diff options
Diffstat (limited to 'tools/perf/scripts/perl/rw-by-file.pl')
| -rw-r--r-- | tools/perf/scripts/perl/rw-by-file.pl | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/tools/perf/scripts/perl/rw-by-file.pl b/tools/perf/scripts/perl/rw-by-file.pl index 61f91561d84..2a39097687b 100644 --- a/tools/perf/scripts/perl/rw-by-file.pl +++ b/tools/perf/scripts/perl/rw-by-file.pl @@ -18,8 +18,9 @@ use lib "./Perf-Trace-Util/lib"; use Perf::Trace::Core; use Perf::Trace::Util; -# change this to the comm of the program you're interested in -my $for_comm = "perf"; +my $usage = "perf trace -s rw-by-file.pl <comm>\n"; + +my $for_comm = shift or die $usage; my %reads; my %writes; |