From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754945AbdCGItY (ORCPT ); Tue, 7 Mar 2017 03:49:24 -0500 Received: from terminus.zytor.com ([65.50.211.136]:34642 "EHLO mail.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754898AbdCGItQ (ORCPT ); Tue, 7 Mar 2017 03:49:16 -0500 Date: Tue, 7 Mar 2017 00:31:41 -0800 From: tip-bot for Jiri Olsa Message-ID: Cc: linux-kernel@vger.kernel.org, mingo@kernel.org, jhladky@redhat.com, a.p.zijlstra@chello.nl, hpa@zytor.com, jolsa@kernel.org, acme@redhat.com, dsahern@gmail.com, tglx@linutronix.de, namhyung@kernel.org Reply-To: namhyung@kernel.org, dsahern@gmail.com, tglx@linutronix.de, acme@redhat.com, jolsa@kernel.org, jhladky@redhat.com, a.p.zijlstra@chello.nl, hpa@zytor.com, linux-kernel@vger.kernel.org, mingo@kernel.org In-Reply-To: <1488732011-27384-1-git-send-email-jolsa@kernel.org> References: <1488732011-27384-1-git-send-email-jolsa@kernel.org> To: linux-tip-commits@vger.kernel.org Subject: [tip:perf/core] perf bench numa: Add more comment for -c option Git-Commit-ID: 001916b94a04809a94abb07daba6f9ace01906ba X-Mailer: tip-git-log-daemon Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit-ID: 001916b94a04809a94abb07daba6f9ace01906ba Gitweb: http://git.kernel.org/tip/001916b94a04809a94abb07daba6f9ace01906ba Author: Jiri Olsa AuthorDate: Sun, 5 Mar 2017 17:40:11 +0100 Committer: Arnaldo Carvalho de Melo CommitDate: Mon, 6 Mar 2017 12:39:30 -0300 perf bench numa: Add more comment for -c option Adding more commentary for -c/--show_convergence option, to explain how the convergence is defined. Before: -c, --show_convergence show convergence details Now: -c, --show_convergence convergence is reached when each process \ (all its threads) is running on a single NUMA node. Suggested--by: Jiri Hladky Signed-off-by: Jiri Olsa Cc: David Ahern Cc: Jiri Hladky Cc: Namhyung Kim Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1488732011-27384-1-git-send-email-jolsa@kernel.org [ Rephrased a bit based on a IRC conversation with Jiri ] Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/bench/numa.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/tools/perf/bench/numa.c b/tools/perf/bench/numa.c index 3083fc3..6bd0581 100644 --- a/tools/perf/bench/numa.c +++ b/tools/perf/bench/numa.c @@ -187,7 +187,8 @@ static const struct option options[] = { OPT_INCR ('d', "show_details" , &p0.show_details, "Show details"), OPT_INCR ('a', "all" , &p0.run_all, "Run all tests in the suite"), OPT_INTEGER('H', "thp" , &p0.thp, "MADV_NOHUGEPAGE < 0 < MADV_HUGEPAGE"), - OPT_BOOLEAN('c', "show_convergence", &p0.show_convergence, "show convergence details"), + OPT_BOOLEAN('c', "show_convergence", &p0.show_convergence, "show convergence details, " + "convergence is reached when each process (all its threads) is running on a single NUMA node."), OPT_BOOLEAN('m', "measure_convergence", &p0.measure_convergence, "measure convergence latency"), OPT_BOOLEAN('q', "quiet" , &p0.show_quiet, "quiet mode"), OPT_BOOLEAN('S', "serialize-startup", &p0.serialize_startup,"serialize thread startup"),