blob: 3823eb510c335cb4e4621aee3b531ec3659a0899 [file] [log] [blame]
#!/usr/bin/env python
# Copyright 2014 the V8 project authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
Performance runner for d8.
Call e.g. with tools/ --arch ia32 some_suite.json
The suite json format is expected to be:
"path": <relative path chunks to perf resources and main file>,
"name": <optional suite name, file name is default>,
"archs": [<architecture name for which this suite is run>, ...],
"binary": <name of binary to run, default "d8">,
"flags": [<flag to d8>, ...],
"test_flags": [<flag to the test file>, ...],
"run_count": <how often will this suite run (optional)>,
"run_count_XXX": <how often will this suite run for arch XXX (optional)>,
"resources": [<js file to be moved to android device>, ...]
"main": <main js perf runner file>,
"results_regexp": <optional regexp>,
"results_processor": <optional python results processor script>,
"units": <the unit specification for the performance dashboard>,
"process_size": <flag - collect maximum memory used by the process>,
"tests": [
"name": <name of the trace>,
"results_regexp": <optional more specific regexp>,
"results_processor": <optional python results processor script>,
"units": <the unit specification for the performance dashboard>,
"process_size": <flag - collect maximum memory used by the process>,
}, ...
The tests field can also nest other suites in arbitrary depth. A suite
with a "main" file is a leaf suite that can contain one more level of
A suite's results_regexp is expected to have one string place holder
"%s" for the trace name. A trace's results_regexp overwrites suite
A suite's results_processor may point to an optional python script. If
specified, it is called after running the tests (with a path relative to the
suite level's path). It is expected to read the measurement's output text
on stdin and print the processed output to stdout.
The results_regexp will be applied to the processed output.
A suite without "tests" is considered a performance test itself.
Full example (suite with one runner):
"path": ["."],
"flags": ["--expose-gc"],
"test_flags": ["5"],
"archs": ["ia32", "x64"],
"run_count": 5,
"run_count_ia32": 3,
"main": "run.js",
"results_regexp": "^%s: (.+)$",
"units": "score",
"tests": [
{"name": "Richards"},
{"name": "DeltaBlue"},
{"name": "NavierStokes",
"results_regexp": "^NavierStokes: (.+)$"}
Full example (suite with several runners):
"path": ["."],
"flags": ["--expose-gc"],
"archs": ["ia32", "x64"],
"run_count": 5,
"units": "score",
"tests": [
{"name": "Richards",
"path": ["richards"],
"main": "run.js",
"run_count": 3,
"results_regexp": "^Richards: (.+)$"},
{"name": "NavierStokes",
"path": ["navier_stokes"],
"main": "run.js",
"results_regexp": "^NavierStokes: (.+)$"}
Path pieces are concatenated. D8 is always run with the suite's path as cwd.
The test flags are passed to the js test file after '--'.
from collections import OrderedDict
import json
import logging
import math
import optparse
import os
import re
import subprocess
import sys
from testrunner.local import command
from testrunner.local import utils
ARCH_GUESS = utils.DefaultArch()
GENERIC_RESULTS_RE = re.compile(r"^RESULT ([^:]+): ([^=]+)= ([^ ]+) ([^ ]*)$")
RESULT_STDDEV_RE = re.compile(r"^\{([^\}]+)\}$")
RESULT_LIST_RE = re.compile(r"^\[([^\]]+)\]$")
TOOLS_BASE = os.path.abspath(os.path.dirname(__file__))
def LoadAndroidBuildTools(path): # pragma: no cover
assert os.path.exists(path)
sys.path.insert(0, path)
import devil_chromium
from import device_errors # pylint: disable=import-error
from import device_utils # pylint: disable=import-error
from import adb_wrapper # pylint: disable=import-error
from import cache_control # pylint: disable=import-error
from import perf_control # pylint: disable=import-error
global adb_wrapper
global cache_control
global device_errors
global device_utils
global perf_control
def GeometricMean(values):
"""Returns the geometric mean of a list of values.
