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 CC088E81E1D for ; Fri, 6 Oct 2023 16:55:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232838AbjJFQzo (ORCPT ); Fri, 6 Oct 2023 12:55:44 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42926 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230223AbjJFQzm (ORCPT ); Fri, 6 Oct 2023 12:55:42 -0400 Received: from mout.gmx.net (mout.gmx.net [212.227.15.15]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 36BF4BF; Fri, 6 Oct 2023 09:55:39 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.de; s=s31663417; t=1696611274; x=1697216074; i=efault@gmx.de; bh=MCAADQhbSkE3KtyWK709uz6mAeBmApXYof1OrAn54Sk=; h=X-UI-Sender-Class:Subject:From:To:Cc:Date:In-Reply-To:References; b=kbLAo5rWYcEnQEiu7bJqiOfQYlQUTQppuG8uo5j+dIM6ZxVuBFfSrw62rFE4QHLDYhq0DXcGDtw q17773XMh+BZLNZuYtOvCT0tjQjLnk6UBP+jC+wkWHvMvyI309n3gWK6xHoadML4jSEMdxbanGxFQ nGuo34ekMPXYbzEsb0jOkt6twetjk0spAfF29I1J6z1mc5aQo1WU5soITSw1M+mFmN6/qsSDMOoCv cINhJYW6LE8FggiWTG9dTXvBWn18lFBACFL0b7BVAoCyY5rTAEFyqr6kWYmXrGw2tnwDymAIUb5uM xQQU1qu396d7+u7Ql8djlywvbYKEs97pDARg== X-UI-Sender-Class: 724b4f7f-cbec-4199-ad4e-598c01a50d3a Received: from homer.fritz.box ([185.191.217.82]) by mail.gmx.net (mrgmx005 [212.227.17.190]) with ESMTPSA (Nemesis) id 1M7b2d-1qwl7P18vt-0080sw; Fri, 06 Oct 2023 18:54:34 +0200 Message-ID: <6d9da2d1ae8bd90a176cf457e42da79db4353fa9.camel@gmx.de> Subject: Re: [PATCH] sched/fair: fix pick_eevdf to always find the correct se From: Mike Galbraith To: Peter Zijlstra Cc: Marek Szyprowski , Biju Das , "bsegall@google.com" , "bristot@redhat.com" , "chris.hyser@oracle.com" , "corbet@lwn.net" , "dietmar.eggemann@arm.com" , "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" Date: Fri, 06 Oct 2023 18:54:30 +0200 In-Reply-To: <20231006155501.GH36277@noisy.programming.kicks-ass.net> References: <20231005150258.GA36277@noisy.programming.kicks-ass.net> <553e2ee4-ab3a-4635-a74f-0ba4cc03f3f9@samsung.com> <867f5121d7d010cacf938c293f862b0cea560ec2.camel@gmx.de> <20231006140042.GG36277@noisy.programming.kicks-ass.net> <20231006155501.GH36277@noisy.programming.kicks-ass.net> Content-Type: text/plain; charset="UTF-8" User-Agent: Evolution 3.42.4 MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Provags-ID: V03:K1:dXaYts8Tdu0lpth/DZMGohzfPWpV2IYb4OchV8l/56P8m7JTTQa WpjD4kPFIX3BnBliClUP+8EaLn9RW+39yuYuIAjWWZItN6XUg6VgLmprE/elJX7mThjADGG hTQMyv+ejoRb/BLzQy4iGIpC/TxScxxC+Z5CMNOzNZzNXaU2xn5t6AJCHzVIeXuD0eGFShL qCaNscNCT2LVOno3CmKyw== UI-OutboundReport: notjunk:1;M01:P0:iOVDf4fmlyA=;tRzYy9GU/97AK7WYzHrWeaxQgKT FGLmeNorcAx8rpdHc3KuF2Xv659srBQibo9wNP8F2YgFSB8zwcBlZBBFvMGmPtX6AVdW1lCIH 0k1oCe14LDyGjq1rmesB1gAYq3wbOFj+AAmJgbyGta2e1D6AQWVW80JWPp1kOTbhIXSvTpYky 9A574woJ7ZFQ53NtDsR+n1NMy/ZALK01FDUpzYVEIcM0zmTR2TUkO3DDe6CmpYo0I+byexuZP rpwuAJgi7YsMeWr+1r15xC7VqcCGdsY3SIztZf5tATgCT78lbgHya9DyUWWs7GlIzJaT41BSz 9io4lHLqsqxJIuCJ9Hna2Xz/+S5MT+lfldqe7Cm2bAWHjsot98qZAVbbbpkkmgqTSWQfD7CPo K3JrujLaMxra732TbsuwptSYCxyrLzRMYOks34Uz9v7+HB9ntsB2pUUsH4XbfqSs/FwrrFsL5 ouKILakUbXFbPsLUPNvYe5/k92PJIqvi84tiLsQCZwp6zCuoub+0ypVhSU1yjNLUN384/UNJF u6wMRCD2z/s3UPcn9uw2BDKAWx5LrBNESer+SXle5a1mZMfHufdSAu+59k5h4bgxFPH41a5ST YQ+mRrL6b/Lkp7IKEqQB7EJ84ysIiyEBITMXZM9s9Jn8c7Em6FV1ziUVcRz8krYsAt8r6albm 1erKuBdT0/sPpu71fNMYsy0Hi8FTQn8a4bY9uo1jBKAQxbPQ5NrGewdScJHRX7zSakELDejhX hhgaoWBhpkHqeyBs54Qtm4Ry78EoeD34X4VF9qdTr4usOU5Am44noRtbxvJyqyDOLLOwkCOcu bsHQNtV+NnzbtczwZq3Q6mVLfXZtW71g7RsOoWtusLI2rIAw1cjNu2ocwbH4xGElFy81SpE3P MXATOrFtGlgYGdUv9knNXhqK8zQkZPTbNAcwftbaJw+Taj64hn5HECoFeDLAb2QQeA1z1ZAcx kJXb3g== Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 2023-10-06 at 17:55 +0200, Peter Zijlstra wrote: > If I create two groups (or two users with autogroup on) and have them > both build a kernel I do indeed get splat. Ah, my desktop setup is two wide konsole instances with 14 tabs each for old testament /me (dang dinky universe) and internet stuff running as a mere mortal, so lots of groups. -Mike