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[23.128.96.18]) by mx.google.com with ESMTP id v18si1650954ejg.556.2020.05.27.03.39.23; Wed, 27 May 2020 03:39:45 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@unikie-com.20150623.gappssmtp.com header.s=20150623 header.b=VdrkliPQ; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387812AbgE0IPT (ORCPT + 99 others); Wed, 27 May 2020 04:15:19 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42782 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2387796AbgE0IPQ (ORCPT ); Wed, 27 May 2020 04:15:16 -0400 Received: from mail-lf1-x143.google.com (mail-lf1-x143.google.com [IPv6:2a00:1450:4864:20::143]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7BC38C03E97C for ; Wed, 27 May 2020 01:15:16 -0700 (PDT) Received: by mail-lf1-x143.google.com with SMTP id c12so13930642lfc.10 for ; Wed, 27 May 2020 01:15:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=unikie-com.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id; bh=IMgjWilr9oZ9iDIRuPwSPN6NiHr6WddYNQXqrrKqO5E=; b=VdrkliPQ9A8myqx8xMTEpUvvGryh9+5hiiCdvddlHerpe0rwKujSebDZMTmzFCuHPn /Dbx0YSB9v1s3F6uKNrg2CB2kKK5DcZlsoM3Dk5LRCPkg1Ujqe0jl7W4UMwIIHYJvu5e O7ZBXIR+YquL7keHElSgFWD9iyWe/IhCJCtGIjKW4gpUU6bwiUGgzqUObno1dnxetDoB neiLXwEA1M8wK8rEcOo3CACbKozNa2rGxSmgutAn5r7BqaPeqxSPs+aqWsLsVn8sUmRb 5JCOOrIJ7+/zgfSukvEq4j238kjro6gSqFeN/W+arT2HKkwRY0hSdERrTLEt3sANUksU OJnw== 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; bh=IMgjWilr9oZ9iDIRuPwSPN6NiHr6WddYNQXqrrKqO5E=; b=c2qqDDIIVdIAk5SFZSwuvPFdRZv5d3uf5e/XWJHFVo5JfXl97ZOZ/KZt/Z1j0Rb4Fx G6yl30ikexmqHerWwIjclWfJJAT6iReya7ITdVPeHJkCuKKtaCMxe2xhzxZOmqYdgjSB u+l/Ch+EqEPJq+971V+rq/nJZZiDFZ8YT2aHhEVEaDR02kZhBNmGLKZJLMdmfBQU9F/X jGAEodJ0KyyFwJ0oXpDNjOyE7OTZSUZB/kgTE4Uokh9Jay7zj9CFdns7b0ntCMs/vSO8 encPZJfEug8mi35Ui1L/A1QKDXcQLg9ucZYyLwk8kEv8idDppkbg/Rq2IPQ1HSR0Z+kd wsgQ== X-Gm-Message-State: AOAM5306d4ArOZ+f3a+HD4gsup7Gw9SpRCTjdet31l+NJgVzU8R1i2e2 PSrybES8q6DAaJfYNo5InftMdg== X-Received: by 2002:a19:987:: with SMTP id 129mr2541695lfj.8.1590567313739; Wed, 27 May 2020 01:15:13 -0700 (PDT) Received: from localhost.localdomain ([109.204.235.119]) by smtp.googlemail.com with ESMTPSA id n26sm533761ljc.42.2020.05.27.01.15.11 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 27 May 2020 01:15:12 -0700 (PDT) From: john mathew X-Google-Original-From: john mathew To: linux-doc@vger.kernel.org Cc: linux-kernel@vger.kernel.org, corbet@lwn.net, mingo@redhat.com, peterz@infradead.org, juri.lelli@redhat.com, vincent.guittot@linaro.org, dietmar.eggemann@arm.com, rostedt@goodmis.org, bsegall@google.com, mgorman@suse.de, bristot@redhat.com, tsbogend@alpha.franken.de, lukas.bulwahn@gmail.com, x86@kernel.org, linux-mips@vger.kernel.org, tglx@linutronix.de, mostafa.chamanara@gmail.com, willy@infradead.org, valentin.schneider@arm.com, srikar@linux.vnet.ibm.com, john mathew Subject: [RFC PATCH v6 0/3] Add scheduler overview documentation Date: Wed, 27 May 2020 11:15:02 +0300 Message-Id: <20200527081505.1783-1-John.Mathew@unikie.com> X-Mailer: git-send-email 2.17.1 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch series updates the scheduler documentation to add more topics wrt to scheduler overview. New sections are added to provide a brief overview of the kernel structs used by the scheduler, scheduler invocation, context switch and Capacity Aware Scheduling. Previous version of the patch was reviewed at: https://lore.kernel.org/lkml/20200514092637.15684-1-John.Mathew@unikie.com/ version 6: -Fix typos. version 5: -Fix description error on CAS version 4: -Added section on Capacity-Aware Scheduling -Reworded CFS recently added features. -Removed vruntime description from scheduler structs -Added description of idle and stopper sched classses version 3: -Fix spelling, spacing and typo errors. version 2: - Remove :c:func: directive as it was redundant - Limit document width (line symbol count) to 75 - Replace dot file with ASCII art - Describe prepare_task_switch(), ASID use, kernel/user transtion, MIPS FPU affinity correctly - Add missing references to files - Removed internal APIs from scheduler API reference - Described rq struct member as kernel-doc comments - Replaced CFS history with CFS current status - Added documentation for sched_class fields - Refined explanation of context swtich functionality - Replace CFS history with recent changes - Added kernel-doc comments for struct rq John Mathew (3): docs: scheduler: Restructure scheduler documentation. docs: scheduler: Add scheduler overview documentation docs: scheduler: Add introduction to scheduler context-switch Documentation/scheduler/arch-specific.rst | 14 + Documentation/scheduler/cfs-overview.rst | 102 ++++++ Documentation/scheduler/context-switching.rst | 125 ++++++++ Documentation/scheduler/index.rst | 33 +- .../scheduler/mips-context-switch.rst | 89 ++++++ Documentation/scheduler/overview.rst | 293 ++++++++++++++++++ Documentation/scheduler/sched-cas.rst | 92 ++++++ .../scheduler/sched-data-structs.rst | 182 +++++++++++ Documentation/scheduler/sched-debugging.rst | 14 + Documentation/scheduler/sched-features.rst | 21 ++ Documentation/scheduler/scheduler-api.rst | 31 ++ .../scheduler/x86-context-switch.rst | 65 ++++ kernel/sched/core.c | 28 +- kernel/sched/sched.h | 169 +++++++++- 14 files changed, 1238 insertions(+), 20 deletions(-) create mode 100644 Documentation/scheduler/arch-specific.rst create mode 100644 Documentation/scheduler/cfs-overview.rst create mode 100644 Documentation/scheduler/context-switching.rst create mode 100644 Documentation/scheduler/mips-context-switch.rst create mode 100644 Documentation/scheduler/overview.rst create mode 100644 Documentation/scheduler/sched-cas.rst create mode 100644 Documentation/scheduler/sched-data-structs.rst create mode 100644 Documentation/scheduler/sched-debugging.rst create mode 100644 Documentation/scheduler/sched-features.rst create mode 100644 Documentation/scheduler/scheduler-api.rst create mode 100644 Documentation/scheduler/x86-context-switch.rst -- 2.17.1