Telemetry: Quiescent power benchmarks for Mac

tools/perf/measurements/energy.py

Index: tools/perf/measurements/energy.py
diff --git a/tools/perf/measurements/energy.py b/tools/perf/measurements/energy.py
new file mode 100644
index 0000000000000000000000000000000000000000..ed3d4fbad8e8b096e5bbcbbfed4e1f11de761030
--- /dev/null
+++ b/tools/perf/measurements/energy.py
@@ -0,0 +1,25 @@
+# Copyright 2015 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import time
+
+from metrics import cpu
+from metrics import power
+from telemetry.page import page_test
+
+
+class Energy(page_test.PageTest):

[sullivan, 2015/04/21 15:56:53]

It's pretty confusing to have both "Power" and "Energy" measurements/benchmarks
with no comments in either file about the reasoning for having both and the
naming. Is it possible to move these new measurements and benchmarks into the
power.py files so they're all in the same place?

[Andre, 2015/04/22 00:46:54]

Done, merged into power.py.

+  """Measures energy usage and idle wakeups after the page is loaded."""
+
+  # Amount of time to measure, in seconds.
+  SAMPLE_TIME = 30
+
+  def ValidateAndMeasurePage(self, page, tab, results):
+    metric = power.PowerMetric(tab.browser.platform)
+    metric.Start(page, tab)
+
+    time.sleep(Energy.SAMPLE_TIME)
+
+    metric.Stop(page, tab)
+    metric.AddResults(tab, results)