perf report: Add option to show total period

Just like --show-nr-samples, to help in diagnosing problems in the
tools.

Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-1lr7ejdjfvy2uwy2wkmatcpq@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index b125742e5cfd..c1cc7ab6f849 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -486,6 +486,8 @@ static const struct option options[] = {
         OPT_STRING('c', "cpu", &cpu_list, "cpu", "list of cpus to profile"),
         OPT_STRING('M', "disassembler-style", &disassembler_style, "disassembler style",
                    "Specify disassembler style (e.g. -M intel for intel syntax)"),
+        OPT_BOOLEAN(0, "show-total-period", &symbol_conf.show_total_period,
+                    "Show a column with the sum of periods"),
         OPT_END()
 };