diff options
| -rw-r--r-- | tools/perf/builtin-top.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c index d89dec90103..8f80df89603 100644 --- a/tools/perf/builtin-top.c +++ b/tools/perf/builtin-top.c @@ -888,6 +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 " |