def test_tracing_bootstrap(self):
workq_event_path = FT_EVENT_DIR + "workqueue/enable"
permitted_files = {workq_event_path: "0", FT_TRACE: "x"}
io_interface = make_test_io_interface(permitted_files)
systrace_cmd = SYSTRACE_HOST_CMD_DEFAULT + ["workq"]
options, categories = run_systrace.parse_options(systrace_cmd)
agent = ftrace_agent.FtraceAgent(io_interface)
self.assertEqual(['workq'], agent._avail_categories())
# confirm tracing is enabled, buffer is cleared
agent.StartAgentTracing(options, categories, 10)
self.assertEqual(permitted_files[FT_TRACE_ON], "1")
self.assertEqual(permitted_files[FT_TRACE], "")
# fill in file with dummy contents
dummy_trace = "trace_contents"
permitted_files[FT_TRACE] = dummy_trace
# confirm tracing is disabled
agent.StopAgentTracing(10)
agent.GetResults(30)
self.assertEqual(permitted_files[FT_TRACE_ON], "0")
# confirm trace is expected, and read from fs
self.assertEqual(agent.GetResults(30).raw_data, dummy_trace)
# confirm buffer size is reset to 1
self.assertEqual(permitted_files[FT_BUFFER_SIZE], "1")
def test_tracing_bootstrap(self):
workq_event_path = FT_EVENT_DIR + "workqueue/enable"
permitted_files = {
workq_event_path: "0",
FT_TRACE: "x"
}
io_interface = make_test_io_interface(permitted_files)
systrace_cmd = SYSTRACE_HOST_CMD_DEFAULT + ["workq"]
options, categories = run_systrace.parse_options(systrace_cmd)
agent = ftrace_agent.FtraceAgent(io_interface)
self.assertEqual(['workq'], agent._avail_categories())
# confirm tracing is enabled, buffer is cleared
agent.StartAgentTracing(options, categories, 10)
self.assertEqual(permitted_files[FT_TRACE_ON], "1")
self.assertEqual(permitted_files[FT_TRACE], "")
# fill in file with dummy contents
dummy_trace = "trace_contents"
permitted_files[FT_TRACE] = dummy_trace
# confirm tracing is disabled
agent.StopAgentTracing(10)
agent.GetResults(30)
self.assertEqual(permitted_files[FT_TRACE_ON], "0")
# confirm trace is expected, and read from fs
self.assertEqual(agent.GetResults(30).raw_data, dummy_trace)
# confirm buffer size is reset to 1
self.assertEqual(permitted_files[FT_BUFFER_SIZE], "1")
def test_buffer_size(self):
systrace_cmd = SYSTRACE_HOST_CMD_DEFAULT + ['-b', '16000']
options, categories = run_systrace.parse_options(systrace_cmd)
agent = ftrace_agent.FtraceAgent()
agent._options = options
agent._categories = categories
self.assertEqual(agent._get_trace_buffer_size(), 16000)
def test_buffer_size(self): systrace_cmd = SYSTRACE_HOST_CMD_DEFAULT + ['-b', '16000'] options, categories = run_systrace.parse_options(systrace_cmd) agent = ftrace_agent.FtraceAgent() agent._options = options agent._categories = categories self.assertEqual(agent._get_trace_buffer_size(), 16000)
def test_tracing_event_enable_disable(self):
# turn on irq tracing
ipi_event_path = FT_EVENT_DIR + "ipi/enable"
irq_event_path = FT_EVENT_DIR + "irq/enable"
permitted_files = {
ipi_event_path: "0",
irq_event_path: "0"
}
io_interface = make_test_io_interface(permitted_files)
systrace_cmd = SYSTRACE_HOST_CMD_DEFAULT + ["irq"]
options, categories = run_systrace.parse_options(systrace_cmd)
options.ftrace_categories = categories
agent = ftrace_agent.FtraceAgent(io_interface)
self.assertEqual(['irq'], agent._avail_categories())
# confirm all the event nodes are turned on during tracing
agent.StartAgentTracing(options)
self.assertEqual(permitted_files[irq_event_path], "1")
self.assertEqual(permitted_files[ipi_event_path], "1")
