From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 506F6E92721 for ; Thu, 5 Oct 2023 15:52:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236364AbjJEPw4 (ORCPT ); Thu, 5 Oct 2023 11:52:56 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36412 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234301AbjJEPvS (ORCPT ); Thu, 5 Oct 2023 11:51:18 -0400 Received: from desiato.infradead.org (desiato.infradead.org [IPv6:2001:8b0:10b:1:d65d:64ff:fe57:4e05]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 71ED31AA; Thu, 5 Oct 2023 08:11:53 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=desiato.20200630; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=o2YxsTk1skEg1zkGIfIcr75SCuwR3u/h7Q16ZDMeKGQ=; b=Pmpqe2ha+itDC41eYUnmhi0Hln 8lHRScG/U8h+n9/2paGxi+wr8Ld1tMzOGiOUp6IAAXXLp8eJGNl4qe9B+N0ECUcVaM1ZpZvmqIYe/ sPUAL8PtEPGHrzbeeTqUW7Vx4AyV4CfBE/vJLJ5mw3AYWqRiCUICzRHQsJ50CcKlTWCtp4sc7ZSqQ 66glhV+56UP10wPEX06EBH8dcmjGKrEowFC30A3sI5UlcEmndWfV0yVBdxxeFPJAk1BbTmqwr2KM/ 3kDOKQ0f8Qpfr+DrKURkKZKrhzlNu+UYCRekgApCxy/ZWgf5w14XKs+8EO0Jq825rrQZdjzJpNFjf kxH4Iq8A==; Received: from j130084.upc-j.chello.nl ([24.132.130.84] helo=noisy.programming.kicks-ass.net) by desiato.infradead.org with esmtpsa (Exim 4.96 #2 (Red Hat Linux)) id 1qoQ0Y-00BmeE-0M; Thu, 05 Oct 2023 15:11:23 +0000 Received: by noisy.programming.kicks-ass.net (Postfix, from userid 1000) id 3A75B300451; Thu, 5 Oct 2023 17:11:23 +0200 (CEST) Date: Thu, 5 Oct 2023 17:11:23 +0200 From: Peter Zijlstra To: Biju Das Cc: "m.szyprowski@samsung.com" , "bsegall@google.com" , "bristot@redhat.com" , "chris.hyser@oracle.com" , "corbet@lwn.net" , "dietmar.eggemann@arm.com" , "efault@gmx.de" , "gregkh@linuxfoundation.org" , "joel@joelfernandes.org" , "joshdon@google.com" , "juri.lelli@redhat.com" , "kprateek.nayak@amd.com" , "linux-kernel@vger.kernel.org" , "mingo@kernel.org" , "patrick.bellasi@matbug.net" , Pavel Machek , "pjt@google.com" , "qperret@google.com" , "qyousef@layalina.io" , "rostedt@goodmis.org" , "tglx@linutronix.de" , "tim.c.chen@linux.intel.com" , "timj@gnu.org" , "vincent.guittot@linaro.org" , "youssefesmat@chromium.org" , "yu.c.chen@intel.com" , "mgorman@suse.de" , "linux-renesas-soc@vger.kernel.org" Subject: Re: [PATCH] sched/fair: fix pick_eevdf to always find the correct se Message-ID: <20231005151123.GD743@noisy.programming.kicks-ass.net> References: <20231005150258.GA36277@noisy.programming.kicks-ass.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20231005150258.GA36277@noisy.programming.kicks-ass.net> Precedence: bulk List-ID: X-Mailing-List: linux-renesas-soc@vger.kernel.org On Thu, Oct 05, 2023 at 05:02:58PM +0200, Peter Zijlstra wrote: > On Thu, Oct 05, 2023 at 07:31:34AM +0000, Biju Das wrote: > > > [ 26.099203] EEVDF scheduling fail, picking leftmost > > This, that the problem.. the rest is just noise because printk stinks. > > Weirdly have not seen that trigger, and I've been running with this > patch on for a few days now :/ I've killed the patch for now, will try again once we figure out what goes side-ways. Thanks!