The mean is calculated using log to avoid overflow.
values = map(float, values)
return str(math.exp(sum(map(math.log, values)) / len(values)))
class Results(object):
"""Place holder for result traces."""
def __init__(self, traces=None, errors=None):
self.traces = traces or []
self.errors = errors or []
def ToDict(self):
return {"traces": self.traces, "errors": self.errors}
def WriteToFile(self, file_name):
with open(file_name, "w") as f:
def __add__(self, other):
self.traces += other.traces
self.errors += other.errors
return self
def __str__(self): # pragma: no cover
return str(self.ToDict())
class Measurement(object):
"""Represents a series of results of one trace.
The results are from repetitive runs of the same executable. They are
gathered by repeated calls to ConsumeOutput.
def __init__(self, graphs, units, results_regexp, stddev_regexp): = '/'.join(graphs)
self.graphs = graphs
self.units = units
self.results_regexp = results_regexp
self.stddev_regexp = stddev_regexp
self.results = []
self.errors = []
self.stddev = ""
self.process_size = False
def ConsumeOutput(self, stdout):
result =, stdout, re.M).group(1)
except ValueError:
self.errors.append("Regexp \"%s\" returned a non-numeric for test %s."
% (self.results_regexp,
self.errors.append("Regexp \"%s\" didn't match for test %s."
% (self.results_regexp,
if self.stddev_regexp and self.stddev:
self.errors.append("Test %s should only run once since a stddev "
"is provided by the test." %
if self.stddev_regexp:
self.stddev =, stdout, re.M).group(1)
self.errors.append("Regexp \"%s\" didn't match for test %s."
% (self.stddev_regexp,
def GetResults(self):
return Results([{
"graphs": self.graphs,
"units": self.units,
"results": self.results,
"stddev": self.stddev,
}], self.errors)
class NullMeasurement(object):
"""Null object to avoid having extra logic for configurations that don't
require secondary run, e.g. CI bots.
def ConsumeOutput(self, stdout):
def GetResults(self):
return Results()
def Unzip(iterable):
left = []
right = []
for l, r in iterable:
return lambda: iter(left), lambda: iter(right)
def RunResultsProcessor(results_processor, stdout, count):
# Dummy pass through for null-runs.
if stdout is None:
return None
# We assume the results processor is relative to the suite.
assert os.path.exists(results_processor)
p = subprocess.Popen(
[sys.executable, results_processor],
result, _ = p.communicate(input=stdout)
print ">>> Processed stdout (#%d):" % count
print result
return result
def AccumulateResults(
graph_names, trace_configs, iter_output, perform_measurement, calc_total):
"""Iterates over the output of multiple benchmark reruns and accumulates
results for a configured list of traces.
graph_names: List of names that configure the base path of the traces. E.g.
['v8', 'Octane'].
trace_configs: List of "TraceConfig" instances. Each trace config defines
how to perform a measurement.
iter_output: Iterator over the standard output of each test run.
perform_measurement: Whether to actually run tests and perform measurements.
This is needed so that we reuse this script for both CI
and trybot, but want to ignore second run on CI without
having to spread this logic throughout the script.
calc_total: Boolean flag to speficy the calculation of a summary trace.
Returns: A "Results" object.
measurements = [
trace.CreateMeasurement(perform_measurement) for trace in trace_configs]
for stdout in iter_output():
for measurement in measurements:
res = reduce(lambda r, m: r + m.GetResults(), measurements, Results())
if not res.traces or not calc_total:
return res
# Assume all traces have the same structure.
if len(set(map(lambda t: len(t["results"]), res.traces))) != 1:
res.errors.append("Not all traces have the same number of results.")
return res
# Calculate the geometric means for all traces. Above we made sure that
# there is at least one trace and that the number of results is the same
# for each trace.
n_results = len(res.traces[0]["results"])
total_results = [GeometricMean(t["results"][i] for t in res.traces)
for i in range(0, n_results)]
"graphs": graph_names + ["Total"],
"units": res.traces[0]["units"],
"results": total_results,
"stddev": "",
return res
def AccumulateGenericResults(graph_names, suite_units, iter_output):
"""Iterates over the output of multiple benchmark reruns and accumulates
generic results.
graph_names: List of names that configure the base path of the traces. E.g.
