def test_get_runtime(self):
r = trappy.Run()
# 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 calculate_end_times(cls):
end_times = {}
for task in cls.params.keys():
sched_assert = SchedAssert(cls.trace, cls.env.topology,
execname=task)
end_times[task] = sched_assert.getEndTime()
return end_times
def calculate_end_times(cls):
end_times = {}
for task in cls.params.keys():
sched_assert = SchedAssert(cls.trace,
cls.env.topology,
execname=task)
end_times[task] = sched_assert.getEndTime()
return end_times
def get_end_times(self, experiment):
"""
Get the time at which each task in the workload finished
Returned as a dict; {"task_name": finish_time, ...}
"""
end_times = {}
ftrace = self.get_trace(experiment).ftrace
for task in experiment.wload.tasks.keys():
sched_assert = SchedAssert(ftrace, self.te.topology, execname=task)
end_times[task] = sched_assert.getEndTime()
return end_times
def get_end_times(self, experiment):
"""
Get the time at which each task in the workload finished
Returned as a dict; {"task_name": finish_time, ...}
"""
end_times = {}
ftrace = self.get_trace(experiment).ftrace
for task in experiment.wload.tasks.keys():
sched_assert = SchedAssert(ftrace, self.te.topology, execname=task)
end_times[task] = sched_assert.getEndTime()
return end_times
def test_all_tasks_finish_on_a_big_cpu(self):
"""Offload Migration and Idle Pull: All tasks finish on a big cpu
Note: this test may fail in big.LITTLE systems where the
little cpus' performance is comparable to the bigs' and they
can take almost the same time as a big cpu to complete a
task.
"""
for task in self.params.keys():
sa = SchedAssert(self.trace, self.env.topology, execname=task)
msg = "Task {} did not finish on a big cpu".format(task)
self.assertIn(sa.getLastCpu(), self.env.target.bl.bigs, msg=msg)
def test_all_tasks_finish_on_a_big_cpu(self):
"""Offload Migration and Idle Pull: All tasks finish on a big cpu
Note: this test may fail in big.LITTLE systems where the
little cpus' performance is comparable to the bigs' and they
can take almost the same time as a big cpu to complete a
task.
"""
for task in self.params.keys():
sa = SchedAssert(self.trace, self.env.topology, execname=task)
msg = "Task {} did not finish on a big cpu".format(task)
self.assertIn(sa.getLastCpu(), self.env.target.bl.bigs, msg=msg)
def get_sched_assert(self, experiment, task):
"""
Return a SchedAssert over the task provided
"""
return SchedAssert(self.get_trace(experiment).ftrace,
self.te.topology,
execname=task)
def get_task_duty_cycle_pct(cls, trace, task_name, cpu):
window = cls.get_task_window(trace, task_name, cpu)
top = Topology()
top.add_to_level('cpu', [[cpu]])
return SchedAssert(trace._ftrace, top,
execname=task_name).getDutyCycle(window)
def test_all_tasks_run_on_a_big_cpu(self):
"""Offload Migration and Idle Pull: All tasks run on a big cpu at some point
Note: this test may fail in big.LITTLE platforms in which the
little cpus are almost as performant as the big ones.
"""
for task in self.params.keys():
sa = SchedAssert(self.trace, self.env.topology, execname=task)
window = (0, self.end_times[task])
big_residency = sa.getResidency("cluster", self.env.target.bl.bigs,
window=window, percent=True)
log_result(big_residency, self.log_fh)
msg = "Task {} didn't run on a big cpu.".format(task)
self.assertGreater(big_residency, 0, msg=msg)
def _populate_asserts(self):
"""Populate SchedAsserts for the PIDs"""
asserts = {}
for pid in self._pids:
asserts[pid] = SchedAssert(self._ftrace, self._topology, pid=pid)
return asserts
def test_all_tasks_run_on_a_big_cpu(self):
"""Offload Migration and Idle Pull: All tasks run on a big cpu at some point
Note: this test may fail in big.LITTLE platforms in which the
little cpus are almost as performant as the big ones.
"""
for task in self.params.keys():
sa = SchedAssert(self.trace, self.env.topology, execname=task)
window = (0, self.end_times[task])
big_residency = sa.getResidency("cluster",
self.env.target.bl.bigs,
window=window,
percent=True)
log_result(big_residency, self.log_fh)
msg = "Task {} didn't run on a big cpu.".format(task)
self.assertGreater(big_residency, 0, msg=msg)
def test_get_runtime(self):
r = trappy.Run()
# 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)
def get_offset(cls, task_name):
return SchedAssert(cls.trace_file,
cls.env.topology,
execname=task_name).getStartTime()
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)
