Messages in this thread Patch in this message | | | From | Arnaldo Carvalho de Melo <> | Subject | [PATCH 13/16] perf top: Update event name when falling back to cpu-clock | Date | Thu, 10 May 2012 14:17:42 -0300 |
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From: David Ahern <dsahern@gmail.com>
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> --- tools/perf/builtin-top.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c index c53cdab..4eb6171 100644 --- a/tools/perf/builtin-top.c +++ b/tools/perf/builtin-top.c @@ -948,6 +948,10 @@ try_again: 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; } -- 1.7.9.2.358.g22243
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