forked from premiere/premiere-libtorrent
251 lines
8.5 KiB
Python
251 lines
8.5 KiB
Python
import sys
|
|
import os
|
|
import resource
|
|
import shutil
|
|
import shlex
|
|
import time
|
|
import subprocess
|
|
import random
|
|
|
|
# this is a disk I/O benchmark script. It runs menchmarks
|
|
# over different filesystems, different cache sizes and
|
|
# different number of peers (can be used to find a reasonable
|
|
# range for unchoke slots).
|
|
|
|
# it also measures performance improvements of re-ordering
|
|
# read requests based on physical location and OS hints
|
|
# like posix_fadvice(FADV_WILLNEED). It can also be used
|
|
# for the AIO branch to measure improvements over the
|
|
# classic thread based disk I/O
|
|
|
|
# to set up the test, build the example directory in release
|
|
# with statistics=on and copy fragmentation_test, client_test
|
|
# and connection_tester to a directory called 'stage_aio'
|
|
# and 'stage_syncio' (or make a symbolic link to the bjam
|
|
# output directory).
|
|
# make sure gnuplot is installed.
|
|
|
|
# the following lists define the space tests will be run in
|
|
|
|
# variables to test. All these are run on the first
|
|
# entry in the filesystem list.
|
|
cache_sizes = [0, 32768, 393216]
|
|
peers = [200, 1000, 2000]
|
|
builds = ['syncio']
|
|
|
|
# the drives are assumed to be mounted under ./<name>
|
|
# or have symbolic links to them.
|
|
#filesystem = ['ext4', 'ext3', 'reiser', 'xfs']
|
|
filesystem = ['ext3']
|
|
|
|
# the number of peers for the filesystem test. The
|
|
# idea is to stress test the filesystem by using a lot
|
|
# of peers, since each peer essentially is a separate
|
|
# read location on the platter
|
|
filesystem_peers = 200
|
|
|
|
# the amount of cache for the filesystem test
|
|
# 6 GiB of cache
|
|
filesystem_cache = 393216
|
|
|
|
# the number of seconds to run each test. It's important that
|
|
# this is shorter than what it takes to finish downloading
|
|
# the test torrent, since then the average rate will not
|
|
# be representative of the peak anymore
|
|
# this has to be long enough to download a full copy
|
|
# of the test torrent
|
|
test_duration = 1000
|
|
|
|
|
|
|
|
# make sure the environment is properly set up
|
|
if resource.getrlimit(resource.RLIMIT_NOFILE)[0] < 4000:
|
|
print 'please set ulimit -n to at least 4000'
|
|
sys.exit(1)
|
|
|
|
def build_stage_dirs():
|
|
ret = []
|
|
for i in builds:
|
|
ret.append('stage_%s' % i)
|
|
return ret
|
|
|
|
# make sure we have all the binaries available
|
|
binaries = ['client_test', 'connection_tester', 'fragmentation_test']
|
|
for b in build_stage_dirs():
|
|
for i in binaries:
|
|
p = os.path.join(b, i)
|
|
if not os.path.exists(p):
|
|
print 'make sure "%s" is available in ./%s' % (i, b)
|
|
sys.exit(1)
|
|
|
|
for i in filesystem:
|
|
if not os.path.exists(i):
|
|
print ('the path "%s" does not exist. This is directory/mountpoint is ' +
|
|
'used as the download directory and is the filesystem that will be benchmarked ' +
|
|
'and need to exist.') % i
|
|
sys.exit(1)
|
|
|
|
# make sure we have a test torrent
|
|
if not os.path.exists('test.torrent'):
|
|
print 'generating test torrent'
|
|
os.system('./stage_%s/connection_tester gen-torrent test.torrent' % builds[0])
|
|
|
|
# use a new port for each test to make sure they keep working
|
|
# this port is incremented for each test run
|
|
port = 10000 + random.randint(0, 5000)
|
|
|
|
def build_commandline(config, port):
|
|
num_peers = config['num-peers']
|
|
no_disk_reorder = '';
|
|
if config['allow-disk-reorder'] == False:
|
|
no_disk_reorder = '-O'
|
|
no_read_ahead = ''
|
|
if config['read-ahead'] == False:
|
|
no_read_ahead = '-j'
|
|
allocation_mode = config['allocation-mode']
|
|
|
|
#TODO: take config['coalesce'] into account
|
|
|
|
global test_duration
|
|
|
|
return './stage_%s/client_test -k -z -N -h -H -M -B %d -l %d -S %d -T %d -c %d -C %d -s "%s" %s %s -q %d -p %d -f session_stats/alerts_log.txt -a %s test.torrent' \
|
|
% (config['build'], test_duration, num_peers, num_peers, num_peers, num_peers, config['cache-size'], config['save-path'] \
|
|
, no_disk_reorder, no_read_ahead, test_duration, port, config['allocation-mode'])
|
|
|
|
def delete_files(files):
|
|
for i in files:
|
|
try: os.remove(i)
|
|
except:
|
|
try: shutil.rmtree(i)
|
|
except:
|
|
try:
|
|
if os.exists(i): print 'failed to delete %s' % i
|
|
except: pass
|
|
|
|
def build_test_config(fs, num_peers, cache_size, readahead=True, reorder=True, preallocate=False, coalesce=True, test='upload', build='aio'):
|
|
config = {'test': test, 'save-path': os.path.join('./', fs), 'num-peers': num_peers, 'allow-disk-reorder': reorder, 'cache-size': cache_size, 'read-ahead': readahead}
|
|
if preallocate: config['allocation-mode'] = 'allocate'
|
|
else: config['allocation-mode'] = 'sparse'
|
|
if coalesce: config['coalesce'] = True
|
|
else: config['coalesce'] = False
|
|
config['build'] = build
|
|
return config
|
|
|
|
def build_target_folder(config):
|
|
reorder = 'reorder'
|
|
if config['allow-disk-reorder'] == False: reorder = 'no-reorder'
|
|
readahead = 'readahead'
|
|
if config['read-ahead'] == False: readahead = 'no-readahead'
|
|
coalesce = 'coalesce'
|
|
if config['coalesce'] == False: coalesce = 'no-coalesce'
|
|
test = 'seed'
|
|
if config['test'] == 'upload': test = 'download'
|
|
|
|
return 'results_%s_%s_%d_%d_%s_%s_%s_%s_%s' % (config['build'], test, config['num-peers'], config['cache-size'], os.path.split(config['save-path'])[1], reorder, readahead, config['allocation-mode'], coalesce)
|
|
|
|
def run_test(config):
|
|
|
|
target_folder = build_target_folder(config)
|
|
if os.path.exists(target_folder):
