From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 47D04C4320A for ; Tue, 31 Aug 2021 13:28:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 288CE604AC for ; Tue, 31 Aug 2021 13:28:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236743AbhHaN3c (ORCPT ); Tue, 31 Aug 2021 09:29:32 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50976 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234395AbhHaN3b (ORCPT ); Tue, 31 Aug 2021 09:29:31 -0400 Received: from mail-io1-xd2e.google.com (mail-io1-xd2e.google.com [IPv6:2607:f8b0:4864:20::d2e]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 61E1FC061575; Tue, 31 Aug 2021 06:28:36 -0700 (PDT) Received: by mail-io1-xd2e.google.com with SMTP id b200so24734318iof.13; Tue, 31 Aug 2021 06:28:36 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=6JteJgmJ7TKB+IV4kzfEq5TxJ8GRQQk3aer0scCZatA=; b=nfF761u89YVrdWGrn/NHDrZAQh6OnOvEq0VNBTzGO6VS/UPXNP04HBntgLo+ke6rTG HCuarkcn3w4Q9xXuKIqI/8+5ujNfoUN9txwXomfHP6H3sRbQDA+Vbtj5q9basadryKqd GtdRJNDshmmqeSID9vQHMZz0fc9y7xVVYrKb7uzG4VzFwGTZFDvasRenukfMArUGyayR 6NObt5OT5fS7fHOO1vSFCdMf06LAFs1qEV09x1hCDt7Z7y/N7WqzG8Oi3iIx0xNtyemI 0X8UAOE1FNl9t5Tln71wsopXLmHuuXp4tXgiA7xT7kTxcV745wy82rpIJEPvyF176HaS GQxw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=6JteJgmJ7TKB+IV4kzfEq5TxJ8GRQQk3aer0scCZatA=; b=UVQOTjEnr3HNB1u4TRaxnK2yjWfDa55cVTZSKdSLew0V50LKy3XHJeiQNxeUFSRODF TmmKe+lvBDVRtD9jBv5E1tniwEXpp5apzOgVUKMPada/shyZiuEHlgvK69fKqR+820sa bxzJrWyUh+treLnRDbkQjR5tlSfM/RuXk0DMJsju2W5S4RZmOMDE6Y0xjIgm2LDmtPbM uvuY8NpSN8QQX65MTuRkcPJ6aF3GV4FXdoH5Telk32IF5XU4ZbyjIF3xKAfBkUYvRtkR 6hU9OxLRXqf27ORj8wS9xeut2/FKxZ7TnNjxtaHuH+TXtSVIKajRyFixHklDrqjOIQSz jwvw== X-Gm-Message-State: AOAM5310hxZokrAm8NLGh9u9oGxlJLNlvfDe6/Sj2nFVQWpoYz7ejp/J Zpqfq+QTw+Toix6RSKNCT9o4QA9lZw9zrZPir50= X-Google-Smtp-Source: ABdhPJwN/QMzxM+/WzHEzDEe3UaGAXo5qc0AJAKY0J4OrXj4jPqMIAF40FyesWrSQrWNr8i7YJnhwKZxWEefCxKB/RQ= X-Received: by 2002:a05:6638:5b5:: with SMTP id b21mr2945619jar.109.1630416515898; Tue, 31 Aug 2021 06:28:35 -0700 (PDT) MIME-Version: 1.0 References: <20210824112946.9324-1-laoar.shao@gmail.com> <20210824112946.9324-5-laoar.shao@gmail.com> In-Reply-To: From: Yafang Shao Date: Tue, 31 Aug 2021 21:27:59 +0800 Message-ID: Subject: Re: [PATCH v3 4/7] sched: make the output of schedstats independent of fair sched class To: Peter Zijlstra Cc: Ingo Molnar , Mel Gorman , Juri Lelli , Vincent Guittot , Dietmar Eggemann , Steven Rostedt , Benjamin Segall , Daniel Bristot de Oliveira , Alison Chaiken , kbuild test robot , LKML , linux-rt-users Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Aug 31, 2021 at 7:09 PM Peter Zijlstra wrote: > > On Tue, Aug 24, 2021 at 11:29:43AM +0000, Yafang Shao wrote: > > The per cpu stats can be show with /proc/sched_debug, which includes the > > per cpu schedstats of each task group. Currently these per cpu > > schedstats only show for the fair sched class. If we want to support > > other sched classes, we have to make these output independent of fair > > sched class. > > Arguably the whole rt group stuff needs to die, please don't enable it > further. Sure. -- Thanks Yafang