['v8', 'Octane'].
suite_units: Measurement default units as defined by the benchmark suite.
iter_output: Iterator over the standard output of each test run.
Returns: A "Results" object.
traces = OrderedDict()
for stdout in iter_output():
if stdout is None:
# The None value is used as a null object to simplify logic.
for line in stdout.strip().splitlines():
match = GENERIC_RESULTS_RE.match(line)
if match:
stddev = ""
graph =
trace =
body =
units =
match_stddev = RESULT_STDDEV_RE.match(body)
match_list = RESULT_LIST_RE.match(body)
errors = []
if match_stddev:
result, stddev = map(str.strip,","))
results = [result]
elif match_list:
results = map(str.strip,","))
results = [body.strip()]
results = map(lambda r: str(float(r)), results)
except ValueError:
results = []
errors = ["Found non-numeric in %s" %
"/".join(graph_names + [graph, trace])]
trace_result = traces.setdefault(trace, Results([{
"graphs": graph_names + [graph, trace],
"units": (units or suite_units).strip(),
"results": [],
"stddev": "",
}], errors))
trace_result.traces[0]["stddev"] = stddev
return reduce(lambda r, t: r + t, traces.itervalues(), Results())
class Node(object):
"""Represents a node in the suite tree structure."""
def __init__(self, *args):
self._children = []
def AppendChild(self, child):
class DefaultSentinel(Node):
"""Fake parent node with all default values."""
def __init__(self, binary = "d8"):
super(DefaultSentinel, self).__init__()
self.binary = binary
self.run_count = 10
self.timeout = 60
self.path = []
self.graphs = []
self.flags = []
self.test_flags = []
self.process_size = False
self.resources = []
self.results_processor = None
self.results_regexp = None
self.stddev_regexp = None
self.units = "score" = False
class GraphConfig(Node):
"""Represents a suite definition.
Can either be a leaf or an inner node that provides default values.
def __init__(self, suite, parent, arch):
super(GraphConfig, self).__init__()
self._suite = suite
assert isinstance(suite.get("path", []), list)
assert isinstance(suite["name"], basestring)
assert isinstance(suite.get("flags", []), list)
assert isinstance(suite.get("test_flags", []), list)
assert isinstance(suite.get("resources", []), list)
# Accumulated values.
self.path = parent.path[:] + suite.get("path", [])
self.graphs = parent.graphs[:] + [suite["name"]]
self.flags = parent.flags[:] + suite.get("flags", [])
self.test_flags = parent.test_flags[:] + suite.get("test_flags", [])
# Values independent of parent node.
self.resources = suite.get("resources", [])
# Descrete values (with parent defaults).
self.binary = suite.get("binary", parent.binary)
self.run_count = suite.get("run_count", parent.run_count)
self.run_count = suite.get("run_count_%s" % arch, self.run_count)
self.timeout = suite.get("timeout", parent.timeout)
self.timeout = suite.get("timeout_%s" % arch, self.timeout)
self.units = suite.get("units", parent.units) = suite.get("total",
self.results_processor = suite.get(
"results_processor", parent.results_processor)
self.process_size = suite.get("process_size", parent.process_size)
# A regular expression for results. If the parent graph provides a
# regexp and the current suite has none, a string place holder for the
# suite name is expected.
# TODO(machenbach): Currently that makes only sense for the leaf level.
# Multiple place holders for multiple levels are not supported.
if parent.results_regexp:
regexp_default = parent.results_regexp % re.escape(suite["name"])
regexp_default = None
self.results_regexp = suite.get("results_regexp", regexp_default)
# A similar regular expression for the standard deviation (optional).
if parent.stddev_regexp:
stddev_default = parent.stddev_regexp % re.escape(suite["name"])
stddev_default = None
self.stddev_regexp = suite.get("stddev_regexp", stddev_default)
class TraceConfig(GraphConfig):
"""Represents a leaf in the suite tree structure."""
