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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3D3A6C433F5 for ; Wed, 8 Dec 2021 02:46:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S243292AbhLHCto (ORCPT ); Tue, 7 Dec 2021 21:49:44 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49838 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233825AbhLHCtn (ORCPT ); Tue, 7 Dec 2021 21:49:43 -0500 Received: from mail-yb1-xb49.google.com (mail-yb1-xb49.google.com [IPv6:2607:f8b0:4864:20::b49]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5612CC061574 for ; Tue, 7 Dec 2021 18:46:12 -0800 (PST) Received: by mail-yb1-xb49.google.com with SMTP id s189-20020a252cc6000000b005c1f206d91eso2067107ybs.14 for ; Tue, 07 Dec 2021 18:46:12 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=date:message-id:mime-version:subject:from:to:cc; bh=CLGxeFiW2EzzDmPWUFxAzqS7mvDeKkKaNxO2GyXM6mc=; b=NnKahnPPy6IIxBK1lzam+MEvU6PVxcY4VOuzxTahPQ/mzG54LSlqsjrEk8LyYS9xuL S1aPKOSYaUQg1a6CoLb1gJ+sSlBADMbjxUQ3h9qwaccGprL724gfe+6aK7stynb58Il4 XSYlqgaMP6FzQBnyYkhog8OugVYKBTDHfG1CYstBcIEIJwOsb2VQkVlOgi2xs4xE1IrV 7GoMT3i/OAQlUrjt85bgcwfpluRyAoBhd8gHPE9gMI0Vrt2iLj9A8HkBgbIwnlJDQSmu 8wnufQTlRlrW+7UeAx80hf8Cqyy47+DueLbrn+q8rrNJ6M98iVbFEVL1njKAdN/IQtEL Z3DA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:message-id:mime-version:subject:from:to:cc; bh=CLGxeFiW2EzzDmPWUFxAzqS7mvDeKkKaNxO2GyXM6mc=; b=RRTceHBWIf6DxbwsZnJ44WJPKGigqtF7A9/64pdxpefDVDGpycFeS9/pqeXM5i32C1 WxRzODIL7hgx9EmOWSm62hbuGMpxZEaKkEQZHkg6mUdFORYiLym7nhTAOirZNKC2D9YX aiZmST++sjBmVw5mnbjDWHkrND72ARea8B7xS/3hmqkVldGPJSi9BO2dTPS5sFJ0uL2M HBJBS/lg2kaFqRM2Ko556OhhFwsaX840675BaVo8+sTOMEaS/En4sClWtwM6ConOS1kV L5DIxFyCCeEQoJIeL83ioAe8F+cw4WBvpozEtLkGm6pmBhbomtt4TnMDVqIrZIDGeo21 rh6A== X-Gm-Message-State: AOAM531dLB3k9+Toa0FhUz95NLCXQlP2INr8Qo6ZBkjwaprSQVEoXMGc qReye6I6ss6r7tou/mr+1PfSk2MfUJKa X-Google-Smtp-Source: ABdhPJx2u4yOo4d/+2DtTexBsEogDPpZDxD9U129h8ooJi1bFStxNrMahQBT4CJLt33fS1Sd0d2XNVgNy5ZF X-Received: from irogers.svl.corp.google.com ([2620:15c:2cd:202:57e:1dbb:34b4:8257]) (user=irogers job=sendgmr) by 2002:a25:2391:: with SMTP id j139mr54854197ybj.382.1638931571551; Tue, 07 Dec 2021 18:46:11 -0800 (PST) Date: Tue, 7 Dec 2021 18:45:45 -0800 Message-Id: <20211208024607.1784932-1-irogers@google.com> Mime-Version: 1.0 X-Mailer: git-send-email 2.34.1.400.ga245620fadb-goog Subject: [PATCH 00/22] Refactor perf cpumap From: Ian Rogers To: Andi Kleen , Jiri Olsa , Namhyung Kim , John Garry , Kajol Jain , "Paul A . Clarke" , Arnaldo Carvalho de Melo , Riccardo Mancini , Kan Liang , Peter Zijlstra , Ingo Molnar , Mark Rutland , Alexander Shishkin , linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org, Vineet Singh , James Clark , Mathieu Poirier , Suzuki K Poulose , Mike Leach , Leo Yan , coresight@lists.linaro.org, linux-arm-kernel@lists.infradead.org Cc: eranian@google.com, Ian Rogers Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Perf cpu map has various functions where a cpumap and index are passed in order to load the cpu. A problem with this is that the wrong index may be passed for the cpumap, causing problems like aggregation on the wrong CPU: https://lore.kernel.org/lkml/20211204023409.969668-1-irogers@google.com/ This patch set refactors the cpu map API, greatly reducing it and explicitly passing the cpu (rather than the pair) to functions that need it. Comments are added at the same time. Ian Rogers (22): libperf: Add comments to perf_cpu_map. perf stat: Add aggr creators that are passed a cpu. perf stat: Switch aggregation to use for_each loop perf stat: Switch to cpu version of cpu_map__get perf cpumap: Switch cpu_map__build_map to cpu function perf cpumap: Remove map+index get_socket perf cpumap: Remove map+index get_die perf cpumap: Remove map+index get_core perf cpumap: Remove map+index get_node perf cpumap: Add comments to aggr_cpu_id perf cpumap: Remove unused cpu_map__socket perf cpumap: Simplify equal function name. perf cpumap: Rename empty functions. perf cpumap: Document cpu__get_node and remove redundant function perf cpumap: Remove map from function names that don't use a map. perf cpumap: Remove cpu_map__cpu, use libperf function. perf cpumap: Refactor cpu_map__build_map perf cpumap: Rename cpu_map__get_X_aggr_by_cpu functions perf cpumap: Move 'has' function to libperf perf cpumap: Add some comments to cpu_aggr_map perf cpumap: Trim the cpu_aggr_map perf stat: Fix memory leak in check_per_pkg tools/lib/perf/cpumap.c | 7 +- tools/lib/perf/include/internal/cpumap.h | 9 +- tools/lib/perf/include/perf/cpumap.h | 1 + tools/perf/arch/arm/util/cs-etm.c | 16 +- tools/perf/builtin-ftrace.c | 2 +- tools/perf/builtin-sched.c | 6 +- tools/perf/builtin-stat.c | 273 ++++++++++++----------- tools/perf/tests/topology.c | 10 +- tools/perf/util/cpumap.c | 182 ++++++--------- tools/perf/util/cpumap.h | 102 ++++++--- tools/perf/util/cputopo.c | 2 +- tools/perf/util/env.c | 6 +- tools/perf/util/stat-display.c | 69 +++--- tools/perf/util/stat.c | 9 +- tools/perf/util/stat.h | 3 +- 15 files changed, 361 insertions(+), 336 deletions(-) -- 2.34.1.400.ga245620fadb-goog