From nobody Wed Apr 8 18:38:48 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 1961AC38A02 for ; Fri, 28 Oct 2022 09:35:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230239AbiJ1Jft (ORCPT ); Fri, 28 Oct 2022 05:35:49 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34216 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229718AbiJ1JfZ (ORCPT ); Fri, 28 Oct 2022 05:35:25 -0400 Received: from mail-wm1-x32b.google.com (mail-wm1-x32b.google.com [IPv6:2a00:1450:4864:20::32b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 881F943634 for ; Fri, 28 Oct 2022 02:35:11 -0700 (PDT) Received: by mail-wm1-x32b.google.com with SMTP id v130-20020a1cac88000000b003bcde03bd44so6126323wme.5 for ; Fri, 28 Oct 2022 02:35:11 -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=zOLOF5KQfiM3VAF/LTTlIf8z8DkvCp0vZw3Xhv8+DGP/9V1ubeRFEVrxRFSTlAAIas H6/qxTvcmy51vmuCSjzc47frBlLaP7cXK3mOYbNZlRi736Lxygf+gsC7oV3ksszee2qT yF5HufCTZ+C3hn0Xpo38rgkjNmx2GRm/HXEB2/KMnavuz+g8BWoaME8AUYbCaWcj8VHE nl0nDaEK10WClhWkd/qf9YShlfFrJo6D6KcvrTbfvRDtv5XokNJExHW5U4a07MQ2lcX2 REYFI0sYsnZ8f2Kc3wm1XMWyy4qWQ5mhggw9D0W/j4jCaXPE7l3fA7xyrgZN9wE94+uj Hltg== 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=hrMzEDfxKp/paQEAZVPiTYQHYkSuba8pyppyttir/zbTJ8YDjwy4Kz61/smu3w+J41 9SVnHdZtsvCWEdkY8iMHJ9C8KyUGP0R3HbfEE7NA7uSe1A/RPfT+WAvkV66nQjvTuoMr h6IlI/H13R0r7QID57oSUHuLTo0DuiPFJVthuI15MR8b7naTXuvHlvn9w1VKOkfAwfMl UmP3R6pCvaKpxI2M75MO5UAY1QVOt2fZkrtbbvgMo7CrOWKXhfpBf8WhB3bqorEl9bpS fCwc76mhHCAxSmEzeFEPU2iU+bOrdt0gbU5xuBSYS1uPGW4Ar1K71gExKFG7bFCdqobO MoTg== X-Gm-Message-State: ACrzQf37eXI2Y1gNEx5aSPLTsDsd3yxd2is24TPWFhvbAjEe9EDHUMiU OPJBCKufnDIs640eLSUDXGEqXw== X-Google-Smtp-Source: AMsMyM4CU3U+RPFEHgAwQjydlwjNUidgvPB61PSCVCApAqQSDj3ft9Dh+Xuf4+/qi5dZD6xAuptTrw== X-Received: by 2002:adf:e610:0:b0:236:737f:8e5d with SMTP id p16-20020adfe610000000b00236737f8e5dmr15974537wrm.316.1666949710093; Fri, 28 Oct 2022 02:35:10 -0700 (PDT) Received: from localhost.localdomain ([2a01:e0a:f:6020:c12b:b448:f0a9:83ef]) by smtp.gmail.com with ESMTPSA id k3-20020a05600c1c8300b003c6b7f5567csm10909426wms.0.2022.10.28.02.35.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 28 Oct 2022 02:35:08 -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 v7 7/9] sched/core: Support latency priority with sched core Date: Fri, 28 Oct 2022 11:34:01 +0200 Message-Id: <20221028093403.6673-8-vincent.guittot@linaro.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20221028093403.6673-1-vincent.guittot@linaro.org> References: <20221028093403.6673-1-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