Added frequency stats and c-state residency to CrOS power monitor.

tools/telemetry/telemetry/core/platform/power_monitor/sysfs_power_monitor_unittest.py

Index: tools/telemetry/telemetry/core/platform/power_monitor/sysfs_power_monitor_unittest.py
diff --git a/tools/telemetry/telemetry/core/platform/power_monitor/sysfs_power_monitor_unittest.py b/tools/telemetry/telemetry/core/platform/power_monitor/sysfs_power_monitor_unittest.py
new file mode 100644
index 0000000000000000000000000000000000000000..ed59e855f3e872ad1b2a1ff6f0fbfd5b45d26b54
--- /dev/null
+++ b/tools/telemetry/telemetry/core/platform/power_monitor/sysfs_power_monitor_unittest.py
@@ -0,0 +1,177 @@
+# Copyright 2014 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 unittest
+
+from telemetry.core.platform.power_monitor import sysfs_power_monitor
+
+
+class SysfsPowerMonitorMonitorTest(unittest.TestCase):
+  initial_freq = {
+    'cpu0': '1700000 6227\n1600000 0\n1500000 0\n1400000 28\n1300000 22\n'
+            '1200000 14\n1100000 19\n1000000 22\n900000 14\n800000 20\n'
+            '700000 15\n600000 23\n500000 23\n400000 9\n300000 28\n200000 179',
+    'cpu1': '1700000 11491\n1600000 0\n1500000 0\n1400000 248\n1300000 1166\n'
+            '1200000 2082\n1100000 2943\n1000000 6560\n900000 12517\n'
+            '800000 8690\n700000 5105\n600000 3800\n500000 5131\n400000 5479\n'
+            '300000 7571\n200000 133618'
+  }
+  final_freq = {
+    'cpu0': '1700000 7159\n1600000 0\n1500000 0\n1400000 68\n1300000 134\n'
+            '1200000 194\n1100000 296\n1000000 716\n900000 1301\n800000 851\n'
+            '700000 554\n600000 343\n500000 612\n400000 691\n300000 855\n'
+            '200000 15525',
+    'cpu1': '1700000 12048\n1600000 0\n1500000 0\n1400000 280\n1300000 1267\n'
+            '1200000 2272\n1100000 3163\n1000000 7039\n900000 13800\n'
+            '800000 9599\n700000 5655\n600000 4144\n500000 5655\n400000 6005\n'
+            '300000 8288\n200000 149724'
+  }
+  expected_initial_freq = {
+    'cpu0': {
+      1700000000: 6227,
+      1600000000: 0,
+      1500000000: 0,
+      1400000000: 28,
+      1300000000: 22,
+      1200000000: 14,
+      1100000000: 19,
+      1000000000: 22,
+      900000000: 14,
+      800000000: 20,
+      700000000: 15,
+      600000000: 23,
+      500000000: 23,
+      400000000: 9,
+      300000000: 28,
+      200000000: 179
+    },
+    'cpu1': {
+      1700000000: 11491,
+      1600000000: 0,
+      1500000000: 0,
+      1400000000: 248,
+      1300000000: 1166,
+      1200000000: 2082,
+      1100000000: 2943,
+      1000000000: 6560,
+      900000000: 12517,
+      800000000: 8690,
+      700000000: 5105,
+      600000000: 3800,
+      500000000: 5131,
+      400000000: 5479,
+      300000000: 7571,
+      200000000: 133618
+    }
+  }
+  expected_final_freq = {
+    'cpu0': {
+      1700000000: 7159,
+      1600000000: 0,
+      1500000000: 0,
+      1400000000: 68,
+      1300000000: 134,
+      1200000000: 194,
+      1100000000: 296,
+      1000000000: 716,
+      900000000: 1301,
+      800000000: 851,
+      700000000: 554,
+      600000000: 343,
+      500000000: 612,
+      400000000: 691,
+      300000000: 855,
+      200000000: 15525
+    },
+    'cpu1': {
+      1700000000: 12048,
+      1600000000: 0,
+      1500000000: 0,
+      1400000000: 280,
+      1300000000: 1267,
+      1200000000: 2272,
+      1100000000: 3163,
+      1000000000: 7039,
+      900000000: 13800,
+      800000000: 9599,
+      700000000: 5655,
+      600000000: 4144,
+      500000000: 5655,
+      400000000: 6005,
+      300000000: 8288,
+      200000000: 149724
+    }
+  }
+  expected_freq_percents = {
+    'whole_package': {
+      1700000000: 3.29254111574526,
+      1600000000: 0.0,
+      1500000000: 0.0,
+      1400000000: 0.15926805099535601,
+      1300000000: 0.47124116307273645,
+      1200000000: 0.818756100807525,
+      1100000000: 1.099381692400982,
+      1000000000: 2.5942528544384302,
+      900000000: 5.68661122326737,
+      800000000: 3.850545467654628,
+      700000000: 2.409691872245393,
+      600000000: 1.4693702487650486,
+      500000000: 2.4623575553879373,
+      400000000: 2.672038150383057,
+      300000000: 3.415770495015825,
+      200000000: 69.59817400982045
+    },
+    'cpu0': {
+      1700000000: 4.113700564971752,
+      1600000000: 0.0,
+      1500000000: 0.0,
+      1400000000: 0.1765536723163842,
+      1300000000: 0.4943502824858757,
+      1200000000: 0.7944915254237288,
+      1100000000: 1.2226341807909604,
+      1000000000: 3.0632062146892656,
+      900000000: 5.680614406779661,
+      800000000: 3.6679025423728815,
+      700000000: 2.379060734463277,
+      600000000: 1.4124293785310735,
+      500000000: 2.599752824858757,
+      400000000: 3.0102401129943503,
+      300000000: 3.650247175141243,
+      200000000: 67.73481638418079
+    },
+    'cpu1': {
+      1700000000: 2.4713816665187682,
+      1600000000: 0.0,
+      1500000000: 0.0,
+      1400000000: 0.1419824296743278,
+      1300000000: 0.44813204365959713,
+      1200000000: 0.8430206761913214,
+      1100000000: 0.9761292040110037,
+      1000000000: 2.1252994941875945,
+      900000000: 5.69260803975508,
+      800000000: 4.033188392936374,
+      700000000: 2.4403230100275093,
+      600000000: 1.526311118999024,
+      500000000: 2.3249622859171177,
+      400000000: 2.3338361877717633,
+      300000000: 3.1812938148904073,
+      200000000: 71.46153163546012
+    }
+  }
+  def testParseCpuFreq(self):
+    initial = sysfs_power_monitor.SysfsPowerMonitor.ParseFreqSample(
+        self.initial_freq)
+    final = sysfs_power_monitor.SysfsPowerMonitor.ParseFreqSample(
+        self.final_freq)
+    self.assertDictEqual(initial, self.expected_initial_freq)
+    self.assertDictEqual(final, self.expected_final_freq)
+
+  def testComputeCpuStats(self):
+    results = sysfs_power_monitor.SysfsPowerMonitor.ComputeCpuStats(
+        self.expected_initial_freq, self.expected_final_freq)
+    for cpu in results:
+      for freq in results[cpu]:
+        self.assertAlmostEqual(results[cpu][freq],
+                               self.expected_freq_percents[cpu][freq])
+