/usr/lib/python2.7/dist-packages/ZEO/tests/speed.py is in python-zodb 1:3.10.7-1.
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#
# Copyright (c) 2001, 2002 Zope Foundation and Contributors.
# All Rights Reserved.
#
# This software is subject to the provisions of the Zope Public License,
# Version 2.1 (ZPL). A copy of the ZPL should accompany this distribution.
# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
# FOR A PARTICULAR PURPOSE
#
##############################################################################
usage="""Test speed of a ZODB storage
Options:
-d file The data file to use as input.
The default is this script.
-n n The number of repititions
-s module A module that defines a 'Storage'
attribute, which is an open storage.
If not specified, a FileStorage will ne
used.
-z Test compressing data
-D Run in debug mode
-L Test loads as well as stores by minimizing
the cache after eachrun
-M Output means only
-C Run with a persistent client cache
-U Run ZEO using a Unix domain socket
-t n Number of concurrent threads to run.
"""
import asyncore
import sys, os, getopt, time
##sys.path.insert(0, os.getcwd())
import persistent
import transaction
import ZODB
from ZODB.POSException import ConflictError
from ZEO.tests import forker
class P(persistent.Persistent):
pass
fs_name = "zeo-speed.fs"
class ZEOExit(asyncore.file_dispatcher):
"""Used to exit ZEO.StorageServer when run is done"""
def writable(self):
return 0
def readable(self):
return 1
def handle_read(self):
buf = self.recv(4)
assert buf == "done"
self.delete_fs()
os._exit(0)
def handle_close(self):
print "Parent process exited unexpectedly"
self.delete_fs()
os._exit(0)
def delete_fs(self):
os.unlink(fs_name)
os.unlink(fs_name + ".lock")
os.unlink(fs_name + ".tmp")
def work(db, results, nrep, compress, data, detailed, minimize, threadno=None):
for j in range(nrep):
for r in 1, 10, 100, 1000:
t = time.time()
conflicts = 0
jar = db.open()
while 1:
try:
transaction.begin()
rt = jar.root()
key = 's%s' % r
if rt.has_key(key):
p = rt[key]
else:
rt[key] = p =P()
for i in range(r):
v = getattr(p, str(i), P())
if compress is not None:
v.d = compress(data)
else:
v.d = data
setattr(p, str(i), v)
transaction.commit()
except ConflictError:
conflicts = conflicts + 1
else:
break
jar.close()
t = time.time() - t
if detailed:
if threadno is None:
print "%s\t%s\t%.4f\t%d" % (j, r, t, conflicts)
else:
print "%s\t%s\t%.4f\t%d\t%d" % (j, r, t, conflicts,
threadno)
results[r].append((t, conflicts))
rt=d=p=v=None # release all references
if minimize:
time.sleep(3)
jar.cacheMinimize()
def main(args):
opts, args = getopt.getopt(args, 'zd:n:Ds:LMt:U')
s = None
compress = None
data=sys.argv[0]
nrep=5
minimize=0
detailed=1
cache = None
domain = 'AF_INET'
threads = 1
for o, v in opts:
if o=='-n': nrep = int(v)
elif o=='-d': data = v
elif o=='-s': s = v
elif o=='-z':
import zlib
compress = zlib.compress
elif o=='-L':
minimize=1
elif o=='-M':
detailed=0
elif o=='-D':
global debug
os.environ['STUPID_LOG_FILE']=''
os.environ['STUPID_LOG_SEVERITY']='-999'
debug = 1
elif o == '-C':
cache = 'speed'
elif o == '-U':
domain = 'AF_UNIX'
elif o == '-t':
threads = int(v)
zeo_pipe = None
if s:
s = __import__(s, globals(), globals(), ('__doc__',))
s = s.Storage
server = None
else:
s, server, pid = forker.start_zeo("FileStorage",
(fs_name, 1), domain=domain)
data=open(data).read()
db=ZODB.DB(s,
# disable cache deactivation
cache_size=4000,
cache_deactivate_after=6000,)
print "Beginning work..."
results={1:[], 10:[], 100:[], 1000:[]}
if threads > 1:
import threading
l = []
for i in range(threads):
t = threading.Thread(target=work,
args=(db, results, nrep, compress, data,
detailed, minimize, i))
l.append(t)
for t in l:
t.start()
for t in l:
t.join()
else:
work(db, results, nrep, compress, data, detailed, minimize)
if server is not None:
server.close()
os.waitpid(pid, 0)
if detailed:
print '-'*24
print "num\tmean\tmin\tmax"
for r in 1, 10, 100, 1000:
times = []
for time, conf in results[r]:
times.append(time)
t = mean(times)
print "%d\t%.4f\t%.4f\t%.4f" % (r, t, min(times), max(times))
def mean(l):
tot = 0
for v in l:
tot = tot + v
return tot / len(l)
##def compress(s):
## c = zlib.compressobj()
## o = c.compress(s)
## return o + c.flush()
if __name__=='__main__':
main(sys.argv[1:])
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