Steady state detection

Detection of steady state after 10+ samples of data

Change-Id: I29368b06188c6370d17b3d567fece6486d171235
JIRA: STORPERF-72 STORPERF-73
Signed-off-by: Mark Beierl <mark.beierl@dell.com>

1 files changed, 163 insertions, 7 deletions

diff --git a/tests/utilities_tests/data_handler_test.py b/tests/utilities_tests/data_handler_test.py
index 482b98e..b175c87 100644
--- a/tests/utilities_tests/data_handler_test.py
+++ b/tests/utilities_tests/data_handler_test.py
@@ -8,22 +8,25 @@
 ##############################################################################
 
 import os
+from storperf.utilities.data_handler import DataHandler
 import unittest
 
 import mock
 
-from storperf.utilities.data_handler import DataHandler
-
 
 class MockGraphiteDB(object):
 
     def __init__(self):
         self.called = False
+        self.series = []
 
     def fetch_averages(self, job_id):
         self.called = True
         return None
 
+    def fetch_series(self, job_id, timeframe):
+        return self.series
+
 
 class DataHandlerTest(unittest.TestCase):
 
@@ -40,6 +43,7 @@ class DataHandlerTest(unittest.TestCase):
         mock.job_id = "1"
         self.job_db = mock
         self.pushed = False
+        self.current_workload = None
         pass
 
     @property
@@ -50,8 +54,68 @@ class DataHandlerTest(unittest.TestCase):
         self.pushed = True
         pass
 
-    def test_not_terminated_report(self):
-        self.data_handler.data_event(self)
+    def terminate(self):
+        self._terminated = True
+
+    @mock.patch("time.time")
+    @mock.patch.dict(os.environ, {'TEST_DB_URL': 'mock'})
+    @mock.patch("storperf.db.graphite_db.GraphiteDB.fetch_series")
+    def test_lookup_prior_data(self, mock_graphite_db, mock_time):
+        self._terminated = False
+        expected = [[1480455910, 205.345],
+                    [1480455920, 201.59],
+                    [1480455930, 205.76],
+                    [1480455970, 215.655],
+                    [1480455980, 214.16],
+                    [1480455990, 213.57],
+                    [1480456030, 219.37],
+                    [1480456040, 219.28],
+                    [1480456050, 217.75]]
+        mock_graphite_db.return_value = expected
+        mock_time.return_value = expected[-1][0] + 10
+
+        self.current_workload = ("%s.%s.queue-depth.%s.block-size.%s" %
+                                 ("job_id",
+                                  "rw",
+                                  8,
+                                  8192))
+
+        actual = self.data_handler._lookup_prior_data(self, 'read', 'iops')
+        self.assertEqual(expected, actual)
+
+    def test_short_sample(self):
+        series = [[1480455910, 205.345],
+                  [1480455920, 201.59],
+                  [1480455930, 205.76],
+                  [1480455970, 215.655],
+                  [1480455980, 214.16],
+                  [1480455990, 213.57],
+                  [1480456030, 219.37],
+                  [1480456040, 219.28],
+                  [1480456050, 217.75]]
+
+        actual = self.data_handler._evaluate_prior_data(series)
+        self.assertEqual(False, actual)
+
+    def test_long_not_steady_sample(self):
+        series = [[4804559100, 205345],
+                  [4804559200, 20159],
+                  [4804559300, 20576],
+                  [4804560300, 21937],
+                  [4804560400, 21928],
+                  [4804560500, 21775]]
+        actual = self.data_handler._evaluate_prior_data(series)
+        self.assertEqual(False, actual)
+
+    def test_long_steady_sample(self):
+        series = [[4804559100, 205.345],
+                  [4804559200, 201.59],
+                  [4804559300, 205.76],
+                  [4804560300, 219.37],
+                  [4804560400, 219.28],
+                  [4804560500, 217.75]]
+        actual = self.data_handler._evaluate_prior_data(series)
+        self.assertEqual(True, actual)
 
     @mock.patch.dict(os.environ, {'TEST_DB_URL': 'mock'})
     @mock.patch("storperf.db.test_results_db.push_results_to_db")
@@ -65,12 +129,104 @@ class DataHandlerTest(unittest.TestCase):
         self.assertEqual(True, self.pushed)
 
