Android: re-add perf test summary.

This was lost when we unified the perf test runner
in crrev.com/217665.

BUG=343900

Review URL: https://codereview.chromium.org/166433004

git-svn-id: http://src.chromium.org/svn/trunk/src/build@251650 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

android/pylib/perf/test_runner.py

@@ -81,6 +81,24 @@ def PrintTestOutput(test_name):
   return persisted_result['exit_code']
 
 
+def PrintSummary(test_names):
+  logging.info('*' * 80)
+  logging.info('Sharding summary')
+  total_time = 0
+  for test_name in test_names:
+    file_name = os.path.join(constants.PERF_OUTPUT_DIR, test_name)
+    if not os.path.exists(file_name):
+      logging.info('%s : No status file found', test_name)
+      continue
+    with file(file_name, 'r') as f:
+      result = pickle.loads(f.read())
+    logging.info('%s : exit_code=%d in %d secs at %s',
+                 result['name'], result['exit_code'], result['total_time'],
+                 result['device'])
+    total_time += result['total_time']
+  logging.info('Total steps time: %d secs', total_time)
+
+
 class _HeartBeatLogger(object):
   # How often to print the heartbeat on flush().
   _PRINT_INTERVAL = 30.0

android/test_runner.py

@@ -649,6 +649,8 @@ def _RunPerfTests(options, args, error_func, devices):
   if perf_options.single_step:
     return perf_test_runner.PrintTestOutput('single_step')
 
+  perf_test_runner.PrintSummary(tests)
+
   # Always return 0 on the sharding stage. Individual tests exit_code
   # will be returned on the print_step stage.
   return 0