v8/tools/run_perf.py
machenbach e471bef904 Abstract platform in perf runner.
This is basically a refactoring that extracts desktop
specific code into a separate class.

Also adds flags for android runs (not used yet).

BUG=chromium:374740
LOG=n
TEST=python -m unittest run_perf_test
NOTRY=true

Review URL: https://codereview.chromium.org/762163002

Cr-Commit-Position: refs/heads/master@{#25576}
2014-11-28 18:39:45 +00:00

563 lines
18 KiB
Python
Executable File

#!/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/run-perf.py --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>,
"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>,
}, ...
]
}
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
tests.
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
defaults.
A suite's results_processor may point to an optional python script. If
specified, it is called after running the tests like this (with a path
relatve to the suite level's path):
<results_processor file> <same flags as for d8> <suite level name> <output>
The <output> is a temporary file containing d8 output. The results_regexp will
be applied to the output of this script.
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 math
import optparse
import os
import re
import sys
from testrunner.local import commands
from testrunner.local import utils
ARCH_GUESS = utils.DefaultArch()
SUPPORTED_ARCHS = ["android_arm",
"android_arm64",
"android_ia32",
"arm",
"ia32",
"mips",
"mipsel",
"nacl_ia32",
"nacl_x64",
"x64",
"arm64"]
GENERIC_RESULTS_RE = re.compile(r"^RESULT ([^:]+): ([^=]+)= ([^ ]+) ([^ ]*)$")
RESULT_STDDEV_RE = re.compile(r"^\{([^\}]+)\}$")
RESULT_LIST_RE = re.compile(r"^\[([^\]]+)\]$")
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:
f.write(json.dumps(self.ToDict()))
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 Node(object):
"""Represents a node in the suite tree structure."""
def __init__(self, *args):
self._children = []
def AppendChild(self, child):
self._children.append(child)
class DefaultSentinel(Node):
"""Fake parent node with all default values."""
def __init__(self):
super(DefaultSentinel, self).__init__()
self.binary = "d8"
self.run_count = 10
self.timeout = 60
self.path = []
self.graphs = []
self.flags = []
self.test_flags = []
self.resources = []
self.results_regexp = None
self.stddev_regexp = None
self.units = "score"
self.total = False
class Graph(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(Graph, 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", [])
self.resources = parent.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.units = suite.get("units", parent.units)
self.total = suite.get("total", parent.total)
# 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"])
else:
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"])
else:
stddev_default = None
self.stddev_regexp = suite.get("stddev_regexp", stddev_default)
class Trace(Graph):
"""Represents a leaf in the suite tree structure.
Handles collection of measurements.
"""
def __init__(self, suite, parent, arch):
super(Trace, self).__init__(suite, parent, arch)
assert self.results_regexp
self.results = []
self.errors = []
self.stddev = ""
def ConsumeOutput(self, stdout):
try:
self.results.append(
re.search(self.results_regexp, stdout, re.M).group(1))
except:
self.errors.append("Regexp \"%s\" didn't match for test %s."
% (self.results_regexp, self.graphs[-1]))
try:
if self.stddev_regexp and self.stddev:
self.errors.append("Test %s should only run once since a stddev "
"is provided by the test." % self.graphs[-1])
if self.stddev_regexp:
self.stddev = re.search(self.stddev_regexp, stdout, re.M).group(1)
except:
self.errors.append("Regexp \"%s\" didn't match for test %s."
% (self.stddev_regexp, self.graphs[-1]))
def GetResults(self):
return Results([{
"graphs": self.graphs,
"units": self.units,
"results": self.results,
"stddev": self.stddev,
}], self.errors)
class Runnable(Graph):
"""Represents a runnable suite definition (i.e. has a main file).
"""
@property
def main(self):
return self._suite.get("main", "")
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 GetCommand(self, shell_dir):
# TODO(machenbach): This requires +.exe if run on windows.
suffix = ["--"] + self.test_flags if self.test_flags else []
return (
[os.path.join(shell_dir, self.binary)] +
self.flags +
[self.main] +
suffix
)
def Run(self, runner):
"""Iterates over several runs and handles the output for all traces."""
for stdout in runner():
for trace in self._children:
trace.ConsumeOutput(stdout)
res = reduce(lambda r, t: r + t.GetResults(), self._children, Results())
if not res.traces or not self.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)]
res.traces.append({
"graphs": self.graphs + ["Total"],
"units": res.traces[0]["units"],
"results": total_results,
"stddev": "",
})
return res
class RunnableTrace(Trace, Runnable):
"""Represents a runnable suite definition that is a leaf."""
def __init__(self, suite, parent, arch):
super(RunnableTrace, self).__init__(suite, parent, arch)
def Run(self, runner):
"""Iterates over several runs and handles the output."""
for stdout in runner():
self.ConsumeOutput(stdout)
return self.GetResults()
class RunnableGeneric(Runnable):
"""Represents a runnable suite definition with generic traces."""
def __init__(self, suite, parent, arch):
super(RunnableGeneric, self).__init__(suite, parent, arch)
def Run(self, runner):
"""Iterates over several runs and handles the output."""
traces = OrderedDict()
for stdout in runner():
for line in stdout.strip().splitlines():
