premiere-libtorrent/tools/run_benchmark.py

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#!/usr/bin/env python
# vim: tabstop=8 expandtab shiftwidth=4 softtabstop=4
import os
import time
import shutil
import subprocess
import sys
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import multiprocessing
cache_size = 300 # in MiB
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toolset = ''
if len(sys.argv) > 1:
toolset = sys.argv[1]
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ret = os.system('cd ../examples && b2 -j %d profile %s stage_client_test'
% (multiprocessing.cpu_count(), toolset))
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if ret != 0:
print('ERROR: build failed: %d' % ret)
sys.exit(1)
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ret = os.system('cd ../examples && b2 -j %d release %s stage_connection_tester'
% (multiprocessing.cpu_count(), toolset))
if ret != 0:
print('ERROR: build failed: %d' % ret)
sys.exit(1)
try:
os.remove('.ses_state')
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except Exception:
pass
try:
shutil.rmtree('.resume')
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except Exception:
pass
try:
shutil.rmtree('cpu_benchmark')
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except Exception:
pass
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if not os.path.exists('cpu_benchmark.torrent'):
ret = os.system('../examples/connection_tester gen-torrent -s 10000 -n 15 -t cpu_benchmark.torrent')
if ret != 0:
print('ERROR: connection_tester failed: %d' % ret)
sys.exit(1)
try:
shutil.rmtree('t')
except Exception:
pass
def run_test(name, test_cmd, client_arg, num_peers):
output_dir = 'logs_%s' % name
try:
shutil.rmtree(output_dir)
except Exception:
pass
try:
os.mkdir(output_dir)
except Exception:
pass
port = (int(time.time()) % 50000) + 2000
try:
shutil.rmtree('session_stats')
except Exception:
pass
try:
shutil.rmtree('session_stats_report')
except Exception:
pass
start = time.time()
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client_cmd = '../examples/client_test -k --listen_interfaces=127.0.0.1:%d cpu_benchmark.torrent ' \
'--disable_hash_checks=1 --enable_dht=0 --enable_lsd=0 --enable_upnp=0 --enable_natpmp=0 ' \
'-e 120 %s -O --allow_multiple_connections_per_ip=1 --connections_limit=%d -T %d ' \
'--cache_size=%d -f %s/events.log --alert_mask=8747' \
% (port, client_arg, num_peers * 2, num_peers * 2, cache_size * 16, output_dir)
test_cmd = '../examples/connection_tester %s -c %d -d 127.0.0.1 -p %d -t cpu_benchmark.torrent' % (
test_cmd, num_peers, port)
client_out = open('%s/client.out' % output_dir, 'w+')
test_out = open('%s/test.out' % output_dir, 'w+')
print(client_cmd)
c = subprocess.Popen(client_cmd.split(' '), stdout=client_out, stderr=client_out, stdin=subprocess.PIPE)
time.sleep(2)
print(test_cmd)
t = subprocess.Popen(test_cmd.split(' '), stdout=test_out, stderr=test_out)
t.wait()
end = time.time()
try:
c.communicate('q')
except Exception:
pass
c.wait()
client_out.close()
test_out.close()
print('runtime %d seconds' % (end - start))
print('analyzing proile...')
os.system('gprof ../examples/client_test >%s/gprof.out' % output_dir)
print('generating profile graph...')
try:
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os.system('gprof2dot --strip <%s/gprof.out | dot -Tpng -o %s/cpu_profile.png' % (output_dir, output_dir))
except Exception:
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print('please install gprof2dot and dot:\nsudo pip install gprof2dot\nsudo apt install graphviz')
os.system('python parse_session_stats.py %s/events.log' % output_dir)
try:
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shutil.move('session_stats_report', '%s/session_stats_report' % output_dir)
except Exception:
pass
run_test('download', 'upload', '', 50)
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run_test('upload', 'download', '-G', 20)