     @mock.patch.dict(os.environ, {'TEST_DB_URL': 'mock'})
+    @mock.patch("time.time")
     @mock.patch("storperf.db.test_results_db.push_results_to_db")
-    @mock.patch("storperf.utilities.data_handler.GraphiteDB")
-    def test_non_terminated_report(self, mock_graphite_db, mock_results_db):
+    @mock.patch("storperf.db.graphite_db.GraphiteDB.fetch_series")
+    def test_non_terminated_report(self, mock_graphite_db, mock_results_db,
+                                   mock_time):
         self._terminated = False
         mock_results_db.side_effect = self.push_results_to_db
-        mock_graphite_db.side_effect = MockGraphiteDB
+        series = \
+            [[1480455910, 205.345],
+             [1480455920, 201.59],
+             [1480455930, 205.76],
+             [1480455970, 215.655],
+             [1480455980, 214.16],
+             [1480455990, 213.57],
+             [1480456030, 219.37],
+             [1480456040, 219.28],
+             [1480456050, 217.75]]
+        mock_graphite_db.return_value = series
+        mock_time.return_value = series[-1][0] + 10
+        expected_slope = 0.1185333530108134
+        expected_range = 17.78
+        expected_average = 212.49777777777774
+
+        self.current_workload = ("%s.%s.queue-depth.%s.block-size.%s" %
+                                 ("job_id",
+                                  "rw",
+                                  8,
+                                  8192))
 
         self.data_handler.data_event(self)
         self.assertEqual(False, self.pushed)
+        self.assertEqual(False, self._terminated)
+
+        self.assertEqual(expected_slope, self.metadata['report_data']
+                         ['lat.mean']
+                         ['read']
+                         ['slope'])
+        self.assertEqual(expected_range, self.metadata['report_data']
+                         ['lat.mean']
+                         ['read']
+                         ['range'])
+        self.assertEqual(expected_average, self.metadata['report_data']
+                         ['lat.mean']
+                         ['read']
+                         ['average'])
+        self.assertEqual(series, self.metadata['report_data']
+                         ['lat.mean']
+                         ['read']
+                         ['series'])
+
+    @mock.patch.dict(os.environ, {'TEST_DB_URL': 'mock'})
+    @mock.patch("time.time")
+    @mock.patch("storperf.db.test_results_db.push_results_to_db")
+    @mock.patch("storperf.db.graphite_db.GraphiteDB.fetch_series")
+    def test_report_that_causes_termination(self,
+                                            mock_graphite_db,
+                                            mock_results_db,
+                                            mock_time):
+        self._terminated = False
+        mock_results_db.side_effect = self.push_results_to_db
+        series = [[4804559100, 205.345],
+                  [4804559200, 201.59],
+                  [4804559300, 205.76],
+                  [4804560300, 219.37],
+                  [4804560400, 219.28],
+                  [4804560500, 217.75]]
+        mock_graphite_db.return_value = series
+        mock_time.return_value = 4804560500 + 10
+
+        expected_slope = 0.011830471529818998
+        expected_range = 17.78
+        expected_average = 211.51583333333335
+
+        self.current_workload = ("%s.%s.queue-depth.%s.block-size.%s" %
+                                 ("job_id",
+                                  "rw",
+                                  8,
+                                  8192))
+
+        self.data_handler.data_event(self)
+
+        self.assertEqual(expected_slope, self.metadata['report_data']
+                         ['lat.mean']
+                         ['read']
+                         ['slope'])
+        self.assertEqual(expected_range, self.metadata['report_data']
+                         ['lat.mean']
+                         ['read']
+                         ['range'])
+        self.assertEqual(expected_average, self.metadata['report_data']
+                         ['lat.mean']
+                         ['read']
+                         ['average'])
+        self.assertEqual(series, self.metadata['report_data']
+                         ['lat.mean']
+                         ['read']
+                         ['series'])
+        self.assertEqual(True, self._terminated)
+
+        self.assertEqual(False, self.pushed)
+        self.assertEqual(True, self._terminated)