def __init__(self, suite, parent, arch):
super(TraceConfig, self).__init__(suite, parent, arch)
assert self.results_regexp
def CreateMeasurement(self, perform_measurement):
if not perform_measurement:
return NullMeasurement()
return Measurement(
class RunnableConfig(GraphConfig):
"""Represents a runnable suite definition (i.e. has a main file).
def main(self):
return self._suite.get("main", "")
def PostProcess(self, stdouts_iter):
if self.results_processor:
def it():
for i, stdout in enumerate(stdouts_iter()):
yield RunResultsProcessor(self.results_processor, stdout, i + 1)
return it
return stdouts_iter
def ChangeCWD(self, suite_path):
"""Changes the cwd to to path defined in the current graph.
The tests are supposed to be relative to the suite configuration.
suite_dir = os.path.abspath(os.path.dirname(suite_path))
bench_dir = os.path.normpath(os.path.join(*self.path))
os.chdir(os.path.join(suite_dir, bench_dir))
def GetCommandFlags(self, extra_flags=None):
suffix = ["--"] + self.test_flags if self.test_flags else []
return self.flags + (extra_flags or []) + [self.main] + suffix
def GetCommand(self, cmd_prefix, shell_dir, extra_flags=None):
# TODO(machenbach): This requires +.exe if run on windows.
extra_flags = extra_flags or []
if self.binary != 'd8' and '--prof' in extra_flags:
print "Profiler supported only on a benchmark run with d8"
if self.process_size:
cmd_prefix = ["/usr/bin/time", "--format=MaxMemory: %MKB"] + cmd_prefix
if self.binary.endswith('.py'):
# Copy cmd_prefix instead of update (+=).
cmd_prefix = cmd_prefix + [sys.executable]
return command.Command(
shell=os.path.join(shell_dir, self.binary),
timeout=self.timeout or 60)
def Run(self, runner, trybot):
"""Iterates over several runs and handles the output for all traces."""
stdout, stdout_secondary = Unzip(runner())
return (
perform_measurement=trybot, # only run second time on trybots,
class RunnableTraceConfig(TraceConfig, RunnableConfig):
"""Represents a runnable suite definition that is a leaf."""
def __init__(self, suite, parent, arch):
super(RunnableTraceConfig, self).__init__(suite, parent, arch)
def Run(self, runner, trybot):
"""Iterates over several runs and handles the output."""
measurement = self.CreateMeasurement(perform_measurement=True)
measurement_secondary = self.CreateMeasurement(perform_measurement=trybot)
for stdout, stdout_secondary in runner():
return (
class RunnableGenericConfig(RunnableConfig):
"""Represents a runnable suite definition with generic traces."""
def __init__(self, suite, parent, arch):
super(RunnableGenericConfig, self).__init__(suite, parent, arch)
def Run(self, runner, trybot):
stdout, stdout_secondary = Unzip(runner())
return (
AccumulateGenericResults(self.graphs, self.units, stdout),
AccumulateGenericResults(self.graphs, self.units, stdout_secondary),
def MakeGraphConfig(suite, arch, parent):
"""Factory method for making graph configuration objects."""
if isinstance(parent, RunnableConfig):
# Below a runnable can only be traces.
return TraceConfig(suite, parent, arch)
elif suite.get("main") is not None:
# A main file makes this graph runnable. Empty strings are accepted.
if suite.get("tests"):
# This graph has subgraphs (traces).
return RunnableConfig(suite, parent, arch)
# This graph has no subgraphs, it's a leaf.
return RunnableTraceConfig(suite, parent, arch)
elif suite.get("generic"):
# This is a generic suite definition. It is either a runnable executable
# or has a main js file.
return RunnableGenericConfig(suite, parent, arch)
elif suite.get("tests"):
# This is neither a leaf nor a runnable.
return GraphConfig(suite, parent, arch)
else: # pragma: no cover
raise Exception("Invalid suite configuration.")
