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=-16.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT 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 A7B59C433B4 for ; Fri, 16 Apr 2021 14:07:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8E947610F7 for ; Fri, 16 Apr 2021 14:07:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236480AbhDPOIM (ORCPT ); Fri, 16 Apr 2021 10:08:12 -0400 Received: from mga11.intel.com ([192.55.52.93]:23091 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236380AbhDPOH3 (ORCPT ); Fri, 16 Apr 2021 10:07:29 -0400 IronPort-SDR: 0IYk5rKi7ZwPCJl+kwKyB7uSN3SueFwSg4a8RafqM2wWUFGjEMLQeqfrC7pLgwE4dwvV0hrM/R c++5CsuxnJ+g== X-IronPort-AV: E=McAfee;i="6200,9189,9956"; a="191854348" X-IronPort-AV: E=Sophos;i="5.82,226,1613462400"; d="scan'208";a="191854348" Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Apr 2021 07:07:04 -0700 IronPort-SDR: q2/IZM4JinhIc5I+CidRHaRW3ZROQb/Qn5AHseB2YSZsBLappXBjfgqh2+QfkuXuFMXFVZhpJ7 Gzq3wS3mnm+w== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.82,226,1613462400"; d="scan'208";a="612766843" Received: from kbl-ppc.sh.intel.com ([10.239.159.163]) by fmsmga006.fm.intel.com with ESMTP; 16 Apr 2021 07:07:01 -0700 From: Jin Yao To: acme@kernel.org, jolsa@kernel.org, peterz@infradead.org, mingo@redhat.com, alexander.shishkin@linux.intel.com Cc: Linux-kernel@vger.kernel.org, ak@linux.intel.com, kan.liang@intel.com, yao.jin@intel.com, Jin Yao Subject: [PATCH v4 16/25] perf stat: Warn group events from different hybrid PMU Date: Fri, 16 Apr 2021 22:05:08 +0800 Message-Id: <20210416140517.18206-17-yao.jin@linux.intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210416140517.18206-1-yao.jin@linux.intel.com> References: <20210416140517.18206-1-yao.jin@linux.intel.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org If a group has events which are from different hybrid PMUs, shows a warning: "WARNING: events in group from different hybrid PMUs!" This is to remind the user not to put the core event and atom event into one group. Next, just disable grouping. # perf stat -e "{cpu_core/cycles/,cpu_atom/cycles/}" -a -- sleep 1 WARNING: events in group from different hybrid PMUs! WARNING: grouped events cpus do not match, disabling group: anon group { cpu_core/cycles/, cpu_atom/cycles/ } Performance counter stats for 'system wide': 5,438,125 cpu_core/cycles/ 3,914,586 cpu_atom/cycles/ 1.004250966 seconds time elapsed Signed-off-by: Jin Yao --- v4: - No change. tools/perf/builtin-stat.c | 4 +++ tools/perf/util/evlist-hybrid.c | 47 ++++++++++++++++++++++++++++++ tools/perf/util/evlist-hybrid.h | 2 ++ tools/perf/util/evsel.c | 6 ++++ tools/perf/util/evsel.h | 1 + tools/perf/util/python-ext-sources | 2 ++ 6 files changed, 62 insertions(+) diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c index 0351b99d17a7..c429aae6eeb6 100644 --- a/tools/perf/builtin-stat.c +++ b/tools/perf/builtin-stat.c @@ -48,6 +48,7 @@ #include "util/pmu.h" #include "util/event.h" #include "util/evlist.h" +#include "util/evlist-hybrid.h" #include "util/evsel.h" #include "util/debug.h" #include "util/color.h" @@ -240,6 +241,9 @@ static void evlist__check_cpu_maps(struct evlist *evlist) struct