Commit 001916b9 authored Mar 05, 2017 by Jiri Olsa Committed by Arnaldo Carvalho de Melo Mar 06, 2017

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 <jhladky@redhat.com>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Hladky <jhladky@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
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 <acme@redhat.com>

parent c8c18867

tools/perf/bench/numa.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -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"),

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