# and then turned off when completed.
agent.StopAgentTracing()
agent.GetResults()
self.assertEqual(permitted_files[irq_event_path], "0")
self.assertEqual(permitted_files[ipi_event_path], "0")
def test_preprocess_trace_data(self):
with contextlib.nested(open(ATRACE_DATA_STRIPPED, 'r'),
open(ATRACE_DATA_RAW, 'r')) as (f1, f2):
atrace_data = f1.read()
atrace_data_raw = f2.read()
options, categories = run_systrace.parse_options(SYSTRACE_CMD)
agent = atrace_agent.AtraceAgent()
agent._config = options
agent._config.atrace_categories = categories
trace_data = agent._preprocess_trace_data(atrace_data_raw)
self.assertEqual(atrace_data, trace_data)
def test_preprocess_trace_data(self):
with contextlib.nested(open(ATRACE_DATA_STRIPPED, 'r'),
open(ATRACE_DATA_RAW, 'r')) as (f1, f2):
atrace_data = f1.read()
atrace_data_raw = f2.read()
options, categories = run_systrace.parse_options(STOP_FIX_UPS)
agent = atrace_agent.AtraceAgent()
agent._config = options
agent._config.atrace_categories = categories
trace_data = agent._preprocess_trace_data(atrace_data_raw)
self.assertEqual(atrace_data, trace_data)
def test_tracing_event_enable_disable(self):
# turn on irq tracing
ipi_event_path = FT_EVENT_DIR + "ipi/enable"
irq_event_path = FT_EVENT_DIR + "irq/enable"
permitted_files = {ipi_event_path: "0", irq_event_path: "0"}
io_interface = make_test_io_interface(permitted_files)
systrace_cmd = SYSTRACE_HOST_CMD_DEFAULT + ["irq"]
options, categories = run_systrace.parse_options(systrace_cmd)
agent = ftrace_agent.FtraceAgent(io_interface)
self.assertEqual(['irq'], agent._avail_categories())
# confirm all the event nodes are turned on during tracing
agent.StartAgentTracing(options, categories, 10)
self.assertEqual(permitted_files[irq_event_path], "1")
self.assertEqual(permitted_files[ipi_event_path], "1")
# and then turned off when completed.
agent.StopAgentTracing(10)
agent.GetResults(30)
self.assertEqual(permitted_files[irq_event_path], "0")
self.assertEqual(permitted_files[ipi_event_path], "0")
def test_construct_atrace_args(self):
options, categories = run_systrace.parse_options(SYSTRACE_CMD)
options.atrace_categories = categories
tracer_args = atrace_agent._construct_atrace_args(options, categories)
self.assertEqual(' '.join(TRACE_ARGS), ' '.join(tracer_args))
def test_boot(self):
options, _ = run_systrace.parse_options(SYSTRACE_BOOT_CMD)
tracer_args = atrace_agent._construct_boot_trace_command(options)
self.assertEqual(' '.join(TRACE_BOOT_CMD), ' '.join(tracer_args))
def test_construct_atrace_args(self):
options, categories = run_systrace.parse_options(SYSTRACE_CMD)
options.atrace_categories = categories
tracer_args = atrace_agent._construct_atrace_args(options, categories)
self.assertEqual(' '.join(TRACE_ARGS), ' '.join(tracer_args))
def test_boot(self):
options, _ = run_systrace.parse_options(SYSTRACE_BOOT_CMD)
tracer_args = atrace_agent._construct_boot_trace_command(options)
self.assertEqual(' '.join(TRACE_BOOT_CMD), ' '.join(tracer_args))
def test_construct_walt_args(self):
options, _ = run_systrace.parse_options(['./run_systrace.py',
'--walt'])
self.assertTrue(walt_agent.get_config(options).is_walt_enabled)
options, _ = run_systrace.parse_options(['./run_systrace.py'])
self.assertFalse(walt_agent.get_config(options).is_walt_enabled)
