commit 3f7e42864bdc5242270a070a244f10cdea7c2818
author Christoffer Quist Adamsen <christofferqa@google.com> Thu Apr 21 13:12:31 2022 +0200
committer Christoffer Adamsen <christofferqa@google.com> Thu Apr 21 11:14:07 2022 +0000
tree 1bb603c9a448a8db18c61ef2a519f55d03d1fba3
parent c6b19de1629e3343fab5fbe445df9669209366e2

Support for measuring startup with profile

Change-Id: I03afd9efd60c466ecd5db5a52d82bfe19f4edb7f

tools/startup/perfetto_utils.py

diff --git a/tools/startup/perfetto_utils.py b/tools/startup/perfetto_utils.py
index d85f53e..d2f53b4 100644
--- a/tools/startup/perfetto_utils.py
+++ b/tools/startup/perfetto_utils.py
@@ -31,7 +31,7 @@
     assert os.path.exists(record_android_trace_path)
   return record_android_trace_path
 
-def record_android_trace(out_dir, tmp_dir):
+def record_android_trace(out_dir, tmp_dir, device_id=None):
   record_android_trace_path = ensure_record_android_trace(tmp_dir)
   config_path = os.path.join(os.path.dirname(__file__), 'config.pbtx')
   perfetto_trace_path = os.path.join(out_dir, 'trace.perfetto-trace')
@@ -43,6 +43,8 @@
       '--out',
       perfetto_trace_path,
       '--no-open']
+  if device_id is not None:
+    cmd.extend(['--serial', device_id])
   perfetto_process = subprocess.Popen(
       cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
   lines = []