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# Copyright 2015-2017 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.
#
import os
import sys
import unittest
import utils_tests
import trappy
from trappy.base import trace_parser_explode_array
sys.path.append(os.path.join(utils_tests.TESTS_DIRECTORY, "..", "trappy"))
class TestBaseMethods(unittest.TestCase):
"""Test simple methods that don't need to set up a directory"""
def test_trace_parser_explode_array(self):
"""TestBaseMethods: Basic test of trace_parser_explode_array()"""
line = "cpus=0000000f freq=1400000 raw_cpu_power=189 load={3 2 12 2} power=14"
expected = "cpus=0000000f freq=1400000 raw_cpu_power=189 load0=3 load1=2 load2=12 load3=2 power=14"
array_lengths = {"load": 4}
result = trace_parser_explode_array(line, array_lengths)
self.assertEquals(result, expected)
def test_trace_parser_explode_array_nop(self):
"""TestBaseMethods: trace_parser_explode_array() returns the same string if there's no array in it"""
line = "cpus=0000000f freq=1400000 raw_cpu_power=189 load0=3 load1=2 load2=12 load3=2 power=14"
array_lengths = {"load": 0}
result = trace_parser_explode_array(line, array_lengths)
self.assertEquals(result, line)
def test_trace_parser_explode_array_2(self):
"""TestBaseMethods: trace_parser_explode_array() works if there's two arrays in the string"""
line = "cpus=0000000f freq=1400000 load={3 2 12 2} power=14 req_power={10 7 2 34}"
expected = "cpus=0000000f freq=1400000 load0=3 load1=2 load2=12 load3=2 power=14 req_power0=10 req_power1=7 req_power2=2 req_power3=34"
array_lengths = {'load': 4, 'req_power': 4}
result = trace_parser_explode_array(line, array_lengths)
self.assertEquals(result, expected)
def test_trace_parser_explode_array_diff_lengths(self):
"""TestBaseMethods: trace_parser_explode_array() expands arrays that are shorter than the expected length
trace_parser_explode_array() has to be able to deal with an array of
size 2 if we tell it in other parts of the trace it is four.
"""
line = "cpus=0000000f freq=1400000 load={3 2} power=14"
expected = "cpus=0000000f freq=1400000 load0=3 load1=2 load2=0 load3=0 power=14"
array_lengths = {'load': 4}
result = trace_parser_explode_array(line, array_lengths)
self.assertEquals(result, expected)
class TestBase(utils_tests.SetupDirectory):
"""Incomplete tests for the Base class"""
def __init__(self, *args, **kwargs):
super(TestBase, self).__init__(
[("../doc/trace.txt", "trace.txt"),
("trace_equals.txt", "trace_equals.txt")],
*args,
**kwargs)
def test_parse_empty_array(self):
"""TestBase: Trace with empty array creates a valid DataFrame"""
in_data = """ kworker/4:1-397 [004] 720.741315: thermal_power_cpu_get: cpus=000000f0 freq=1900000 raw_cpu_power=1259 load={} power=61
kworker/4:1-397 [004] 720.741349: thermal_power_cpu_get: cpus=0000000f freq=1400000 raw_cpu_power=189 load={} power=14"""
expected_columns = set(["__comm", "__pid", "__tgid", "__cpu", "cpus", "freq",
"raw_cpu_power", "power"])
with open("trace.txt", "w") as fout:
fout.write(in_data)
trace = trappy.FTrace()
dfr = trace.cpu_in_power.data_frame
self.assertEquals(set(dfr.columns), expected_columns)
self.assertEquals(dfr["power"].iloc[0], 61)
def test_parse_special_fields(self):
"""TestBase: Task name, PID, CPU and timestamp are properly paresed """
events = {
1001.456789 : { 'task': 'rcu_preempt', 'pid': 1123, 'cpu': 001 },
1002.456789 : { 'task': 'rs:main', 'pid': 2123, 'cpu': 002 },
1003.456789 : { 'task': 'AsyncTask #1', 'pid': 3123, 'cpu': 003 },
1004.456789 : { 'task': 'kworker/1:1H', 'pid': 4123, 'cpu': 004 },
