Re: About rtla osnoise and timerlat usage
Prasad Pandit <[email protected]> Thu, 23 Feb 2023 00:43:56 +0530
| Newsgroups | org.kernel.vger.linux-trace-users |
|---|---|
| Message-ID | <CAE8KmOwULR795naEj=ygHgO3pufMG3EqBmj_dbdFwFyAQ_KQRg@mail.gmail.com> |
On Wed, 22 Feb 2023 at 23:36, Daniel Bristot de Oliveira <[email protected]> wrote: > > * Idle tune? > idle tuning is configuring the system to avoid deep idle states. > An easy way to do it is either setting idle=poll or enabling the "--dma-latency 0" in timerlat. > > But this is only a "problem" for timerlat/cyclictest, not for oslat/osnoise as they measure > the noise as they run - so they CPU does not go idle. * I see, got it. Thank you. --- - P J P