From nobody Sat Feb 7 15:48:13 2026 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.14]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 079DD28E0F; Mon, 8 Jul 2024 07:40:40 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.14 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1720424442; cv=none; b=rzBxRP+KI8nnbNTwtViL1+25o8F1SVcYPOOUQJr9CWGCOuaXKWefAGmjed3wPW5Z7ypyP+YZWMjPcujAA8bwTGnj0dkqciZn4zK35urBaSAbcCn3XaI7L/SMOOmw54YaiOoL4cHURkkrIo9fEts+3ToDDCcFQScBMqOroz6rpgo= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1720424442; c=relaxed/simple; bh=Jf9uNwduiPkFyLlEt8F+nEZMiB61bDwWBttgmoIpVdc=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=udjUaSVZ8vr9VBBYt/M5pMEqgCOefYO1XaaqBlX5kn6Wg2K+f2hQj+3IwCNzbich4PZWwAwTNySFODwHPHraxCeUo9fp2UdBgId+70ALbAkkda8EgQElraOy4uWWJXAOBPmYerAxU3Bvc+GEgJ2OV5aQa8IUJpZj2WemQb9NH9w= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=none smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=fPA+Dfzj; arc=none smtp.client-ip=192.198.163.14 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="fPA+Dfzj" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1720424441; x=1751960441; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=Jf9uNwduiPkFyLlEt8F+nEZMiB61bDwWBttgmoIpVdc=; b=fPA+Dfzj3nwXziJKvEbIm8cCJQsmTFAGkG++Po56Agtkp0OAFd1sZAXX pRTKnvQ8oU72D4SdodqcM24fdFY7u9dhONAhBCF9TH+1hsZ4Nnb/T/W63 sFdlUITxSJmkt9ojb1eJH/BK0KiFkndxZt3IIGFzi68QPv2jMND0enaUc jWWQ44PqPxaXbDHH4kM27F6K6UiARJUo9TTewVrqqN6b2BdRBiCL8nkOU KZ/kfJg1TPtTbs+Kj9KPI2za+zu1yS7Pvueuqz06AHVCDvgmHJJ60EqDB /aEQinp2tmG+uYLnqYPe8He2vWJk81nLZ5DXhDLrFv2akTMJL/TvJNfJb Q==; X-CSE-ConnectionGUID: Tm1Wc7erTUu24QhWypNMSw== X-CSE-MsgGUID: 9g3bnN7WTnm1wL59ggBT8g== X-IronPort-AV: E=McAfee;i="6700,10204,11126"; a="17819213" X-IronPort-AV: E=Sophos;i="6.09,191,1716274800"; d="scan'208";a="17819213" Received: from fmviesa003.fm.intel.com ([10.60.135.143]) by fmvoesa108.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 Jul 2024 00:40:41 -0700 X-CSE-ConnectionGUID: of7PyLS0QTaXWjv1znmftA== X-CSE-MsgGUID: SrxYT8R0TBSooUaj+1MsUQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.09,191,1716274800"; d="scan'208";a="51774081" Received: from emr.sh.intel.com ([10.112.229.56]) by fmviesa003.fm.intel.com with ESMTP; 08 Jul 2024 00:40:37 -0700 From: Dapeng Mi To: Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Namhyung Kim , Ian Rogers , Adrian Hunter , Alexander Shishkin , Kan Liang Cc: linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org, Yongwei Ma , Dapeng Mi , Dapeng Mi Subject: [Patch v2 1/5] perf x86/topdown: Complete topdown slots/metrics events check Date: Mon, 8 Jul 2024 14:42:00 +0000 Message-Id: <20240708144204.839486-2-dapeng1.mi@linux.intel.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20240708144204.839486-1-dapeng1.mi@linux.intel.com> References: <20240708144204.839486-1-dapeng1.mi@linux.intel.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" It's not complete to check whether an event is a topdown slots or topdown metrics event by only comparing the event name since user may assign the event by RAW format, e.g. perf stat -e '{instructions,cpu/r400/,cpu/r8300/}' sleep 1 Performance counter stats for 'sleep 1': instructions cpu/r400/ cpu/r8300/ 1.002917796 seconds time elapsed 0.002955000 seconds user 0.000000000 seconds sys The RAW format slots and topdown-be-bound events are not recognized and not regroup the events, and eventually cause error. Thus add two helpers arch_is_topdown_slots()/arch_is_topdown_metrics() to detect whether an event is topdown slots/metrics event by comparing the event config directly, and use these two helpers to replace the original event name comparisons. Signed-off-by: Dapeng Mi --- tools/perf/arch/x86/util/evlist.c | 8 +++--- tools/perf/arch/x86/util/evsel.c | 3 ++- tools/perf/arch/x86/util/topdown.c | 43 +++++++++++++++++++++++++++++- tools/perf/arch/x86/util/topdown.h | 2 ++ 4 files changed, 50 insertions(+), 6 deletions(-) diff --git a/tools/perf/arch/x86/util/evlist.c b/tools/perf/arch/x86/util/e= vlist.c index b1ce0c52d88d..332e8907f43e 100644 --- a/tools/perf/arch/x86/util/evlist.c +++ b/tools/perf/arch/x86/util/evlist.c @@ -78,14 +78,14 @@ int arch_evlist__cmp(const struct evsel *lhs, const str= uct evsel *rhs) if (topdown_sys_has_perf_metrics() && (arch_evsel__must_be_in_group(lhs) || arch_evsel__must_be_in_group(rh= s))) { /* Ensure the topdown slots comes first. */ - if (strcasestr(lhs->name, "slots") && !strcasestr(lhs->name, "uops_retir= ed.slots")) + if (arch_is_topdown_slots(lhs)) return -1; - if (strcasestr(rhs->name, "slots") && !strcasestr(rhs->name, "uops_retir= ed.slots")) + if (arch_is_topdown_slots(rhs)) return 1; /* Followed by topdown events. */ - if (strcasestr(lhs->name, "topdown") && !strcasestr(rhs->name, "topdown"= )) + if (arch_is_topdown_metrics(lhs) && !arch_is_topdown_metrics(rhs)) return -1; - if (!strcasestr(lhs->name, "topdown") && strcasestr(rhs->name, "topdown"= )) + if (!arch_is_topdown_metrics(lhs) && arch_is_topdown_metrics(rhs)) return 1; } =20 diff --git a/tools/perf/arch/x86/util/evsel.c b/tools/perf/arch/x86/util/ev= sel.c index 090d0f371891..181f2ba0bb2a 100644 --- a/tools/perf/arch/x86/util/evsel.c +++ b/tools/perf/arch/x86/util/evsel.c @@ -6,6 +6,7 @@ #include "util/pmu.h" #include "util/pmus.h" #include "linux/string.h" +#include "topdown.h" #include "evsel.h" #include "util/debug.h" #include "env.h" @@ -44,7 +45,7 @@ bool arch_evsel__must_be_in_group(const struct evsel *evs= el) strcasestr(evsel->name, "uops_retired.slots")) return false; =20 - return strcasestr(evsel->name, "topdown") || strcasestr(evsel->name, "slo= ts"); + return arch_is_topdown_metrics(evsel) || arch_is_topdown_slots(evsel); } =20 int arch_evsel__hw_name(struct evsel *evsel, char *bf, size_t size) diff --git a/tools/perf/arch/x86/util/topdown.c b/tools/perf/arch/x86/util/= topdown.c index 3f9a267d4501..e805065bb7e1 100644 --- a/tools/perf/arch/x86/util/topdown.c +++ b/tools/perf/arch/x86/util/topdown.c @@ -32,6 +32,47 @@ bool topdown_sys_has_perf_metrics(void) } =20 #define TOPDOWN_SLOTS 0x0400 +bool arch_is_topdown_slots(const struct evsel *evsel) +{ + if (evsel->core.attr.config =3D=3D TOPDOWN_SLOTS) + return true; + + return false; +} + +static int compare_topdown_event(void *vstate, struct pmu_event_info *info) +{ + int *config =3D vstate; + int event =3D 0; + int umask =3D 0; + char *str; + + str =3D strcasestr(info->str, "event=3D"); + if (str) + sscanf(str, "event=3D%x", &event); + + str =3D strcasestr(info->str, "umask=3D"); + if (str) + sscanf(str, "umask=3D%x", &umask); + + if (strcasestr(info->name, "topdown") && event =3D=3D 0 && + *config =3D=3D (event | umask << 8)) + return 1; + + return 0; +} + +bool arch_is_topdown_metrics(const struct evsel *evsel) +{ + struct perf_pmu *pmu =3D evsel__find_pmu(evsel); + int config =3D evsel->core.attr.config; + + if (pmu && perf_pmu__for_each_event(pmu, false, &config, + compare_topdown_event)) + return true; + + return false; +} =20 /* * Check whether a topdown group supports sample-read. @@ -44,7 +85,7 @@ bool arch_topdown_sample_read(struct evsel *leader) if (!evsel__sys_has_perf_metrics(leader)) return false; =20 - if (leader->core.attr.config =3D=3D TOPDOWN_SLOTS) + if (arch_is_topdown_slots(leader)) return true; =20 return false; diff --git a/tools/perf/arch/x86/util/topdown.h b/tools/perf/arch/x86/util/= topdown.h index 46bf9273e572..1bae9b1822d7 100644 --- a/tools/perf/arch/x86/util/topdown.h +++ b/tools/perf/arch/x86/util/topdown.h @@ -3,5 +3,7 @@ #define _TOPDOWN_H 1 =20 bool topdown_sys_has_perf_metrics(void); +bool arch_is_topdown_slots(const struct evsel *evsel); +bool arch_is_topdown_metrics(const struct evsel *evsel); =20 #endif --=20 2.40.1