Commit-ID: 3160565f0e005d2ec736ae25cf0a79988c0cbe71
Gitweb: http://git.kernel.org/tip/3160565f0e005d2ec736ae25cf0a79988c0cbe71
Author: David Ahern <dsahern@xxxxxxxxx>
AuthorDate: Wed, 4 Dec 2013 19:41:41 -0700
Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Thu, 5 Dec 2013 10:09:58 -0300
perf trace: Fix summary percentage when processing files
Getting a divide by 0 when events are processed from a file:
perf trace -i perf.data -s
...
dnsmasq (1684), 10 events, inf%, 0.000 msec
The problem is that the event count is not incremented as events are
processed. With this patch:
perf trace -i perf.data -s
...
dnsmasq (1684), 10 events, 8.9%, 0.000 msec
Signed-off-by: David Ahern <dsahern@xxxxxxxxx>
Link: http://lkml.kernel.org/r/1386211302-31303-4-git-send-email-dsahern@xxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/perf/builtin-trace.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index a7aa771..56bbca5 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -1770,8 +1770,10 @@ static int trace__process_sample(struct perf_tool *tool,
if (!trace->full_time && trace->base_time == 0)
trace->base_time = sample->time;
- if (handler)
+ if (handler) {
+ ++trace->nr_events;
handler(trace, evsel, sample);
+ }
return err;
}
--
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