1005.456789 : { 'task': 'jbd2/sda2-8', 'pid': 5123, 'cpu': 005 },
1006.456789 : { 'task': 'IntentService[', 'pid': 6123, 'cpu': 005 },
1006.456789 : { 'task': r'/system/bin/.s$_?.u- \a]}c\./ef[.12]*[[l]in]ger',
'pid': 1234, 'cpu': 666 },
}
in_data = """"""
for timestamp in sorted(events):
in_data+="{0:>16s}-{1:d} [{2:04d}] {3}: event0: tag=value\n".\
format(
events[timestamp]['task'],
events[timestamp]['pid'],
events[timestamp]['cpu'],
timestamp
)
expected_columns = set(["__comm", "__pid", "__tgid", "__cpu", "tag"])
with open("trace.txt", "w") as fout:
fout.write(in_data)
ftrace_parser = trappy.register_dynamic_ftrace("Event0", "event0", scope="sched")
trace = trappy.FTrace(normalize_time=False)
dfr = trace.event0.data_frame
self.assertEquals(set(dfr.columns), expected_columns)
for timestamp, event in events.iteritems():
self.assertEquals(dfr["__comm"].loc[timestamp], event['task'])
self.assertEquals(dfr["__pid"].loc[timestamp], event['pid'])
self.assertEquals(dfr["__cpu"].loc[timestamp], event['cpu'])
trappy.unregister_dynamic_ftrace(ftrace_parser)
def test_parse_values_concatenation(self):
"""TestBase: Trace with space separated values created a valid DataFrame"""
in_data = """ rcu_preempt-7 [000] 73.604532: my_sched_stat_runtime: comm=Space separated taskname pid=7 runtime=262875 [ns] vruntime=17096359856 [ns]"""
expected_columns = set(["__comm", "__pid", "__tgid", "__cpu", "comm", "pid", "runtime", "vruntime"])
with open("trace.txt", "w") as fout:
fout.write(in_data)
ftrace_parser = trappy.register_dynamic_ftrace("sched_stat_runtime",
"my_sched_stat_runtime", scope="sched")
trace = trappy.FTrace()
dfr = trace.sched_stat_runtime.data_frame
self.assertEquals(set(dfr.columns), expected_columns)
self.assertEquals(dfr["comm"].iloc[0], "Space separated taskname")
self.assertEquals(dfr["pid"].iloc[0], 7)
self.assertEquals(dfr["runtime"].iloc[0], 262875)
self.assertEquals(dfr["vruntime"].iloc[0], 17096359856)
trappy.unregister_dynamic_ftrace(ftrace_parser)
def test_get_dataframe(self):
"""TestBase: Thermal.data_frame["thermal_zone"] exists and
it contains a known value"""
dfr = trappy.FTrace().thermal.data_frame
self.assertTrue("thermal_zone" in dfr.columns)
self.assertEquals(dfr["temp"].iloc[0], 68786)
def test_write_csv(self):
"""TestBase: Base::write_csv() creates a valid csv"""
from csv import DictReader
fname = "thermal.csv"
trappy.FTrace().thermal.write_csv(fname)
with open(fname) as fin:
csv_reader = DictReader(fin)
self.assertTrue("Time" in csv_reader.fieldnames)
self.assertTrue("temp" in csv_reader.fieldnames)
first_data = csv_reader.next()
self.assertEquals(first_data["Time"], "0.0")
self.assertEquals(first_data["temp"], "68786")
def test_normalize_time(self):
"""TestBase: Base::normalize_time() normalizes the time of the trace"""
thrm = trappy.FTrace().thermal
last_prev_time = thrm.data_frame.index[-1]
basetime = thrm.data_frame.index[0]
thrm.normalize_time(basetime)
last_time = thrm.data_frame.index[-1]
expected_last_time = last_prev_time - basetime
self.assertEquals(round(thrm.data_frame.index[0], 7), 0)
self.assertEquals(round(last_time - expected_last_time, 7), 0)
def test_equals_in_field_value(self):
"""TestBase: Can parse events with fields with values containing '='"""
trace = trappy.FTrace("trace_equals.txt", events=['equals_event'])
df = trace.equals_event.data_frame
self.assertSetEqual(set(df.columns),
set(["__comm", "__pid", "__tgid", "__cpu", "my_field"]))
self.assertListEqual(df["my_field"].tolist(),
["foo", "foo=bar", "foo=bar=baz", 1,
"1=2", "1=foo", "1foo=2"])
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