From patchwork Tue Oct 9 16:25:01 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thara Gopinath X-Patchwork-Id: 10632945 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 4B27D112B for ; Tue, 9 Oct 2018 16:25:32 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 3E0E428F2E for ; Tue, 9 Oct 2018 16:25:32 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 324EF290A8; Tue, 9 Oct 2018 16:25:32 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id DD9A028F2E for ; Tue, 9 Oct 2018 16:25:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727343AbeJIXnA (ORCPT ); Tue, 9 Oct 2018 19:43:00 -0400 Received: from mail-qt1-f195.google.com ([209.85.160.195]:34188 "EHLO mail-qt1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727298AbeJIXm7 (ORCPT ); Tue, 9 Oct 2018 19:42:59 -0400 Received: by mail-qt1-f195.google.com with SMTP id o17-v6so2313390qtr.1 for ; Tue, 09 Oct 2018 09:25:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=zIbq74SHzUmAAn9beXqSbIF0xv76+VwJaPbFBIeIe1U=; b=kdY7h6gD1j1ZOLtPzQxEfbc4s3OD13OAN015eqld8teNR3+nmmjs/yTd5FpiU0di87 qpUqMO8Ns1pedoP0cGypsMgs2UXMZqoWFLcxwWAjKO6dfseK3ibqVv3MH+mTC/ttnPl+ 8bAduK1OBfF087dvUgV/UImLxOwwIHScBIC9c= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=zIbq74SHzUmAAn9beXqSbIF0xv76+VwJaPbFBIeIe1U=; b=ed+lSxVu4bJoc8E/WMZzakkalAXuWPS9zZKr0LvQehRkD4JXjeb1EwAvCeEmTeNWBm ubLYX++K4jvLWwnBR3S5p5iF90eFUcaAPEpwhQvhDn4qZObYmoeHc2NAPOct9eIPmUQo UqpR6qBjKJDw/n99DXqqE13gfGB/VxDAvJQmK3mye37dJx1SmDtjcup8mT+q1ez9dopK D4BdqY+vhMt4sWHzzhvDX9EOzne0jn1+KYIJLmo2hs4mVUHUkoLkMbNshbQGmApecDwh ArJoAWU3r0+qm8DWtM/E7QHM1ggoK5dhz1U6PpdIOjikTroVX2G3ICcEU4GXhSBwDVFG cdXg== X-Gm-Message-State: ABuFfogvmEubk9nqqy9H31lDxC+RDAZdbqqieG9NjTLk3GGPYBYmR7NX Sz0y8dsgvwxZDu4/FxkK2oOnYw== X-Google-Smtp-Source: ACcGV602XfqXVNPD/Eg/092xZk0PMy7jAlLchI99z3G11vY0KKo70lEW4tCqakEIbaPNLs+84lDBbg== X-Received: by 2002:aed:3342:: with SMTP id u60-v6mr20271131qtd.177.1539102315988; Tue, 09 Oct 2018 09:25:15 -0700 (PDT) Received: from Thara-Work-Ubuntu.fios-router.home (pool-71-255-245-97.washdc.fios.verizon.net. [71.255.245.97]) by smtp.googlemail.com with ESMTPSA id o7-v6sm10441169qkc.67.2018.10.09.09.25.14 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Tue, 09 Oct 2018 09:25:15 -0700 (PDT) From: Thara Gopinath To: linux-kernel@vger.kernel.org, mingo@redhat.com, peterz@infradead.org, rui.zhang@intel.com Cc: gregkh@linuxfoundation.org, rafael@kernel.org, amit.kachhap@gmail.com, viresh.kumar@linaro.org, javi.merino@kernel.org, edubezval@gmail.com, daniel.lezcano@linaro.org, linux-pm@vger.kernel.org, quentin.perret@arm.com, ionela.voinescu@arm.com, vincent.guittot@linaro.org Subject: [RFC PATCH 6/7] sched/fair: update cpu_capcity to reflect thermal pressure Date: Tue, 9 Oct 2018 12:25:01 -0400 Message-Id: <1539102302-9057-7-git-send-email-thara.gopinath@linaro.org> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1539102302-9057-1-git-send-email-thara.gopinath@linaro.org> References: <1539102302-9057-1-git-send-email-thara.gopinath@linaro.org> Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP cpu_capacity relflects the maximum available capacity of a cpu. Thermal pressure on a cpu means this maximum available capacity is reduced. This patch reduces the average thermal pressure for a cpu from its maximum available capacity so that cpu_capacity reflects the actual available capacity. Signed-off-by: Thara Gopinath --- kernel/sched/fair.c | 1 + 1 file changed, 1 insertion(+) diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index 7deb1d0..8651e55 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -7497,6 +7497,7 @@ static unsigned long scale_rt_capacity(int cpu) used = READ_ONCE(rq->avg_rt.util_avg); used += READ_ONCE(rq->avg_dl.util_avg); + used += READ_ONCE(rq->avg_thermal.load_avg); if (unlikely(used >= max)) return 1;