def BuildGraphConfigs(suite, arch, parent):
"""Builds a tree structure of graph objects that corresponds to the suite
# TODO(machenbach): Implement notion of cpu type?
if arch not in suite.get("archs", SUPPORTED_ARCHS):
return None
graph = MakeGraphConfig(suite, arch, parent)
for subsuite in suite.get("tests", []):
BuildGraphConfigs(subsuite, arch, graph)
return graph
def FlattenRunnables(node, node_cb):
"""Generator that traverses the tree structure and iterates over all
if isinstance(node, RunnableConfig):
yield node
elif isinstance(node, Node):
for child in node._children:
for result in FlattenRunnables(child, node_cb):
yield result
else: # pragma: no cover
raise Exception("Invalid suite configuration.")
class Platform(object):
def __init__(self, options):
self.shell_dir = options.shell_dir
self.shell_dir_secondary = options.shell_dir_secondary
self.extra_flags = options.extra_flags.split()
def GetPlatform(options):
if options.android_build_tools:
return AndroidPlatform(options)
return DesktopPlatform(options)
def _Run(self, runnable, count, secondary=False):
raise NotImplementedError() # pragma: no cover
def Run(self, runnable, count):
"""Execute the benchmark's main file.
If options.shell_dir_secondary is specified, the benchmark is run twice,
e.g. with and without patch.
runnable: A Runnable benchmark instance.
count: The number of this (repeated) run.
Returns: A tuple with the two benchmark outputs. The latter will be None if
options.shell_dir_secondary was not specified.
stdout = self._Run(runnable, count, secondary=False)
if self.shell_dir_secondary:
return stdout, self._Run(runnable, count, secondary=True)
return stdout, None
class DesktopPlatform(Platform):
def __init__(self, options):
super(DesktopPlatform, self).__init__(options)
self.command_prefix = []
if options.prioritize or options.affinitize != None:
self.command_prefix = ["schedtool"]
if options.prioritize:
self.command_prefix += ["-n", "-20"]
if options.affinitize != None:
# schedtool expects a bit pattern when setting affinity, where each
# bit set to '1' corresponds to a core where the process may run on.
# First bit corresponds to CPU 0. Since the 'affinitize' parameter is
# a core number, we need to map to said bit pattern.
cpu = int(options.affinitize)
core = 1 << cpu
self.command_prefix += ["-a", ("0x%x" % core)]
self.command_prefix += ["-e"]
def PreExecution(self):
def PostExecution(self):
def PreTests(self, node, path):
if isinstance(node, RunnableConfig):
def _Run(self, runnable, count, secondary=False):
suffix = ' - secondary' if secondary else ''
shell_dir = self.shell_dir_secondary if secondary else self.shell_dir
title = ">>> %%s (#%d)%s:" % ((count + 1), suffix)
cmd = runnable.GetCommand(self.command_prefix, shell_dir, self.extra_flags)
output = cmd.execute()
except OSError as e: # pragma: no cover
print title % "OSError"
print e
return ""
print title % "Stdout"
print output.stdout
if output.stderr: # pragma: no cover
# Print stderr for debugging.
print title % "Stderr"
print output.stderr
if output.timed_out:
print ">>> Test timed out after %ss." % runnable.timeout
if '--prof' in self.extra_flags:
os_prefix = {"linux": "linux", "macos": "mac"}.get(utils.GuessOS())
if os_prefix:
tick_tools = os.path.join(TOOLS_BASE, "%s-tick-processor" % os_prefix)
subprocess.check_call(tick_tools + " --only-summary", shell=True)
else: # pragma: no cover
print "Profiler option currently supported on Linux and Mac OS."
