Get filename right

tools/run_tests/run_microbenchmark.py

@@ -178,13 +178,15 @@ def run_summary(bm_name, cfg, base_json_name):
 
 def collect_summary(bm_name, args):
   heading('Summary: %s [no counters]' % bm_name)
-  text(run_summary(bm_name, 'opt', 'out'))
+  text(run_summary(bm_name, 'opt', bm_name))
   heading('Summary: %s [with counters]' % bm_name)
-  text(run_summary(bm_name, 'counters', 'out'))
+  text(run_summary(bm_name, 'counters', bm_name))
   if args.bigquery_upload:
-    with open('out.csv', 'w') as f:
-      f.write(subprocess.check_output(['tools/profiling/microbenchmarks/bm2bq.py', 'out.counters.json', 'out.opt.json']))
-    subprocess.check_call(['bq', 'load', 'microbenchmarks.microbenchmarks', 'out.csv'])
+    with open('%s.csv' % bm_name, 'w') as f:
+      f.write(subprocess.check_output(['tools/profiling/microbenchmarks/bm2bq.py',
+                                       '%s.counters.json' % bm_name,
+                                       '%s.opt.json' % bm_name]))
+    subprocess.check_call(['bq', 'load', 'microbenchmarks.microbenchmarks', '%s.csv' % bm_name])
 
 collectors = {
   'latency': collect_latency,