evsel *evsel, *pos, *leader; char buf[1024]; + if (evlist__has_hybrid(evlist)) + evlist__warn_hybrid_group(evlist); + evlist__for_each_entry(evlist, evsel) { leader = evsel->leader; diff --git a/tools/perf/util/evlist-hybrid.c b/tools/perf/util/evlist-hybrid.c index e11998526f2e..db3f5fbdebe1 100644 --- a/tools/perf/util/evlist-hybrid.c +++ b/tools/perf/util/evlist-hybrid.c @@ -7,6 +7,7 @@ #include "../perf.h" #include "util/pmu-hybrid.h" #include "util/evlist-hybrid.h" +#include "debug.h" #include #include #include @@ -39,3 +40,49 @@ int evlist__add_default_hybrid(struct evlist *evlist, bool precise) return 0; } + +static bool group_hybrid_conflict(struct evsel *leader) +{ + struct evsel *pos, *prev = NULL; + + for_each_group_evsel(pos, leader) { + if (!evsel__is_hybrid(pos)) + continue; + + if (prev && strcmp(prev->pmu_name, pos->pmu_name)) + return true; + + prev = pos; + } + + return false; +} + +void evlist__warn_hybrid_group(struct evlist *evlist) +{ + struct evsel *evsel; + + evlist__for_each_entry(evlist, evsel) { + if (evsel__is_group_leader(evsel) && + evsel->core.nr_members > 1 && + group_hybrid_conflict(evsel)) { + pr_warning("WARNING: events in group from " + "different hybrid PMUs!\n"); + return; + } + } +} + +bool evlist__has_hybrid(struct evlist *evlist) +{ + struct evsel *evsel; + + evlist__for_each_entry(evlist, evsel) { + if (evsel->pmu_name && + perf_pmu__is_hybrid(evsel->pmu_name)) { + return true; + } + } + + return false; +} diff --git a/tools/perf/util/evlist-hybrid.h b/tools/perf/util/evlist-hybrid.h index e25861649d8f..19f74b4c340a 100644 --- a/tools/perf/util/evlist-hybrid.h +++ b/tools/perf/util/evlist-hybrid.h @@ -8,5 +8,7 @@ #include int evlist__add_default_hybrid(struct evlist *evlist, bool precise); +void evlist__warn_hybrid_group(struct evlist *evlist); +bool evlist__has_hybrid(struct evlist *evlist); #endif /* __PERF_EVLIST_HYBRID_H */ diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c index 0ba4daa09453..0f64a32ea9c5 100644 --- a/tools/perf/util/evsel.c +++ b/tools/perf/util/evsel.c @@ -47,6 +47,7 @@ #include "memswap.h" #include "util.h" #include "hashmap.h" +#include "pmu-hybrid.h" #include "../perf-sys.h" #include "util/parse-branch-options.h" #include @@ -2797,3 +2798,8 @@ void evsel__zero_per_pkg(struct evsel *evsel) hashmap__clear(evsel->per_pkg_mask); } } + +bool evsel__is_hybrid(struct evsel *evsel) +{ + return evsel->pmu_name && perf_pmu__is_hybrid(evsel->pmu_name); +} diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h index ff89196281bd..f6f90f68381b 100644 --- a/tools/perf/util/evsel.h +++ b/tools/perf/util/evsel.h @@ -453,4 +453,5 @@ struct perf_env *evsel__env(struct evsel *evsel); int evsel__store_ids(struct evsel *evsel, struct evlist *evlist); void evsel__zero_per_pkg(struct evsel *evsel); +bool evsel__is_hybrid(struct evsel *evsel); #endif /* __PERF_EVSEL_H */ diff --git a/tools/perf/util/python-ext-sources b/tools/perf/util/python-ext-sources index 845dd46e3c61..d7c976671e3a 100644 --- a/tools/perf/util/python-ext-sources +++ b/tools/perf/util/python-ext-sources @@ -37,3 +37,5 @@ util/units.c util/affinity.c util/rwsem.c util/hashmap.c +util/pmu-hybrid.c +util/fncache.c -- 2.17.1