# time outputs to stderr
if runnable.process_size:
return output.stdout + output.stderr
return output.stdout
class AndroidPlatform(Platform): # pragma: no cover
DEVICE_DIR = "/data/local/tmp/v8/"
def __init__(self, options):
super(AndroidPlatform, self).__init__(options)
if not options.device:
# Detect attached device if not specified.
devices = adb_wrapper.AdbWrapper.Devices()
assert devices and len(devices) == 1, (
"None or multiple devices detected. Please specify the device on "
"the command-line with --device")
options.device = str(devices[0])
self.adb_wrapper = adb_wrapper.AdbWrapper(options.device)
self.device = device_utils.DeviceUtils(self.adb_wrapper)
def PreExecution(self):
perf = perf_control.PerfControl(self.device)
# Remember what we have already pushed to the device.
self.pushed = set()
def PostExecution(self):
perf = perf_control.PerfControl(self.device)
AndroidPlatform.DEVICE_DIR, force=True, recursive=True)
def _PushFile(self, host_dir, file_name, target_rel=".",
file_on_host = os.path.join(host_dir, file_name)
file_on_device_tmp = os.path.join(
AndroidPlatform.DEVICE_DIR, "_tmp_", file_name)
file_on_device = os.path.join(
AndroidPlatform.DEVICE_DIR, target_rel, file_name)
folder_on_device = os.path.dirname(file_on_device)
# Only attempt to push files that exist.
if not os.path.exists(file_on_host):
if not skip_if_missing:
logging.critical('Missing file on host: %s' % file_on_host)
# Only push files not yet pushed in one execution.
if file_on_host in self.pushed:
# Work-around for "text file busy" errors. Push the files to a temporary
# location and then copy them with a shell command.
output = self.adb_wrapper.Push(file_on_host, file_on_device_tmp)
# Success looks like this: "3035 KB/s (12512056 bytes in 4.025s)".
# Errors look like this: "failed to copy ... ".
if output and not'^[0-9]', output.splitlines()[-1]):
logging.critical('PUSH FAILED: ' + output)
self.adb_wrapper.Shell("mkdir -p %s" % folder_on_device)
self.adb_wrapper.Shell("cp %s %s" % (file_on_device_tmp, file_on_device))
def _PushExecutable(self, shell_dir, target_dir, binary):
self._PushFile(shell_dir, binary, target_dir)
# Push external startup data. Backwards compatible for revisions where
# these files didn't exist.
def PreTests(self, node, path):
if isinstance(node, RunnableConfig):
suite_dir = os.path.abspath(os.path.dirname(path))
if node.path:
bench_rel = os.path.normpath(os.path.join(*node.path))
bench_abs = os.path.join(suite_dir, bench_rel)
bench_rel = "."
bench_abs = suite_dir
self._PushExecutable(self.shell_dir, "bin", node.binary)
if self.shell_dir_secondary:
self.shell_dir_secondary, "bin_secondary", node.binary)
if isinstance(node, RunnableConfig):
self._PushFile(bench_abs, node.main, bench_rel)
for resource in node.resources:
self._PushFile(bench_abs, resource, bench_rel)
def _Run(self, runnable, count, secondary=False):
suffix = ' - secondary' if secondary else ''
target_dir = "bin_secondary" if secondary else "bin"
title = ">>> %%s (#%d)%s:" % ((count + 1), suffix)
cache = cache_control.CacheControl(self.device)
binary_on_device = os.path.join(
AndroidPlatform.DEVICE_DIR, target_dir, runnable.binary)
cmd = [binary_on_device] + runnable.GetCommandFlags(self.extra_flags)
# Relative path to benchmark directory.
if runnable.path:
bench_rel = os.path.normpath(os.path.join(*runnable.path))
bench_rel = "."
