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=0.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, HK_RANDOM_FROM,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 EE683C3A5A2 for ; Tue, 3 Sep 2019 15:43:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C447C2077B for ; Tue, 3 Sep 2019 15:43:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729692AbfICPnx (ORCPT ); Tue, 3 Sep 2019 11:43:53 -0400 Received: from mx1.redhat.com ([209.132.183.28]:50750 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728679AbfICPnw (ORCPT ); Tue, 3 Sep 2019 11:43:52 -0400 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 50B168553F; Tue, 3 Sep 2019 15:43:52 +0000 (UTC) Received: from flask (unknown [10.43.2.55]) by smtp.corp.redhat.com (Postfix) with SMTP id CBC3D194B2; Tue, 3 Sep 2019 15:43:48 +0000 (UTC) Received: by flask (sSMTP sendmail emulation); Tue, 03 Sep 2019 17:43:48 +0200 From: =?UTF-8?q?Radim=20Kr=C4=8Dm=C3=A1=C5=99?= To: linux-kernel@vger.kernel.org Cc: Ingo Molnar , Peter Zijlstra , Thomas Gleixner , Borislav Petkov , Dave Hansen , Steven Rostedt , "H. Peter Anvin" , Andy Lutomirski , =?UTF-8?q?Jirka=20Hladk=C3=BD?= , =?UTF-8?q?Ji=C5=99=C3=AD=20Voz=C3=A1r?= , x86@kernel.org Subject: [PATCH 0/2] sched/debug: add sched_update_nr_running tracepoint Date: Tue, 3 Sep 2019 17:43:38 +0200 Message-Id: <20190903154340.860299-1-rkrcmar@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.28]); Tue, 03 Sep 2019 15:43:52 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add a tracepoint for monitoring nr_running values, which is helpful in discovering scheduling imbalances. More information and most of the code is in [2/2], while [1/2] fixes a build issue that popped up because CREATE_TRACE_POINTS is now defined for several includes. Cc: Ingo Molnar Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: Borislav Petkov Cc: Dave Hansen Cc: Steven Rostedt Cc: "H. Peter Anvin" Cc: Andy Lutomirski Cc: Jirka Hladký Cc: Jiří Vozár Cc: x86@kernel.org Radim Krčmář (2): x86/mm/tlb: include tracepoints from tlb.c instead of mmu_context.h sched/debug: add sched_update_nr_running tracepoint arch/x86/include/asm/mmu_context.h | 2 -- arch/x86/mm/tlb.c | 2 ++ include/trace/events/sched.h | 22 ++++++++++++++++++++++ kernel/sched/core.c | 7 ++----- kernel/sched/fair.c | 2 -- kernel/sched/sched.h | 7 +++++++ 6 files changed, 33 insertions(+), 9 deletions(-) -- 2.23.0