[linus:master] [sched] c72945693b: stress-ng.rawudp.packets_32_bytes_received_per_sec 34.2% improvement

[linus:master] [sched] c72945693b: stress-ng.rawudp.packets_32_bytes_received_per_sec 34.2% improvement

[kernel test robot]

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