From mboxrd@z Thu Jan 1 00:00:00 1970 From: Viresh Kumar Date: Fri, 23 Oct 2020 06:24:46 +0000 Subject: Re: [PATCH] sched/fair: check for idle core Message-Id: <20201023061246.irzbrl62baoawmqv@vireshk-i7> List-Id: References: <1603211879-1064-1-git-send-email-Julia.Lawall@inria.fr> <20201022071145.GM2628@hirez.programming.kicks-ass.net> <20201022104703.nw45dwor6wfn4ity@vireshk-i7> <34115486.YmRjPRKJaA@kreacher> In-Reply-To: <34115486.YmRjPRKJaA@kreacher> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: "Rafael J. Wysocki" Cc: Peter Zijlstra , Julia Lawall , Mel Gorman , Ingo Molnar , kernel-janitors@vger.kernel.org, Juri Lelli , Vincent Guittot , Dietmar Eggemann , Steven Rostedt , Ben Segall , Daniel Bristot de Oliveira , linux-kernel@vger.kernel.org, Valentin Schneider , Gilles Muller , srinivas.pandruvada@linux.intel.com On 22-10-20, 13:45, Rafael J. Wysocki wrote: > On Thursday, October 22, 2020 12:47:03 PM CEST Viresh Kumar wrote: > > And I am not really sure why we always wanted this backup performance > > governor to be there unless the said governors are built as module. > > Apparently, some old drivers had problems with switching frequencies fast enough > for ondemand to be used with them and the fallback was for those cases. AFAICS. Do we still need this ? Or better ask those platforms to individually enable both of them. -- viresh