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#!/usr/bin/pyton
# Copyright 2017 Google Inc.
#
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
import os
import sys
import subprocess
import multiprocessing
from argparse import ArgumentParser
README = """
Simply run
\033[36m
python {0} TEST_GIT_BRANCH
\033[0m
to see if TEST_GIT_BRANCH has performance regressions against master in 8888.
To compare a specific config with svg and skp resources included, add --config
and --extraarg option. For exampe,
\033[36m
python {0} TEST_GIT_BRANCH --config gl \\
--extraarg "--svgs ~/Desktop/bots/svgs --skps ~/Desktop/bots/skps"
\033[0m
For more options, please see
python {0} --help
""".format(__file__)
CURRENT_DIR = os.path.dirname(os.path.abspath(__file__))
AB_SCRIPT = "ab.py"
def parse_args():
if len(sys.argv) <= 1 or sys.argv[1] == '-h' or sys.argv[1] == '--help':
print README
parser = ArgumentParser(
description='Noiselessly (hence calm) becnhmark a git branch against ' +
'another baseline branch (e.g., master) using multiple ' +
' nanobench runs.'
)
default_threads = max(1, multiprocessing.cpu_count() / 2);
default_skiadir = os.path.normpath(CURRENT_DIR + "/../../")
config_help = (
'nanobench config; we currently support only one config '
'at a time (default: %(default)s)')
reps_help = (
'initial repititions of the nanobench run; this may be '
'overridden when we have many threads (default: %(default)s)')
extraarg_help = (
'nanobench args (example: --svgs ~/Desktop/bots/svgs --skps '
'~/Desktop/bots/skps)')
baseline_help = (
'baseline branch to compare against (default: %(default)s)')
basearg_help = (
'nanobench arg for the baseline branch; if not given, we use '
' the same arg for both the test branch and the baseline branch')
threads_help = (
'number of threads to be used (default: %(default)s); '
'for GPU config, this will always be 1')
no_compile_help = (
'whether NOT to compile nanobench and copy it to WRITEDIR '
'(i.e., reuse previous nanobench compiled)')
skip_base_help = (
'whether NOT to run nanobench on baseline branch '
'(i.e., reuse previous baseline measurements)')
noinit_help = (
'whether to skip initial nanobench runs (default: %(default)s)')
branch_help = (
"the test branch to benchmark; if it's 'modified', we'll benchmark the "
"current modified code against 'git stash'.")
definitions = [
# argname, type, default value, help
['--config', str, '8888', config_help],
['--skiadir', str, default_skiadir, 'default: %(default)s'],
['--ninjadir', str, 'out/Release', 'default: %(default)s'],
['--writedir', str, '/var/tmp', 'default: %(default)s'],
['--extraarg', str, '', extraarg_help],
['--baseline', str, 'master', baseline_help],
['--basearg', str, '', basearg_help],
['--reps', int, 2, reps_help],
['--threads', int, default_threads, threads_help],
]
for d in definitions:
parser.add_argument(d[0], type=d[1], default=d[2], help=d[3])
parser.add_argument('branch', type=str, help=branch_help)
parser.add_argument('--no-compile', dest='no_compile', action="store_true",
help=no_compile_help)
parser.add_argument('--skip-base', dest='skipbase', action="store_true",
help=skip_base_help)
parser.add_argument('--noinit', dest='noinit', action="store_true",
help=noinit_help)
parser.add_argument('--concise', dest='concise', action="store_true",
help="If set, no verbose thread info will be printed.")
parser.set_defaults(no_compile=False);
parser.set_defaults(skipbase=False);
parser.set_defaults(noinit=False);
parser.set_defaults(concise=False);
# Additional args for bots
BHELP = "bot specific options"
parser.add_argument('--githash', type=str, help=BHELP)
parser.add_argument('--keys', type=str, default=[], nargs='+', help=BHELP)
args = parser.parse_args()
if not args.basearg:
args.basearg = args.extraarg
return args
def nano_path(args, branch):
return args.writedir + '/nanobench_' + branch
def compile_branch(args, branch):
print "Compiling branch %s" % args.branch
commands = [
['git', 'checkout', branch],
['ninja', '-C', args.ninjadir, 'nanobench'],
['cp', args.ninjadir + '/nanobench', nano_path(args, branch)]
]
for command in commands:
subprocess.check_call(command, cwd=args.skiadir)
def compile_modified(args):
print "Compiling modified code"
subprocess.check_call(
['ninja', '-C', args.ninjadir, 'nanobench'], cwd=args.skiadir)
subprocess.check_call(
['cp', args.ninjadir + '/nanobench', nano_path(args, args.branch)],
cwd=args.skiadir)
print "Compiling stashed code"
stash_output = subprocess.check_output(['git', 'stash'], cwd=args.skiadir)
if 'No local changes to save' in stash_output:
subprocess.check_call(['git', 'reset', 'HEAD^', '--soft'])
subprocess.check_call(['git', 'stash'])
subprocess.check_call(['gclient', 'sync'], cwd=args.skiadir)
subprocess.check_call(
['ninja', '-C', args.ninjadir, 'nanobench'], cwd=args.skiadir)
subprocess.check_call(
['cp', args.ninjadir + '/nanobench', nano_path(args, args.baseline)],
cwd=args.skiadir)
subprocess.check_call(['git', 'stash', 'pop'], cwd=args.skiadir)
def compile_nanobench(args):
if args.branch == 'modified':
compile_modified(args)
else:
compile_branch(args, args.branch)
compile_branch(args, args.baseline)
def main():
args = parse_args()
# copy in case that it will be gone after git branch switching
orig_ab_name = CURRENT_DIR + "/" + AB_SCRIPT
temp_ab_name = args.writedir + "/" + AB_SCRIPT
subprocess.check_call(['cp', orig_ab_name, temp_ab_name])
if not args.no_compile:
compile_nanobench(args)
command = [
'python',
temp_ab_name,
args.writedir,
args.branch + ("_A" if args.branch == args.baseline else ""),
args.baseline + ("_B" if args.branch == args.baseline else ""),
nano_path(args, args.branch),
nano_path(args, args.baseline),
args.extraarg,
args.basearg,
str(args.reps),
"true" if args.skipbase else "false",
args.config,
str(args.threads if args.config in ["8888", "565"] else 1),
"true" if args.noinit else "false"
]
if args.githash:
command += ['--githash', args.githash]
if args.keys:
command += (['--keys'] + args.keys)
if args.concise:
command.append("--concise")
p = subprocess.Popen(command, cwd=args.skiadir)
try:
p.wait()
except KeyboardInterrupt:
try:
p.terminate()
except OSError as e:
print e
if __name__ == "__main__":
main()