[linus:master] [sched] 333238da9a: stress-ng.vm-rw.ops_per_sec 36.4% improvement

[linus:master] [sched] 333238da9a: stress-ng.vm-rw.ops_per_sec 36.4% improvement

[kernel test robot]

Hello,

kernel test robot noticed a 36.4% improvement of stress-ng.vm-rw.ops_per_sec on:


commit: 333238da9a193ffc58792995f3e951e4cb87bfd2 ("sched: Update time before requeueing delayed entities") 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) (Sapphire Rapids) with 128G memory
parameters:

	nr_threads: 100%
	testtime: 60s
	test: vm-rw
	cpufreq_governor: performance


Details are as below:
-------------------------------------------------------------------------------------------------->


The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20261028/202610280223.6ff1abde-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-2sp3/vm-rw/stress-ng/60s

commit: 
  v7.2-rc7
  333238da9a ("sched: Update time before requeueing delayed entities")

        v7.2-rc7 333238da9a193ffc58792995f3e
---------------- --------------------------- 
         %stddev     %change         %stddev
             \          |                \  
 5.011e+08           +35.9%  6.808e+08 ± 35%  stress-ng.time.voluntary_context_switches
 2.519e+08           +36.4%  3.436e+08 ± 36%  stress-ng.vm-rw.ops
   4200915           +36.4%    5729669 ± 36%  stress-ng.vm-rw.ops_per_sec


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