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=-6.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS autolearn=ham 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 74F0BC33CA2 for ; Thu, 9 Jan 2020 16:23:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4A2C020721 for ; Thu, 9 Jan 2020 16:23:34 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=cmpxchg-org.20150623.gappssmtp.com header.i=@cmpxchg-org.20150623.gappssmtp.com header.b="lGqemvVW" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1733200AbgAIQXd (ORCPT ); Thu, 9 Jan 2020 11:23:33 -0500 Received: from mail-qt1-f195.google.com ([209.85.160.195]:36133 "EHLO mail-qt1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731027AbgAIQXd (ORCPT ); Thu, 9 Jan 2020 11:23:33 -0500 Received: by mail-qt1-f195.google.com with SMTP id i13so1507089qtr.3 for ; Thu, 09 Jan 2020 08:23:32 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cmpxchg-org.20150623.gappssmtp.com; s=20150623; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=Ic0Na07q4rKOF9CHw3HtqPOvoy8xsU/UO9GgbNroDuA=; b=lGqemvVW4OOqPrDuZezl5BBtxwmAXizIMHe4UVwk+zlDPyw4FwahplSi/mvyDaJauz IPX2uHyaKd0Sf/zBOrLmtA8NPONopdSqjlTG+NOjOb96VLIXBB+yr2yVp2cEwRLoJRqp yiDV8+vMqRtMfB3GhV0QXLk1F5WC/zY2Ab510044lCMjzbjVKMZ8y/7O9EYtzYDbHilh Vc9uFe8Ra40ZulrNrBw2Y96/ituX/7AioYo7TBQT3+I3MTJtb7WN4U7yXOcn3+uE1g2E Ci+r8WAwVpaq0wpOA5DQ6XJKhopxt+nZ1AGmsEcq1Pf+z1ntw6CbPQ0HNfaSi3B0UfU3 CaBw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=Ic0Na07q4rKOF9CHw3HtqPOvoy8xsU/UO9GgbNroDuA=; b=QEk/trj3MkBjSyRI1tUeh3dLqZzQqaCG36FCAFkebRa+VXmx3iqT95KCDHHIz23WkF HD7UJrGz7gfssFSBNCmjmeCjGHLTH4vT0tIHLSctfxzf6bWmX4/PSL7cJzQRSmQ92fQ0 dGOWGH6PiQtIe56IzFCZmKH2YGLGD1h3F4q+4r8TE0bUZQbWqRt3uJxevBzW2Z2Nm0yF 2puYaDj4855g/6riOvIVMYS7+qyBcp9gI42Nq8zJKzFkrSB4eYQcou7dzp6J3tzJ4CD6 dbSt6HmeinemnU6fXsXyWHtz5+YgTGDOyCSwOdXqd8/GXeChllY/ILza0xula7N5x/kA b1Vw== X-Gm-Message-State: APjAAAVY3Vt4bXs+Xv9prFT6EJesSwQeLDnrXjnGq1DKm+5rmQJoQlOm 2GneENjAJnLusGDtjnUyQX3jbg== X-Google-Smtp-Source: APXvYqzOqTCKt2pGJzg1CPSGxDNqhRAO8deRTrmE6H7D5Urfe2sYa6m6Thv3olb273mgLSPrIdGu+g== X-Received: by 2002:ac8:65da:: with SMTP id t26mr8673037qto.5.1578587012176; Thu, 09 Jan 2020 08:23:32 -0800 (PST) Received: from localhost ([2620:10d:c091:500::1:d72d]) by smtp.gmail.com with ESMTPSA id g62sm3197786qkd.25.2020.01.09.08.23.31 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 09 Jan 2020 08:23:31 -0800 (PST) Date: Thu, 9 Jan 2020 11:23:30 -0500 From: Johannes Weiner To: Ivan Babrou Cc: linux-kernel , kernel-team , Ingo Molnar , Peter Zijlstra , Juri Lelli , Vincent Guittot , Dietmar Eggemann , Steven Rostedt , Ben Segall , Mel Gorman Subject: Re: Lower than expected CPU pressure in PSI Message-ID: <20200109162330.GC8547@cmpxchg.org> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Jan 08, 2020 at 11:47:10AM -0800, Ivan Babrou wrote: > P.S.: ./scripts/get_maintainer.pl kernel/sched/psi.c does not say > Johannes Weiner is a maintainer Mostly because psi is so intertwined with the scheduler that it's been maintained through the scheduler tree. But let's add an entry for it, the sched/ directory matching will ensure it shows all pertinent CCs: $ ./scripts/get_maintainer.pl kernel/sched/psi.c Johannes Weiner (maintainer:PRESSURE STALL INFORMATION (PSI)) Ingo Molnar (maintainer:SCHEDULER) Peter Zijlstra (maintainer:SCHEDULER) Juri Lelli (maintainer:SCHEDULER) Vincent Guittot (maintainer:SCHEDULER) Dietmar Eggemann (reviewer:SCHEDULER) Steven Rostedt (reviewer:SCHEDULER) Ben Segall (reviewer:SCHEDULER) Mel Gorman (reviewer:SCHEDULER) linux-kernel@vger.kernel.org (open list:SCHEDULER) --- >From b865e10129c97c81fb83c368456d2c24e54badab Mon Sep 17 00:00:00 2001 From: Johannes Weiner Date: Thu, 9 Jan 2020 10:36:58 -0500 Subject: [PATCH] MAINTAINERS: add maintenance information for psi Signed-off-by: Johannes Weiner --- MAINTAINERS | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/MAINTAINERS b/MAINTAINERS index bd5847e802de..228baf0e40a6 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -13367,6 +13367,12 @@ F: net/psample F: include/net/psample.h F: include/uapi/linux/psample.h +PRESSURE STALL INFORMATION (PSI) +M: Johannes Weiner +S: Maintained +F: kernel/sched/psi.c +F: include/linux/psi* + PSTORE FILESYSTEM M: Kees Cook M: Anton Vorontsov -- 2.24.1