From nobody Mon Sep 15 08:00:11 2025 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 7B22FC54EBE for ; Fri, 13 Jan 2023 14:15:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240122AbjAMOPv (ORCPT ); Fri, 13 Jan 2023 09:15:51 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40434 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S242056AbjAMONx (ORCPT ); Fri, 13 Jan 2023 09:13:53 -0500 Received: from mail-wr1-x42d.google.com (mail-wr1-x42d.google.com [IPv6:2a00:1450:4864:20::42d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5CD6E6A0F6 for ; Fri, 13 Jan 2023 06:12:49 -0800 (PST) Received: by mail-wr1-x42d.google.com with SMTP id h16so21184469wrz.12 for ; Fri, 13 Jan 2023 06:12:49 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=V6TGebPqxsiNn0n5diQ98jmCY4ZYb1DFPf0O/f9N2dY=; b=kyoXFhhH4LSSWG6wMnAiaJ07jZSSGb0HZosWr9qzMojEznxN8iqtffNopToVMH/hUL HSaY1Cobj6yL8RFFk3xyrySF23tDrhRt8LAziuIYTh00/5o47whlA/ZFBFM9ylDKTxFb 9EFinVeA81cLatWd6SqRGbpWGmlkmVG8EZed4HEvr+AN0C2rW8x4chbzfrnIS54JyJ6I Qbm/O6OMzFBNLWTO+oMb7JJhCWtZCEJCnmTlUCFxMNkAiUK2rwHwiU60qPQhW6lbzFyp +lDDdKUk9x57PDc9PGqF9Kmc9FzBaQJdyWVIrUZK4jp/KaNKJubP3jBIDRjMvoCUz+D4 rAyw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=V6TGebPqxsiNn0n5diQ98jmCY4ZYb1DFPf0O/f9N2dY=; b=k82yvB5Xxw/6RTpk12h6EeC4qlcphnng6mLF896j1r9rDA/bPtvD4iKcePwz4ThK4z 6q8mvTJCCgecbzULzNVFMrigrsNzRADSSmBKJthhCK+yDgngJR4rGo4jw0J04NNTxsAp lWjeyCuBpH/KfX/dJh8bM55dguBD36HlXl9SA+0lwRACKVFT0wm3fYnSAAhMQl5eoJhs RPn1KnmLPcYZrh40Bn0oo9YZEZTKjYSd0EfHu5d9Dk27v2O9oeW+KcfBuu45qqhfBGuH M+9SmhGar71lgospG2886DRpH4VyhYMl913B9DjPDRWbP/a2Pb5cYLaIgXIclh2H5P9d 7ugA== X-Gm-Message-State: AFqh2krh/cHksp7Q7dIf05Qoy0Zfnb4Qq2Px0rnvLXrEFQlt4+dMZ+Vh WIgAvGKgcCXcRG0h1t7y6l/w/Q== X-Google-Smtp-Source: AMrXdXtwqotZ1lPmONqBdvc8S+tasAFspxeuEERqj2CJCrSy7i2iX3ieCrQLetXyp400jA63Dj0qdg== X-Received: by 2002:a5d:4692:0:b0:2bb:e94c:fcbf with SMTP id u18-20020a5d4692000000b002bbe94cfcbfmr13297857wrq.52.1673619168889; Fri, 13 Jan 2023 06:12:48 -0800 (PST) Received: from vingu-book.. ([2a01:e0a:f:6020:1563:65bf:c344:661e]) by smtp.gmail.com with ESMTPSA id f7-20020a5d6647000000b002bbeb700c38sm13869919wrw.91.2023.01.13.06.12.47 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 13 Jan 2023 06:12:48 -0800 (PST) From: Vincent Guittot To: mingo@redhat.com, peterz@infradead.org, juri.lelli@redhat.com, dietmar.eggemann@arm.com, rostedt@goodmis.org, bsegall@google.com, mgorman@suse.de, bristot@redhat.com, vschneid@redhat.com, linux-kernel@vger.kernel.org, parth@linux.ibm.com, cgroups@vger.kernel.org Cc: qyousef@layalina.io, chris.hyser@oracle.com, patrick.bellasi@matbug.net, David.Laight@aculab.com, pjt@google.com, pavel@ucw.cz, tj@kernel.org, qperret@google.com, tim.c.chen@linux.intel.com, joshdon@google.com, timj@gnu.org, kprateek.nayak@amd.com, yu.c.chen@intel.com, youssefesmat@chromium.org, joel@joelfernandes.org, Vincent Guittot Subject: [PATCH v10 7/9] sched/core: Support latency priority with sched core Date: Fri, 13 Jan 2023 15:12:32 +0100 Message-Id: <20230113141234.260128-8-vincent.guittot@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230113141234.260128-1-vincent.guittot@linaro.org> References: <20230113141234.260128-1-vincent.guittot@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Take into account wakeup_latency_gran() when ordering the cfs threads. Signed-off-by: Vincent Guittot Tested-by: K Prateek Nayak --- kernel/sched/fair.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index 80ad27ddb4a1..a4bfa03d096c 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -11971,6 +11971,9 @@ bool cfs_prio_less(const struct task_struct *a, con= st struct task_struct *b, delta =3D (s64)(sea->vruntime - seb->vruntime) + (s64)(cfs_rqb->min_vruntime_fi - cfs_rqa->min_vruntime_fi); =20 + /* Take into account latency prio */ + delta -=3D wakeup_latency_gran(sea, seb); + return delta > 0; } #else --=20 2.34.1