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Diffstat (limited to 'tests/test_sched_assert.py')
-rw-r--r-- | tests/test_sched_assert.py | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/tests/test_sched_assert.py b/tests/test_sched_assert.py new file mode 100644 index 0000000..4f8c28b --- /dev/null +++ b/tests/test_sched_assert.py @@ -0,0 +1,116 @@ +# Copyright 2015-2016 ARM Limited +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +# + + +from bart.sched.SchedAssert import SchedAssert +from bart.sched.SchedMultiAssert import SchedMultiAssert +import trappy +from trappy.stats.Topology import Topology +import unittest + +import utils_tests + + +@unittest.skipUnless(utils_tests.trace_cmd_installed(), + "trace-cmd not installed") +class TestSchedAssert(utils_tests.SetupDirectory): + + def __init__(self, *args, **kwargs): + + self.BIG = [1,2] + self.LITTLE = [0, 3, 4, 5] + self.clusters = [self.BIG, self.LITTLE] + self.topology = Topology(clusters=self.clusters) + super(TestSchedAssert, self).__init__( + [("raw_trace.dat", "trace.dat")], + *args, + **kwargs) + + def test_get_runtime(self): + + r = trappy.FTrace() + # The ls process is process we are + # testing against with pre calculated + # values + process = "ls" + + # Complete duration + expected_time = 0.0034740000264719129 + s = SchedAssert(r, self.topology, execname=process) + self.assertAlmostEqual(s.getRuntime(), expected_time, places=9) + self.assertAlmostEqual(s.getRuntime(), expected_time, places=9) + + # Non Interrupted Window + window = (0.0034, 0.003525) + expected_time = 0.000125 + self.assertAlmostEqual(s.getRuntime(window=window), expected_time, + places=9) + + # Interrupted Window + window = (0.0030, 0.0032) + expected_time = 0.000166 + self.assertAlmostEqual(s.getRuntime(window=window), expected_time, + places=9) + + # A window with multiple interruptions + window = (0.0027, 0.0036) + expected_time = 0.000817 + self.assertAlmostEqual(s.getRuntime(window=window), expected_time, + places=9) + + def test_get_last_cpu(self): + """SchedAssert.getLastCpu() gives you the last cpu in which a task ran""" + expected_last_cpu = 5 + + sa = SchedAssert("trace.dat", self.topology, execname="ls") + self.assertEqual(sa.getLastCpu(), expected_last_cpu) + +class TestSchedMultiAssert(utils_tests.SetupDirectory): + def __init__(self, *args, **kwargs): + self.big = [1,2] + self.little = [0, 3, 4, 5] + self.clusters = [self.big, self.little] + self.all_cpus = sorted(self.big + self.little) + self.topology = Topology(clusters=self.clusters) + super(TestSchedMultiAssert, self).__init__( + [("raw_trace.dat", "trace.dat")], + *args, + **kwargs) + + def test_cpu_busy_time(self): + """SchedMultiAssert.getCPUBusyTime() work""" + + # precalculated values against these processes in the trace + pids = [4729, 4734] + first_time = .000214 + last_time = .003171 + + tr = trappy.FTrace() + sma = SchedMultiAssert(tr, self.topology, pids=pids) + + expected_busy_time = 0.0041839999754810708 + busy_time = sma.getCPUBusyTime("all", self.all_cpus, window=(first_time, last_time)) + self.assertAlmostEqual(busy_time, expected_busy_time) + + # percent calculation + expected_busy_pct = 23.582459561949445 + busy_pct= sma.getCPUBusyTime("all", self.all_cpus, percent=True, + window=(first_time, last_time)) + self.assertAlmostEqual(busy_pct, expected_busy_pct) + + # percent without a window + expected_busy_pct = 23.018818156540004 + busy_pct= sma.getCPUBusyTime("cluster", self.little, percent=True) + self.assertAlmostEqual(busy_pct, expected_busy_pct) |