lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Wed, 21 Oct 2020 14:19:50 +0200 From: Peter Zijlstra <peterz@...radead.org> To: Julia Lawall <julia.lawall@...ia.fr> Cc: Mel Gorman <mgorman@...e.de>, Ingo Molnar <mingo@...hat.com>, kernel-janitors@...r.kernel.org, Juri Lelli <juri.lelli@...hat.com>, Vincent Guittot <vincent.guittot@...aro.org>, Dietmar Eggemann <dietmar.eggemann@....com>, Steven Rostedt <rostedt@...dmis.org>, Ben Segall <bsegall@...gle.com>, Daniel Bristot de Oliveira <bristot@...hat.com>, linux-kernel@...r.kernel.org, Valentin Schneider <valentin.schneider@....com>, Gilles Muller <Gilles.Muller@...ia.fr>, "Rafael J. Wysocki" <rjw@...ysocki.net>, viresh.kumar@...aro.org, srinivas.pandruvada@...ux.intel.com Subject: Re: [PATCH] sched/fair: check for idle core On Wed, Oct 21, 2020 at 01:56:55PM +0200, Julia Lawall wrote: > Prior to 5.8, my machine was using intel_pstate and had few background > tasks. Thus the problem wasn't visible in practice. Starting with 5.8 > the kernel decided that intel_cpufreq would be more appropriate, which > introduced kworkers every 0.004 seconds on all cores. That still doesn't make any sense. Are you running the legacy on-demand thing or something? Rafael, Srinivas, Viresh, how come it defaults to that?
Powered by blists - more mailing lists