match = GENERIC_RESULTS_RE.match(line)
if match:
stddev = ""
graph = match.group(1)
trace = match.group(2)
body = match.group(3)
units = match.group(4)
match_stddev = RESULT_STDDEV_RE.match(body)
match_list = RESULT_LIST_RE.match(body)
if match_stddev:
result, stddev = map(str.strip, match_stddev.group(1).split(","))
results = [result]
elif match_list:
results = map(str.strip, match_list.group(1).split(","))
else:
results = [body.strip()]
trace_result = traces.setdefault(trace, Results([{
"graphs": self.graphs + [graph, trace],
"units": (units or self.units).strip(),
"results": [],
"stddev": "",
}], []))
trace_result.traces[0]["results"].extend(results)
trace_result.traces[0]["stddev"] = stddev
return reduce(lambda r, t: r + t, traces.itervalues(), Results())
def MakeGraph(suite, arch, parent):
"""Factory method for making graph objects."""
if isinstance(parent, Runnable):
# Below a runnable can only be traces.
return Trace(suite, parent, arch)
elif suite.get("main"):
# A main file makes this graph runnable.
if suite.get("tests"):
# This graph has subgraphs (traces).
return Runnable(suite, parent, arch)
else:
# This graph has no subgraphs, it's a leaf.
return RunnableTrace(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 RunnableGeneric(suite, parent, arch)
elif suite.get("tests"):
# This is neither a leaf nor a runnable.
return Graph(suite, parent, arch)
else: # pragma: no cover
raise Exception("Invalid suite configuration.")
def BuildGraphs(suite, arch, parent=None):
"""Builds a tree structure of graph objects that corresponds to the suite
configuration.
"""
parent = parent or DefaultSentinel()
# TODO(machenbach): Implement notion of cpu type?
if arch not in suite.get("archs", ["ia32", "x64"]):
return None
graph = MakeGraph(suite, arch, parent)
for subsuite in suite.get("tests", []):
BuildGraphs(subsuite, arch, graph)
parent.AppendChild(graph)
return graph
def FlattenRunnables(node):
"""Generator that traverses the tree structure and iterates over all
runnables.
"""
if isinstance(node, Runnable):
yield node
elif isinstance(node, Node):
for child in node._children:
for result in FlattenRunnables(child):
yield result
else: # pragma: no cover
raise Exception("Invalid suite configuration.")
class Platform(object):
@staticmethod
def GetPlatform(options):
if options.arch.startswith("android"):
return AndroidPlatform(options)
else:
return DesktopPlatform(options)
class DesktopPlatform(Platform):
def __init__(self, options):
workspace = os.path.abspath(os.path.join(os.path.dirname(__file__), ".."))
if options.buildbot:
self.shell_dir = os.path.join(workspace, options.outdir, "Release")
else:
self.shell_dir = os.path.join(workspace, options.outdir,
"%s.release" % options.arch)
def PrepareExecution(self):
pass
def PrepareTests(self, runnable, path):
runnable.ChangeCWD(path)
def Run(self, runnable, count):
output = commands.Execute(runnable.GetCommand(self.shell_dir),
timeout=runnable.timeout)
print ">>> Stdout (#%d):" % (count + 1)
print output.stdout
if output.stderr: # pragma: no cover
# Print stderr for debugging.
print ">>> Stderr (#%d):" % (count + 1)
print output.stderr
if output.timed_out:
print ">>> Test timed out after %ss." % runnable.timeout
return output.stdout
# TODO(machenbach): Implement android platform.
class AndroidPlatform(Platform):
def __init__(self, options):
pass
# TODO: Implement results_processor.
def Main(args):
parser = optparse.OptionParser()
parser.add_option("--android-build-tools",
help="Path to chromium's build/android.")
parser.add_option("--arch",
help=("The architecture to run tests for, "
"'auto' or 'native' for auto-detect"),
default="x64")
parser.add_option("--buildbot",
help="Adapt to path structure used on buildbots",
default=False, action="store_true")
parser.add_option("--device",
help="The device ID to run Android tests on. If not given "
"it will be autodetected.")
parser.add_option("--json-test-results",
help="Path to a file for storing json results.")
parser.add_option("--outdir", help="Base directory with compile output",
default="out")
(options, args) = parser.parse_args(args)
if len(args) == 0: # pragma: no cover
parser.print_help()
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 (bool(options.arch.startswith("android")) !=
bool(options.android_build_tools)): # pragma: no cover
print ("Android architectures imply setting --android-build-tools and the "
"other way around.")
return 1
if (options.device and not
options.arch.startswith("android")): # pragma: no cover
print "Specifying a device requires an Android architecture to be used."
return 1
platform = Platform.GetPlatform(options)
platform.PrepareExecution()
results = Results()
for path in args:
path = os.path.abspath(path)
if not os.path.exists(path): # pragma: no cover
results.errors.append("Configuration file %s does not exist." % path)
continue
with open(path) as f:
suite = json.loads(f.read())
# If no name is given, default to the file name without .json.
suite.setdefault("name", os.path.splitext(os.path.basename(path))[0])
for runnable in FlattenRunnables(BuildGraphs(suite, options.arch)):
print ">>> Running suite: %s" % "/".join(runnable.graphs)
platform.PrepareTests(runnable, path)
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.
results += runnable.Run(Runner)
if options.json_test_results:
results.WriteToFile(options.json_test_results)
else: # pragma: no cover
print results
return min(1, len(results.errors))
if __name__ == "__main__": # pragma: no cover
sys.exit(Main(sys.argv[1:]))