Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932684AbaFPSPT (ORCPT ); Mon, 16 Jun 2014 14:15:19 -0400 Received: from g6t1524.atlanta.hp.com ([15.193.200.67]:50993 "EHLO g6t1524.atlanta.hp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932620AbaFPSPP (ORCPT ); Mon, 16 Jun 2014 14:15:15 -0400 From: Davidlohr Bueso To: acme@kernel.org, jolsa@kernel.org Cc: mitake@dcl.info.waseda.ac.jp, davidlohr@hp.com, aswin@hp.com, linux-kernel@vger.kernel.org Subject: [PATCH 2/9] perf bench: sched-messaging: Redo runtime output Date: Mon, 16 Jun 2014 11:14:20 -0700 Message-Id: <1402942467-10671-3-git-send-email-davidlohr@hp.com> X-Mailer: git-send-email 1.8.1.4 In-Reply-To: <1402942467-10671-1-git-send-email-davidlohr@hp.com> References: <1402942467-10671-1-git-send-email-davidlohr@hp.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Instead of printing sec and usec individually, simplify into a 'runtime' variable to later use accordingly. This is particularly helpful when later adding multiple runs and collecting statistics. Signed-off-by: Davidlohr Bueso --- tools/perf/bench/sched-messaging.c | 13 +++++-------- 1 file changed, 5 insertions(+), 8 deletions(-) diff --git a/tools/perf/bench/sched-messaging.c b/tools/perf/bench/sched-messaging.c index cc1190a..df0828a 100644 --- a/tools/perf/bench/sched-messaging.c +++ b/tools/perf/bench/sched-messaging.c @@ -269,9 +269,9 @@ static const char * const bench_sched_message_usage[] = { int bench_sched_messaging(int argc, const char **argv, const char *prefix __maybe_unused) { - unsigned int i, total_children; + unsigned int i, total_children, num_fds = 20; struct timeval start, stop, diff; - unsigned int num_fds = 20; + unsigned long runtime; int readyfds[2], wakefds[2]; char dummy; pthread_t *pth_tab; @@ -307,8 +307,8 @@ int bench_sched_messaging(int argc, const char **argv, reap_worker(pth_tab[i]); gettimeofday(&stop, NULL); - timersub(&stop, &start, &diff); + runtime = (diff.tv_sec * 1e3) + (diff.tv_usec/1e3); switch (bench_format) { case BENCH_FORMAT_DEFAULT: @@ -317,13 +317,10 @@ int bench_sched_messaging(int argc, const char **argv, printf("# %d groups == %d %s run\n\n", num_groups, num_groups * 2 * num_fds, thread_mode ? "threads" : "processes"); - printf(" %14s: %lu.%03lu [sec]\n", "Total time", - diff.tv_sec, - (unsigned long) (diff.tv_usec/1000)); + printf(" %14s: %.3f [sec]\n", "Total time", runtime/1e3); break; case BENCH_FORMAT_SIMPLE: - printf("%lu.%03lu\n", diff.tv_sec, - (unsigned long) (diff.tv_usec/1000)); + printf("%.3f\n", runtime/1e3); break; default: /* reaching here is something disaster */ -- 1.8.1.4 -- 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/