output = self.device.RunShellCommand(
cwd=os.path.join(AndroidPlatform.DEVICE_DIR, bench_rel),
stdout = "\n".join(output)
print title % "Stdout"
print stdout
except device_errors.CommandTimeoutError:
print ">>> Test timed out after %ss." % runnable.timeout
stdout = ""
if runnable.process_size:
return stdout + "MaxMemory: Unsupported"
return stdout
class CustomMachineConfiguration:
def __init__(self, disable_aslr = False, governor = None):
self.aslr_backup = None
self.governor_backup = None
self.disable_aslr = disable_aslr
self.governor = governor
def __enter__(self):
if self.disable_aslr:
self.aslr_backup = CustomMachineConfiguration.GetASLR()
if self.governor != None:
self.governor_backup = CustomMachineConfiguration.GetCPUGovernor()
return self
def __exit__(self, type, value, traceback):
if self.aslr_backup != None:
if self.governor_backup != None:
def GetASLR():
with open("/proc/sys/kernel/randomize_va_space", "r") as f:
return int(f.readline().strip())
except Exception as e:
print "Failed to get current ASLR settings."
raise e
def SetASLR(value):
with open("/proc/sys/kernel/randomize_va_space", "w") as f:
except Exception as e:
print "Failed to update ASLR to %s." % value
print "Are we running under sudo?"
raise e
new_value = CustomMachineConfiguration.GetASLR()
if value != new_value:
raise Exception("Present value is %s" % new_value)
def GetCPUCoresRange():
with open("/sys/devices/system/cpu/present", "r") as f:
indexes = f.readline()
r = map(int, indexes.split("-"))
if len(r) == 1:
return range(r[0], r[0] + 1)
return range(r[0], r[1] + 1)
except Exception as e:
print "Failed to retrieve number of CPUs."
raise e
def GetCPUPathForId(cpu_index):
ret = "/sys/devices/system/cpu/cpu"
ret += str(cpu_index)
ret += "/cpufreq/scaling_governor"
return ret
def GetCPUGovernor():
cpu_indices = CustomMachineConfiguration.GetCPUCoresRange()
ret = None
for cpu_index in cpu_indices:
cpu_device = CustomMachineConfiguration.GetCPUPathForId(cpu_index)
with open(cpu_device, "r") as f:
# We assume the governors of all CPUs are set to the same value
val = f.readline().strip()
if ret == None:
ret = val
elif ret != val:
raise Exception("CPU cores have differing governor settings")
return ret
except Exception as e:
print "Failed to get the current CPU governor."
print "Is the CPU governor disabled? Check BIOS."
raise e
def SetCPUGovernor(value):
cpu_indices = CustomMachineConfiguration.GetCPUCoresRange()
for cpu_index in cpu_indices:
cpu_device = CustomMachineConfiguration.GetCPUPathForId(cpu_index)
with open(cpu_device, "w") as f:
except Exception as e:
print "Failed to change CPU governor to %s." % value
print "Are we running under sudo?"
raise e
cur_value = CustomMachineConfiguration.GetCPUGovernor()
if cur_value != value:
raise Exception("Could not set CPU governor. Present value is %s"
% cur_value )
def Main(args):
parser = optparse.OptionParser()
help="Path to chromium's build/android. Specifying this "
"option will run tests using android platform.")
help=("The architecture to run tests for, "
"'auto' or 'native' for auto-detect"),
help="Adapt to path structure used on buildbots",
default=False, action="store_true")
help="The device ID to run Android tests on. If not given "
"it will be autodetected.")
help="Additional flags to pass to the test executable",
help="Path to a file for storing json results.")
"--json-test-results-no-patch", # TODO(sergiyb): Deprecate.
help="Path to a file for storing json results from run "
"without patch or for reference build run.")
parser.add_option("--outdir", help="Base directory with compile output",
"--outdir-no-patch", # TODO(sergiyb): Deprecate.
help="Base directory with compile output without patch or "
"for reference build")
help="JavaScript engine binary. By default, d8 under "
"architecture-specific build dir. "
"Not supported in conjunction with outdir-secondary.")
