mirror of https://github.com/grpc/grpc.git
The C based gRPC (C++, Python, Ruby, Objective-C, PHP, C#)
https://grpc.io/
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259 lines
8.4 KiB
259 lines
8.4 KiB
#!/usr/bin/env python2.7 |
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# Copyright 2017, Google Inc. |
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# All rights reserved. |
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# |
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# Redistribution and use in source and binary forms, with or without |
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# modification, are permitted provided that the following conditions are |
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# met: |
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# |
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# * Redistributions of source code must retain the above copyright |
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# notice, this list of conditions and the following disclaimer. |
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# * Redistributions in binary form must reproduce the above |
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# copyright notice, this list of conditions and the following disclaimer |
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# in the documentation and/or other materials provided with the |
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# distribution. |
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# * Neither the name of Google Inc. nor the names of its |
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# contributors may be used to endorse or promote products derived from |
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# this software without specific prior written permission. |
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# |
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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import sys |
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import json |
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import bm_json |
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import tabulate |
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import argparse |
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from scipy import stats |
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import subprocess |
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import multiprocessing |
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import collections |
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import pipes |
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import os |
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sys.path.append(os.path.join(os.path.dirname(sys.argv[0]), '..', '..', 'run_tests', 'python_utils')) |
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import comment_on_pr |
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import jobset |
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import itertools |
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import speedup |
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import random |
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import shutil |
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import errno |
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_INTERESTING = ( |
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'cpu_time', |
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'real_time', |
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'locks_per_iteration', |
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'allocs_per_iteration', |
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'writes_per_iteration', |
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'atm_cas_per_iteration', |
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'atm_add_per_iteration', |
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'cli_transport_stalls_per_iteration', |
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'cli_stream_stalls_per_iteration', |
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'svr_transport_stalls_per_iteration', |
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'svr_stream_stalls_per_iteration' |
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'nows_per_iteration', |
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) |
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def changed_ratio(n, o): |
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if float(o) <= .0001: o = 0 |
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if float(n) <= .0001: n = 0 |
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if o == 0 and n == 0: return 0 |
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if o == 0: return 100 |
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return (float(n)-float(o))/float(o) |
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def median(ary): |
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ary = sorted(ary) |
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n = len(ary) |
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if n%2 == 0: |
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return (ary[n/2] + ary[n/2+1]) / 2.0 |
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else: |
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return ary[n/2] |
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def min_change(pct): |
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return lambda n, o: abs(changed_ratio(n,o)) > pct/100.0 |
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_AVAILABLE_BENCHMARK_TESTS = ['bm_fullstack_unary_ping_pong', |
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'bm_fullstack_streaming_ping_pong', |
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'bm_fullstack_streaming_pump', |
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'bm_closure', |
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'bm_cq', |
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'bm_call_create', |
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'bm_error', |
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'bm_chttp2_hpack', |
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'bm_chttp2_transport', |
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'bm_pollset', |
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'bm_metadata', |
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'bm_fullstack_trickle'] |
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argp = argparse.ArgumentParser(description='Perform diff on microbenchmarks') |
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argp.add_argument('-t', '--track', |
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choices=sorted(_INTERESTING), |
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nargs='+', |
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default=sorted(_INTERESTING), |
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help='Which metrics to track') |
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argp.add_argument('-b', '--benchmarks', nargs='+', choices=_AVAILABLE_BENCHMARK_TESTS, default=['bm_cq']) |
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argp.add_argument('-d', '--diff_base', type=str) |
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argp.add_argument('-r', '--repetitions', type=int, default=1) |
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argp.add_argument('-l', '--loops', type=int, default=20) |
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argp.add_argument('-j', '--jobs', type=int, default=multiprocessing.cpu_count()) |
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args = argp.parse_args() |
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assert args.diff_base |
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def avg(lst): |
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sum = 0.0 |
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n = 0.0 |
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for el in lst: |
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sum += el |
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n += 1 |
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return sum / n |
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def make_cmd(cfg): |
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return ['make'] + args.benchmarks + [ |
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'CONFIG=%s' % cfg, '-j', '%d' % args.jobs] |
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def build(dest): |
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shutil.rmtree('bm_diff_%s' % dest, ignore_errors=True) |
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subprocess.check_call(['git', 'submodule', 'update']) |
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try: |
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subprocess.check_call(make_cmd('opt')) |
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subprocess.check_call(make_cmd('counters')) |
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except subprocess.CalledProcessError, e: |
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subprocess.check_call(['make', 'clean']) |
