/
bench.py
executable file
·128 lines (107 loc) · 3.96 KB
/
bench.py
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#!/usr/bin/env python3
# Copyright 2022 ByteDance Inc.
#
# 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 tempfile
import os
import subprocess
import argparse
repeat_time = 100
gbench_prefix = "SONIC_NO_ASYNC_GC=1 go test -benchmem -run=none -count=%d "%(repeat_time)
def run(cmd):
print(cmd)
if os.system(cmd):
print ("Failed to run cmd: %s"%(cmd))
exit(1)
def run_s(cmd):
print (cmd)
try:
res = os.popen(cmd)
except subprocess.CalledProcessError as e:
if e.returncode:
print (e.output)
exit(1)
return res.read()
def run_r(cmd):
print (cmd)
try:
cmds = cmd.split(' ')
data = subprocess.check_output(cmds, stderr=subprocess.STDOUT)
except subprocess.CalledProcessError as e:
if e.returncode:
print (e.output)
exit(1)
return data.decode("utf-8")
def compare(args):
# detech current branch.
# result = run_r("git branch")
current_branch = run_s("git status | head -n1 | sed 's/On branch //'")
# for br in result.split('\n'):
# if br.startswith("* "):
# current_branch = br.lstrip('* ')
# break
if not current_branch:
print ("Failed to detech current branch")
return None
# get the current diff
(fd, diff) = tempfile.mkstemp()
run("git diff > %s"%diff)
# early return if currrent is main branch.
print ("Current branch: %s"%(current_branch))
if current_branch == "main":
print ("Cannot compare at the main branch.Please build a new branch")
return None
# benchmark current branch
(fd, target) = tempfile.mkstemp(".target.txt")
run("%s %s ./... 2>&1 | tee %s" %(gbench_prefix, args, target))
# trying to switch to the latest main branch
run("git checkout -- .")
if current_branch != "main":
run("git checkout main")
run("git pull --allow-unrelated-histories origin main")
# benchmark main branch
(fd, main) = tempfile.mkstemp(".main.txt")
run("%s %s ./... 2>&1 | tee %s" %(gbench_prefix, args, main))
# diff the result
benchstat = "go get golang.org/x/perf/cmd/benchstat && go install golang.org/x/perf/cmd/benchstat"
run( "%s && benchstat -sort=delta %s %s"%(benchstat, main, target))
run("git checkout -- .")
# restore branch
if current_branch != "main":
run("git checkout %s"%(current_branch))
run("patch -p1 < %s" % (diff))
return target
def main():
argparser = argparse.ArgumentParser(description='Tools to test the performance. Example: ./bench.py -b Decoder_Generic_Sonic -c')
argparser.add_argument('-b', '--bench', dest='filter', required=False,
help='Specify the filter for golang benchmark')
argparser.add_argument('-c', '--compare', dest='compare', action='store_true', required=False,
help='Compare with the main benchmarking')
argparser.add_argument('-t', '--times', dest='times', required=False,
help='benchmark the times')
args = argparser.parse_args()
if args.filter:
gbench_args = "-bench=%s"%(args.filter)
else:
gbench_args = "-bench=."
if args.times:
gbench_args += " -benchtime=%s"%(args.times)
if args.compare:
target = compare(gbench_args)
else:
target = None
if not target:
(fd, target) = tempfile.mkstemp(".target.txt")
run("%s %s ./... 2>&1 | tee %s" %(gbench_prefix, gbench_args, target))
if __name__ == "__main__":
main()