[system health] Add power system health benchmarks

tools/perf/benchmarks/system_health.py

Index: tools/perf/benchmarks/system_health.py
diff --git a/tools/perf/benchmarks/system_health.py b/tools/perf/benchmarks/system_health.py
index 2d80785a99da3ac35da7d034cc2eb86f70e8efc2..d1630999abc5cd3e382000cb1aee54ed05a13aef 100644
--- a/tools/perf/benchmarks/system_health.py
+++ b/tools/perf/benchmarks/system_health.py
@@ -16,9 +16,70 @@ import page_sets
 _IGNORED_STATS_RE = re.compile(r'_(std|count|max|min|sum|pct_\d{4}(_\d+)?)$')
 
 
+class _CommonSystemHealthBenchmark(perf_benchmark.PerfBenchmark):
+  """Chrome Common System Health Benchmark.
+
+  This test suite contains system health benchmarks that can be collected
+  together due to the low overhead of the tracing agents required. If a
+  benchmark does have significant overhead, it should either:
+
+    1) Be rearchitected such that it doesn't. This is the most preferred option.
+    2) Be run in a separate test suite.

[petrcermak, 2016/08/12 14:35:00]

maybe add "(such as memory)"?

[charliea (OOO until 10-5), 2016/08/12 15:07:28]

Done.

+
+  https://goo.gl/Jek2NL.
+  """
+
+  def CreateTimelineBasedMeasurementOptions(self):
+    options = timeline_based_measurement.Options()
+    options.config.enable_battor_trace = True
+    options.config.enable_chrome_trace = True
+    options.config.chrome_trace_config.SetDefaultOverheadFilter()
+    options.SetTimelineBasedMetrics(['clockSyncLatencyMetric', 'powerMetric'])
+    return options
+
+  def CreateStorySet(self, options):
+    return page_sets.SystemHealthStorySet(platform=self.PLATFORM)
+
+  @classmethod
+  def ShouldTearDownStateAfterEachStoryRun(cls):
+    return True
+
+  @classmethod
+  def Name(cls):
+    return 'system_health.common_%s' % cls.PLATFORM
+
+
+class DesktopCommonSystemHealth(_CommonSystemHealthBenchmark):
+  """Desktop Chrome Energy System Health Benchmark."""
+  PLATFORM = 'desktop'
+
+  @classmethod
+  def ShouldDisable(cls, possible_browser):
+    # http://crbug.com/624355 (reference builds).
+    return (possible_browser.platform.GetDeviceTypeName() != 'Desktop' or
+            possible_browser.browser_type == 'reference')
+
+
+class MobileCommonSystemHealth(_CommonSystemHealthBenchmark):
+  """Mobile Chrome Energy System Health Benchmark."""
+  PLATFORM = 'mobile'
+
+  @classmethod
+  def ShouldDisable(cls, possible_browser):
+    # http://crbug.com/612144
+    if (possible_browser.browser_type == 'reference' and
+        possible_browser.platform.GetDeviceTypeName() == 'Nexus 5X'):
+      return True
+
+    return possible_browser.platform.GetDeviceTypeName() == 'Desktop'
+
+
 class _MemorySystemHealthBenchmark(perf_benchmark.PerfBenchmark):
   """Chrome Memory System Health Benchmark.
 
+  This test suite is run separately from the common one due to the high overhead
+  of memory tracing.
+
   https://goo.gl/Jek2NL.
   """