From nobody Wed Apr 8 18:39:32 2026 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 8DC06C38A02 for ; Fri, 28 Oct 2022 07:37:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230296AbiJ1Hh1 (ORCPT ); Fri, 28 Oct 2022 03:37:27 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43200 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230232AbiJ1HhF (ORCPT ); Fri, 28 Oct 2022 03:37:05 -0400 Received: from mail-wm1-x32c.google.com (mail-wm1-x32c.google.com [IPv6:2a00:1450:4864:20::32c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 09C0D1BC157 for ; Fri, 28 Oct 2022 00:37:03 -0700 (PDT) Received: by mail-wm1-x32c.google.com with SMTP id l16-20020a05600c4f1000b003c6c0d2a445so2909270wmq.4 for ; Fri, 28 Oct 2022 00:37:02 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=references:in-reply-to:message-id:date:subject:cc:to:from:from:to :cc:subject:date:message-id:reply-to; bh=BdpGOqqRR51x8v+WZgI/bsaGNfHn7spXAbo4XhwMNf4=; b=qe09/nTvE0G/K4zkvg/DsQq8oHH7SjmRLoGHceZha1Qm5MqWolIk7mFG0thT+nMLKF KmysZi86J4U/5hXr25vRhPcDCIKGkkN4zND+Y6vzOHSZIiS616i1X/GWi7nrmvq4ie7m lLtii7gv4j4T1PY82iCgfwruhI3BLqBkJDpGb11OxRWiYl3aCY0s/q0KJRN/tjm6C5gN 3voZULnWa+hrVgtCi0+hNUcAckmglcRPmebAzm21WrSsNcHebeMwX3ob8HJ8XM7ubRLs DYzs111nItJbuSSoUYYd+orcq/2ILdjTkCxJlJ4xOlJan/kuxb/YNFDB6+OI2htyxuDZ 1xXw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=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=BdpGOqqRR51x8v+WZgI/bsaGNfHn7spXAbo4XhwMNf4=; b=7HEOvTEgpDQy4QZVWLSUyvaAbAjt7i2l39M5nLbnHFHuvVkm8LvZlrLaL6OS3q956b 1RKPYrDsDPbYA8EFr8+6cvgRECPot0vA2eBER02MKlp3ZGedQmcZGwjJCynlT8y06sni T0h5CiSoRRzIUFfVeidn5Kb+mql/11NM4wblT6KzzUgxhMg/KraENseCJ/R6tb/hCeMQ +XXW7ztGBEbHbMDkRXnRpaq+B5BYEPQtf/KXqN1CzTsaFxk2TDU0vToBl7k4ooILZV12 TJMHTndd5chHbzIeoSO7D3Y1Mo+cZ0AH5PWQu78HRhEFmohUXVCKhUGY5v9nc+XUpxsT HS2w== X-Gm-Message-State: ACrzQf2LndxuOztrLoN+FQMrQpseIBaWLrqc7tzEyalpVgqox0cY2psj z0m5m9SD3Pe05bw/v8qIfmJVchcDNcujlg== X-Google-Smtp-Source: AMsMyM6JMlQgI0KTQiec9Wb39ca3UObbnUGlBuNJ0fs2qELcDKMz0vkGhGjWCHUwn4aI2rYT92yAUQ== X-Received: by 2002:a7b:c341:0:b0:3c4:552d:2ea7 with SMTP id l1-20020a7bc341000000b003c4552d2ea7mr8571521wmj.82.1666942622585; Fri, 28 Oct 2022 00:37:02 -0700 (PDT) Received: from localhost.localdomain ([2a01:e0a:f:6020:c12b:b448:f0a9:83ef]) by smtp.gmail.com with ESMTPSA id j8-20020a05600c190800b003b47e8a5d22sm7783129wmq.23.2022.10.28.00.37.00 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 28 Oct 2022 00:37:01 -0700 (PDT) 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 Cc: qais.yousef@arm.com, 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 v6 7/9] sched/core: Support latency priority with sched core Date: Fri, 28 Oct 2022 09:36:35 +0200 Message-Id: <20221028073637.31195-8-vincent.guittot@linaro.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20221028073637.31195-1-vincent.guittot@linaro.org> References: <20221028073637.31195-1-vincent.guittot@linaro.org> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Take into account wakeup_latency_gran() when ordering the cfs threads. Signed-off-by: Vincent Guittot --- kernel/sched/fair.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index 9583936ce30c..a7372f80b1ea 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -11439,6 +11439,9 @@ bool cfs_prio_less(struct task_struct *a, struct ta= sk_struct *b, bool in_fi) 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 2.17.1