Commit 40491eaa authored May 08, 2012 by David Ahern Committed by Arnaldo Carvalho de Melo May 09, 2012

perf top: Update event name when falling back to cpu-clock



The 'perf top' command falls back to cpu-clock if the H/W cycles event
is not supported, but the event name is not updated leading to a
misleading header:

PerfTop: 8 irqs/sec  kernel:75.0%  exact:  0.0% [1000Hz cycles],  ...

Update the event name when the event type is changed so that the
header displays correctly:

PerfTop: 794 irqs/sec  kernel:100.0%  exact:  0.0% [1000Hz cpu-clock], ...

Signed-off-by: David Ahern <dsahern@gmail.com>
Link: http://lkml.kernel.org/r/1336495789-58420-1-git-send-email-dsahern@gmail.com


Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

parent 979987a5

tools/perf/builtin-top.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -948,6 +948,10 @@ static void perf_top__start_counters(struct perf_top *top)

		attr->type = PERF_TYPE_SOFTWARE;
		attr->config = PERF_COUNT_SW_CPU_CLOCK;
		if (counter->name) {
		free(counter->name);
		counter->name = strdup(event_name(counter));
		}
		goto try_again;
		}