Fix command line
diff --git a/tools/run_tests/run_microbenchmark.py b/tools/run_tests/run_microbenchmark.py
index 2a1b024..0d56e4c 100755
--- a/tools/run_tests/run_microbenchmark.py
+++ b/tools/run_tests/run_microbenchmark.py
@@ -134,7 +134,7 @@
'--benchmark_filter=^%s$' % line,
'--benchmark_min_time=20'])
with open('bm.perf', 'w') as f:
- f.write(subprocess.check_output(['sudo', 'perf', 'script']))
+ f.write(subprocess.check_output(['sudo', 'perf', 'script', '-i', 'perf.data']))
with open('bm.folded', 'w') as f:
f.write(subprocess.check_output([
'%s/stackcollapse-perf.pl' % flamegraph_dir, 'bm.perf']))