Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933850Ab3FSBCb (ORCPT ); Tue, 18 Jun 2013 21:02:31 -0400 Received: from LGEMRELSE1Q.lge.com ([156.147.1.111]:60111 "EHLO LGEMRELSE1Q.lge.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932644Ab3FSBCa (ORCPT ); Tue, 18 Jun 2013 21:02:30 -0400 X-AuditID: 9c93016f-b7b6cae000007078-db-51c103236d03 From: Joonsoo Kim To: Arnaldo Carvalho de Melo Cc: Peter Zijlstra , Paul Mackerras , Ingo Molnar , linux-kernel@vger.kernel.org, Joonsoo Kim , Namhyung Kim Subject: [PATCH 1/3] perf record: support duration option to run during specified time Date: Wed, 19 Jun 2013 10:02:28 +0900 Message-Id: <1371603750-15053-1-git-send-email-iamjoonsoo.kim@lge.com> X-Mailer: git-send-email 1.7.9.5 X-Brightmail-Tracker: AAAAAA== Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2021 Lines: 60 Currently, there is no method to quit at specified time later. We are used to using 'sleep N' as command argument if we need it, but explicitly supporting this feature maybe makes sense. Cc: Namhyung Kim Signed-off-by: Joonsoo Kim diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index cdf58ec..19c65b5 100644 --- a/tools/perf/builtin-record.c +++ b/tools/perf/builtin-record.c @@ -29,6 +29,7 @@ #include #include +static unsigned int duration; #ifndef HAVE_ON_EXIT #ifndef ATEXIT_MAX #define ATEXIT_MAX 32 @@ -194,7 +195,7 @@ static void perf_record__sig_exit(int exit_status __maybe_unused, void *arg) psignal(WTERMSIG(status), rec->progname); } - if (signr == -1 || signr == SIGUSR1) + if (signr == -1 || signr == SIGUSR1 || signr == SIGALRM) return; signal(signr, SIG_DFL); @@ -404,6 +405,7 @@ static int __cmd_record(struct perf_record *rec, int argc, const char **argv) signal(SIGCHLD, sig_handler); signal(SIGINT, sig_handler); signal(SIGUSR1, sig_handler); + signal(SIGALRM, sig_handler); if (!output_name) { if (!fstat(STDOUT_FILENO, &st) && S_ISFIFO(st.st_mode)) @@ -471,6 +473,7 @@ static int __cmd_record(struct perf_record *rec, int argc, const char **argv) goto out_delete_session; } + alarm(duration); if (forks) { err = perf_evlist__prepare_workload(evsel_list, &opts->target, argv, opts->pipe_output, @@ -955,6 +958,7 @@ const struct option record_options[] = { parse_branch_stack), OPT_BOOLEAN('W', "weight", &record.opts.sample_weight, "sample by weight (on special events only)"), + OPT_UINTEGER(0, "duration", &duration, "run during specified seconds"), OPT_END() }; -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/