Re: [linus:master] [timers] 7ee9887703: stress-ng.uprobe.ops_per_sec -17.1% regression

Frederic Weisbecker
2024-04-01T22:46:17Z

Le Wed, Mar 27, 2024 at 04:39:17PM +0800, kernel test robot a écrit :
>
>
> Hello,
>
>
> we reported
> "[tip:timers/core] [timers] 7ee9887703: netperf.Throughput_Mbps -1.2% regression"
> in
> https://lore.kernel.org/all/202403011511.24defbbd-oliver.sang@intel.com/
>
> now we noticed this commit is in mainline and we captured further results.
>
> still include netperf results for complete. below details FYI.
>
>
> kernel test robot noticed a -17.1% regression of stress-ng.uprobe.ops_per_sec
> on:

The good news is that I can reproduce.
It has made me spot something already:

https://lore.kernel.org/lkml/ZgsynV536q1L17IS@pavilion.home/T/#m28c37a943fdbcbadf0332cf9c32c350c74c403b0

But that's not enough to fix the regression. Investigation continues...

Thanks.