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subprocess.check_call(make_cmd('opt')) |
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subprocess.check_call(make_cmd('counters')) |
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os.rename('bins', 'bm_diff_%s' % dest) |
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def collect1(bm, cfg, ver, idx): |
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cmd = ['bm_diff_%s/%s/%s' % (ver, cfg, bm), |
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'--benchmark_out=%s.%s.%s.%d.json' % (bm, cfg, ver, idx), |
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'--benchmark_out_format=json', |
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'--benchmark_repetitions=%d' % (args.repetitions) |
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] |
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return jobset.JobSpec(cmd, shortname='%s %s %s %d/%d' % (bm, cfg, ver, idx+1, args.loops), |
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verbose_success=True, timeout_seconds=None) |
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build('new') |
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where_am_i = subprocess.check_output(['git', 'rev-parse', '--abbrev-ref', 'HEAD']).strip() |
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subprocess.check_call(['git', 'checkout', args.diff_base]) |
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try: |
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build('old') |
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finally: |
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subprocess.check_call(['git', 'checkout', where_am_i]) |
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subprocess.check_call(['git', 'submodule', 'update']) |
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jobs = [] |
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for loop in range(0, args.loops): |
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jobs.extend(x for x in itertools.chain( |
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(collect1(bm, 'opt', 'new', loop) for bm in args.benchmarks), |
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(collect1(bm, 'counters', 'new', loop) for bm in args.benchmarks), |
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(collect1(bm, 'opt', 'old', loop) for bm in args.benchmarks), |
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(collect1(bm, 'counters', 'old', loop) for bm in args.benchmarks), |
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)) |
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random.shuffle(jobs, random.SystemRandom().random) |
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jobset.run(jobs, maxjobs=args.jobs) |
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class Benchmark: |
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def __init__(self): |
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self.samples = { |
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True: collections.defaultdict(list), |
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False: collections.defaultdict(list) |
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} |
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self.final = {} |
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def add_sample(self, data, new): |
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for f in args.track: |
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if f in data: |
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self.samples[new][f].append(float(data[f])) |
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def process(self): |
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for f in sorted(args.track): |
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new = self.samples[True][f] |
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old = self.samples[False][f] |
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if not new or not old: continue |
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mdn_diff = abs(median(new) - median(old)) |
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print '%s: new=%r old=%r mdn_diff=%r' % (f, new, old, mdn_diff) |
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s = speedup.speedup(new, old) |
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if abs(s) > 3 and mdn_diff > 0.5: |
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self.final[f] = '%+d%%' % s |
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return self.final.keys() |
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def skip(self): |
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return not self.final |
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def row(self, flds): |
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return [self.final[f] if f in self.final else '' for f in flds] |
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def eintr_be_gone(fn): |
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"""Run fn until it doesn't stop because of EINTR""" |
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while True: |
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try: |
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return fn() |
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except IOError, e: |
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if e.errno != errno.EINTR: |
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raise |
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def read_json(filename): |
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try: |
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with open(filename) as f: return json.loads(f.read()) |
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except ValueError, e: |
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return None |
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def finalize(): |
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benchmarks = collections.defaultdict(Benchmark) |
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for bm in args.benchmarks: |
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for loop in range(0, args.loops): |
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js_new_ctr = read_json('%s.counters.new.%d.json' % (bm, loop)) |
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js_new_opt = read_json('%s.opt.new.%d.json' % (bm, loop)) |
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js_old_ctr = read_json('%s.counters.old.%d.json' % (bm, loop)) |
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js_old_opt = read_json('%s.opt.old.%d.json' % (bm, loop)) |
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if js_new_ctr: |
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for row in bm_json.expand_json(js_new_ctr, js_new_opt): |
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print row |
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name = row['cpp_name'] |
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if name.endswith('_mean') or name.endswith('_stddev'): continue |
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benchmarks[name].add_sample(row, True) |
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if js_old_ctr: |
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for row in bm_json.expand_json(js_old_ctr, js_old_opt): |
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print row |
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name = row['cpp_name'] |
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if name.endswith('_mean') or name.endswith('_stddev'): continue |
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benchmarks[name].add_sample(row, False) |
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really_interesting = set() |
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for name, bm in benchmarks.items(): |
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print name |
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really_interesting.update(bm.process()) |
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fields = [f for f in args.track if f in really_interesting] |
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headers = ['Benchmark'] + fields |
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rows = [] |
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for name in sorted(benchmarks.keys()): |
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if benchmarks[name].skip(): continue |
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rows.append([name] + benchmarks[name].row(fields)) |
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if rows: |
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text = 'Performance differences noted:\n' + tabulate.tabulate(rows, headers=headers, floatfmt='+.2f') |
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else: |
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text = 'No significant performance differences' |
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print text |
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comment_on_pr.comment_on_pr('```\n%s\n```' % text) |
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eintr_be_gone(finalize)
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