help="Raise the priority to nice -20 for the benchmarking "
"process.Requires Linux, schedtool, and sudo privileges.",
default=False, action="store_true")
help="Run benchmarking process on the specified core. "
"For example: "
"--affinitize=0 will run the benchmark process on core 0. "
"--affinitize=3 will run the benchmark process on core 3. "
"Requires Linux, schedtool, and sudo privileges.",
help="Disable ASLR for the duration of the benchmarked "
"process. Requires Linux and sudo privileges.",
default=False, action="store_true")
help="Set cpu governor to specified policy for the "
"duration of the benchmarked process. Typical options: "
"'powersave' for more stable results, or 'performance' "
"for shorter completion time of suite, with potentially "
"more noise in results.")
help="Only run the benchmarks beginning with this string. "
"For example: "
"--filter=JSTests/TypedArrays/ will run only TypedArray "
"benchmarks from the JSTests suite.",
(options, args) = parser.parse_args(args)
if len(args) == 0: # pragma: no cover
return 1
if options.arch in ["auto", "native"]: # pragma: no cover
options.arch = ARCH_GUESS
if not options.arch in SUPPORTED_ARCHS: # pragma: no cover
print "Unknown architecture %s" % options.arch
return 1
if options.device and not options.android_build_tools: # pragma: no cover
print "Specifying a device requires Android build tools."
return 1
if (options.json_test_results_secondary and
not options.outdir_secondary): # pragma: no cover
print("For writing secondary json test results, a secondary outdir patch "
"must be specified.")
return 1
workspace = os.path.abspath(os.path.join(os.path.dirname(__file__), ".."))
if options.buildbot:
build_config = "Release"
build_config = "%s.release" % options.arch
if options.binary_override_path == None:
options.shell_dir = os.path.join(workspace, options.outdir, build_config)
default_binary_name = "d8"
if not os.path.isfile(options.binary_override_path):
print "binary-override-path must be a file name"
return 1
if options.outdir_secondary:
print "specify either binary-override-path or outdir-secondary"
return 1
options.shell_dir = os.path.abspath(
default_binary_name = os.path.basename(options.binary_override_path)
if options.outdir_secondary:
options.shell_dir_secondary = os.path.join(
workspace, options.outdir_secondary, build_config)
options.shell_dir_secondary = None
if options.json_test_results:
options.json_test_results = os.path.abspath(options.json_test_results)
if options.json_test_results_secondary:
options.json_test_results_secondary = os.path.abspath(
# Ensure all arguments have absolute path before we start changing current
# directory.
args = map(os.path.abspath, args)
prev_aslr = None
prev_cpu_gov = None
platform = Platform.GetPlatform(options)
results = Results()
results_secondary = Results()
with CustomMachineConfiguration(governor = options.cpu_governor,
disable_aslr = options.noaslr) as conf:
for path in args:
if not os.path.exists(path): # pragma: no cover
results.errors.append("Configuration file %s does not exist." % path)
with open(path) as f:
suite = json.loads(
# If no name is given, default to the file name without .json.
suite.setdefault("name", os.path.splitext(os.path.basename(path))[0])
# Setup things common to one test suite.
# Build the graph/trace tree structure.
default_parent = DefaultSentinel(default_binary_name)
root = BuildGraphConfigs(suite, options.arch, default_parent)
# Callback to be called on each node on traversal.
def NodeCB(node):
platform.PreTests(node, path)
# Traverse graph/trace tree and iterate over all runnables.
for runnable in FlattenRunnables(root, NodeCB):
runnable_name = "/".join(runnable.graphs)
if not runnable_name.startswith(options.filter):
print ">>> Running suite: %s" % runnable_name
def Runner():
"""Output generator that reruns several times."""
for i in xrange(0, max(1, runnable.run_count)):
# TODO(machenbach): Allow timeout per arch like with run_count per
# arch.
yield platform.Run(runnable, i)
# Let runnable iterate over all runs and handle output.
result, result_secondary = runnable.Run(
Runner, trybot=options.shell_dir_secondary)
results += result
results_secondary += result_secondary
if options.json_test_results:
else: # pragma: no cover
print results
if options.json_test_results_secondary:
else: # pragma: no cover
print results_secondary
return min(1, len(results.errors))
if __name__ == "__main__": # pragma: no cover