stress-ng.rawudp.ops
76041 +34.0% 101916 ± 3% stress-ng.rawudp.ops_per_sec
395.33 +34.2% 530.63 ± 3% stress-ng.rawudp.packets_32_bytes_received_per_sec
2611008 ± 2% +14.9% 2999104 ± 5% stress-ng.time.involuntary_context_switches
47.70 ± 7% +46.7% 69.96 ± 8% stress-ng.time.user_time
20919233 ± 4% +41.7% 29638128 ± 2% stress-ng.time.voluntary_context_switches
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:[~2026-10-27 10:50 UTC|newest]
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