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-rw-r--r--tools/perf/builtin-top.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index 4f81eeb99875..8f80df896038 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -235,7 +235,6 @@ static struct hist_entry *perf_evsel__add_hist_entry(struct perf_evsel *evsel,
if (he == NULL)
return NULL;
- evsel->hists.stats.total_period += sample->period;
hists__inc_nr_events(&evsel->hists, PERF_RECORD_SAMPLE);
return he;
}
@@ -889,6 +888,10 @@ try_again:
ui__warning("The %s event is not supported.\n",
event_name(counter));
goto out_err;
+ } else if (err == EMFILE) {
+ ui__warning("Too many events are opened.\n"
+ "Try again after reducing the number of events\n");
+ goto out_err;
}
ui__warning("The sys_perf_event_open() syscall "