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

From: Oliver Sang
Date: Mon Apr 01 2024 - 21:46:51 EST


hi, Frederic Weisbecker,

On Tue, Apr 02, 2024 at 12:46:15AM +0200, Frederic Weisbecker wrote:
> 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@xxxxxxxxx/
> >
> > 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@xxxxxxxxxxxxx/T/#m28c37a943fdbcbadf0332cf9c32c350c74c403b0
>
> But that's not enough to fix the regression. Investigation continues...

Thanks a lot for information! if you want us test any patch, please let us know.

>
> Thanks.