From: Jiri Olsa <[email protected]>
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 <[email protected]>
Signed-off-by: Jiri Olsa <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Jiri Hladky <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link:
http://lkml.kernel.org/r/[email protected]
[ Rephrased a bit based on a IRC conversation with Jiri ]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
---
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 3083fc36282b..6bd0581de298 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"),
--
2.9.3
