From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756505AbbGGIj7 (ORCPT ); Tue, 7 Jul 2015 04:39:59 -0400 Received: from mga09.intel.com ([134.134.136.24]:35197 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756229AbbGGIjc (ORCPT ); Tue, 7 Jul 2015 04:39:32 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.15,421,1432623600"; d="scan'208";a="742016267" From: Adrian Hunter To: Peter Zijlstra Cc: Andi Kleen , Arnaldo Carvalho de Melo , Ingo Molnar , linux-kernel@vger.kernel.org, Jiri Olsa , Stephane Eranian , mathieu.poirier@linaro.org, Pawel Moll Subject: [PATCH V3 4/4] perf script: Add option --show-switch-events Date: Tue, 7 Jul 2015 11:36:42 +0300 Message-Id: <1436258202-6540-5-git-send-email-adrian.hunter@intel.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1436258202-6540-1-git-send-email-adrian.hunter@intel.com> References: <1436258202-6540-1-git-send-email-adrian.hunter@intel.com> Organization: Intel Finland Oy, Registered Address: PL 281, 00181 Helsinki, Business Identity Code: 0357606 - 4, Domiciled in Helsinki Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add option --show-switch-events to show switch events in a similar fashion to --show-task-events and --show-mmap-events. Signed-off-by: Adrian Hunter --- tools/perf/Documentation/perf-script.txt | 3 +++ tools/perf/builtin-script.c | 31 +++++++++++++++++++++++++++++++ 2 files changed, 34 insertions(+) diff --git a/tools/perf/Documentation/perf-script.txt b/tools/perf/Documentation/perf-script.txt index c82df572fac2..beca47ae9dbf 100644 --- a/tools/perf/Documentation/perf-script.txt +++ b/tools/perf/Documentation/perf-script.txt @@ -222,6 +222,9 @@ OPTIONS --show-mmap-events Display mmap related events (e.g. MMAP, MMAP2). +--show-switch-events + Display context switch events i.e. events of type PERF_RECORD_SWITCH. + --header Show perf.data header. diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c index 24809787369f..b3a00c93bfa1 100644 --- a/tools/perf/builtin-script.c +++ b/tools/perf/builtin-script.c @@ -623,6 +623,7 @@ struct perf_script { struct perf_session *session; bool show_task_events; bool show_mmap_events; + bool show_switch_events; }; static int process_attr(struct perf_tool *tool, union perf_event *event, @@ -813,6 +814,32 @@ static int process_mmap2_event(struct perf_tool *tool, return 0; } +static int process_switch_event(struct perf_tool *tool, + union perf_event *event, + struct perf_sample *sample, + struct machine *machine) +{ + struct thread *thread; + struct perf_script *script = container_of(tool, struct perf_script, tool); + struct perf_session *session = script->session; + struct perf_evsel *evsel = perf_evlist__first(session->evlist); + + if (perf_event__process_switch(tool, event, sample, machine) < 0) + return -1; + + thread = machine__findnew_thread(machine, sample->pid, + sample->tid); + if (thread == NULL) { + pr_debug("problem processing SWITCH event, skipping it.\n"); + return -1; + } + + print_sample_start(sample, thread, evsel); + perf_event__fprintf(event, stdout); + thread__put(thread); + return 0; +} + static void sig_handler(int sig __maybe_unused) { session_done = 1; @@ -834,6 +861,8 @@ static int __cmd_script(struct perf_script *script) script->tool.mmap = process_mmap_event; script->tool.mmap2 = process_mmap2_event; } + if (script->show_switch_events) + script->tool.context_switch = process_switch_event; ret = perf_session__process_events(script->session); @@ -1618,6 +1647,8 @@ int cmd_script(int argc, const char **argv, const char *prefix __maybe_unused) "Show the fork/comm/exit events"), OPT_BOOLEAN('\0', "show-mmap-events", &script.show_mmap_events, "Show the mmap events"), + OPT_BOOLEAN('\0', "show-switch-events", &script.show_switch_events, + "Show context switch events (if recorded)"), OPT_BOOLEAN('f', "force", &file.force, "don't complain, do it"), OPT_CALLBACK_OPTARG(0, "itrace", &itrace_synth_opts, NULL, "opts", "Instruction Tracing options", -- 1.9.1