|
|
print 'results already exists, skipping test (%s)' % target_folder
|
|
return
|
|
|
|
# make sure any previous test file is removed
|
|
# don't clean up unless we're running a download-test, so that we leave the test file
|
|
# complete for a seed test.
|
|
if config['test'] == 'upload':
|
|
print 'deleting files'
|
|
delete_files([os.path.join(config['save-path'], 'stress_test_file'), '.ses_state', os.path.join(config['save-path'], '.resume'), '.dht_state', 'session_stats'])
|
|
|
|
try: os.mkdir('session_stats')
|
|
except: pass
|
|
|
|
# save off the command line for reference
|
|
global port
|
|
cmdline = build_commandline(config, port)
|
|
f = open('session_stats/cmdline.txt', 'w+')
|
|
f.write(cmdline)
|
|
f.close()
|
|
|
|
f = open('session_stats/config.txt', 'w+')
|
|
print >>f, config
|
|
f.close()
|
|
|
|
print '\n\n*********************************'
|
|
print '* RUNNING TEST *'
|
|
print '*********************************\n\n'
|
|
client_output = open('session_stats/client.output', 'w+')
|
|
print 'launching: %s' % cmdline
|
|
client = subprocess.Popen(shlex.split(cmdline), stdout=client_output, stdin=subprocess.PIPE)
|
|
# enable disk stats printing
|
|
print >>client.stdin, 'x',
|
|
# when allocating storage, we have to wait for it to complete before we can connect
|
|
time.sleep(1)
|
|
cmdline = './stage_%s/connection_tester %s %d 127.0.0.1 %d test.torrent' % (config['build'], config['test'], config['num-peers'], port)
|
|
print 'launching: %s' % cmdline
|
|
tester_output = open('session_stats/tester.output', 'w+')
|
|
tester = subprocess.Popen(shlex.split(cmdline), stdout=tester_output)
|
|
|
|
tester.wait()
|
|
client.wait()
|
|
tester_output.close()
|
|
client_output.close()
|
|
if tester.returncode != 0: sys.exit(tester.returncode)
|
|
if client.returncode != 0: sys.exit(client.returncode)
|
|
|
|
# run fragmentation test
|
|
print 'analyzing fragmentation'
|
|
os.system('./stage_%s/fragmentation_test test.torrent %s' % (config['build'], config['save-path']))
|
|
shutil.copy('fragmentation.log', 'session_stats/')
|
|
shutil.copy('fragmentation.png', 'session_stats/')
|
|
shutil.copy('fragmentation.gnuplot', 'session_stats/')
|
|
|
|
os.chdir('session_stats')
|
|
|
|
# parse session stats
|
|
print 'parsing session log'
|
|
os.system('python ../../parse_session_stats.py *.0000.log')
|
|
|
|
os.chdir('..')
|
|
|
|
# move the results into its final place
|
|
print 'saving results'
|
|
os.rename('session_stats', build_target_folder(config))
|
|
|
|
# clean up
|
|
# don't clean up unless we ran a seed-test, so that we leave the test file
|
|
# complete for the seed test. i.e. we don't clean up if we ran a download test
|
|
# if config['test'] == 'download':
|
|
# print 'cleaning up'
|
|
# delete_files([os.path.join(config['save-path'], 'stress_test_file'), '.ses_state', os.path.join(config['save-path'], '.resume'), '.dht_state'])
|
|
|
|
port += 1
|
|
|
|
#config = build_test_config('ext4', filesystem_peers, filesystem_cache, True, True, False)
|
|
#run_test(config)
|
|
#sys.exit(0)
|
|
|
|
for fs in filesystem:
|
|
# for preallocate in [True, False]:
|
|
rdahead = True
|
|
reorder = True
|
|
preallocate = False
|
|
for b in builds:
|
|
for test in ['upload', 'download']:
|
|
config = build_test_config(fs, filesystem_peers, filesystem_cache, rdahead, reorder, preallocate, test=test, build=b)
|
|
run_test(config)
|
|
|
|
for c in cache_sizes:
|
|
for p in peers:
|
|
# for rdahead in [True, False]:
|
|
rdahead = False
|
|
# for reorder in [True, False]:
|
|
reorder = True
|
|
# for preallocate in [True, False]:
|
|
preallocate = False
|
|
for b in builds:
|
|
for test in ['upload', 'download']:
|
|
config = build_test_config(filesystem[0], p, c, rdahead, reorder, preallocate, test=test, build=b)
|
|
run_test(config)
|
|
|