Some tests from ZEO2

src/ZEO/tests/multi.py

+"""A multi-client test of the ZEO storage server"""
+
+import ZODB, ZODB.DB, ZODB.FileStorage, ZODB.POSException
+import Persistence
+import PersistentMapping
+from ZEO.tests import forker
+
+import asyncore
+import os
+import tempfile
+import time
+import types
+
+VERBOSE = 1
+CLIENTS = 4
+RECORDS_PER_CLIENT = 100
+CONFLICT_DELAY = 0.1
+CONNECT_DELAY = 0.1
+CLIENT_CACHE = '' # use temporary cache
+
+class Record(Persistence.Persistent):
+    def __init__(self, client=None, value=None):
+        self.client = client
+        self.value = None
+        self.next = None
+
+    def set_next(self, next):
+        self.next = next
+
+class Stats(Persistence.Persistent):
+    def __init__(self):
+        self.begin = time.time()
+        self.end = None
+
+    def done(self):
+        self.end = time.time()
+
+def init_storage():
+    path = tempfile.mktemp()
+    if VERBOSE:
+        print "FileStorage path:", path
+    fs = ZODB.FileStorage.FileStorage(path)
+
+    db = ZODB.DB(fs)
+    root = db.open().root()
+    root["multi"] = PersistentMapping.PersistentMapping()
+    get_transaction().commit()
+
+    return fs
+
+def start_server(addr):
+    storage = init_storage()
+    pid, exit = forker.start_zeo_server(storage, addr)
+    return pid, exit
+
+def start_client(addr):
+    pid = os.fork()
+    if pid == 0:
+        import ZEO.ClientStorage
+        if VERBOSE:
+            print "Client process started:", os.getpid()
+        cli = ZEO.ClientStorage.ClientStorage(addr, client=CLIENT_CACHE)
+        run(cli)
+        cli.close()
+        os._exit(0)
+    else:
+        return pid
+
+def run(storage):
+    if hasattr(storage, 'is_connected'):
+        while not storage.is_connected():
+            time.sleep(CONNECT_DELAY)
+    pid = os.getpid()
+    print "Client process connected:", pid, storage
+    db = ZODB.DB(storage)
+    root = db.open().root()
+    while 1:
+        try:
+            s = root[pid] = Stats()
+            get_transaction().commit()
+        except ZODB.POSException.ConflictError:
+            get_transaction().abort()
+            time.sleep(CONFLICT_DELAY)
+        else:
+            break
+
+    dict = root["multi"]
+    prev = None
+    i = 0
+    while i < RECORDS_PER_CLIENT:
+        try:
+            size = len(dict)
+            r = dict[size] = Record(pid, size)
+            if prev:
+                prev.set_next(r)
+            get_transaction().commit()
+        except ZODB.POSException.ConflictError, err:
+            get_transaction().abort()
+            time.sleep(CONFLICT_DELAY)
+        else:
+            i = i + 1
+            if VERBOSE and (i < 5 or i % 10 == 0):
+                print "Client %s: %s of %s" % (pid, i, RECORDS_PER_CLIENT)
+    s.done()
+    get_transaction().commit()
+
+    print "Client completed:", pid
+
+def shutdown_server(addr):
+    import ZEO.ClientStorage
+    # XXX this doesn't work!
+    cli = ZEO.ClientStorage.ClientStorage(addr)
+    cli._server.rpc.callAsync('shutdown')
+
+def main():
+    if VERBOSE:
+        print "Main process:", os.getpid()
+    addr = tempfile.mktemp()
+    t0 = time.time()
+    server_pid, server = start_server(addr)
+    t1 = time.time()
+    pids = [start_client(addr) for i in range(CLIENTS)]
+    for pid in pids:
+        assert type(pid) == types.IntType, "invalid pid type: %s (%s)" % \
+               (repr(pid), type(pid))
+        try:
+            if VERBOSE:
+                print "waitpid(%s)" % repr(pid)
+            os.waitpid(pid, 0)
+        except os.error, err:
+            print "waitpid(%s) failed: %s" % (repr(pid), err)
+    t2 = time.time()
+    server.close()
+    os.waitpid(server_pid, 0)
+
+    # XXX Should check that the results are consistent!
+
+    print "Total time:", t2 - t0
+    print "Server start time", t1 - t0
+    print "Client time:", t2 - t1
+
+if __name__ == "__main__":
+    main()

src/ZEO/tests/speed.py

+##############################################################################
+# 
+# Zope Public License (ZPL) Version 1.0
+# -------------------------------------
+# 
+# Copyright (c) Digital Creations.  All rights reserved.
+# 
+# This license has been certified as Open Source(tm).
+# 
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+# 
+# 1. Redistributions in source code must retain the above copyright
+#    notice, this list of conditions, and the following disclaimer.
+# 
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions, and the following disclaimer in
+#    the documentation and/or other materials provided with the
+#    distribution.
+# 
+# 3. Digital Creations requests that attribution be given to Zope
+#    in any manner possible. Zope includes a "Powered by Zope"
+#    button that is installed by default. While it is not a license
+#    violation to remove this button, it is requested that the
+#    attribution remain. A significant investment has been put
+#    into Zope, and this effort will continue if the Zope community
+#    continues to grow. This is one way to assure that growth.
+# 
+# 4. All advertising materials and documentation mentioning
+#    features derived from or use of this software must display
+#    the following acknowledgement:
+# 
+#      "This product includes software developed by Digital Creations
+#      for use in the Z Object Publishing Environment
+#      (http://www.zope.org/)."
+# 
+#    In the event that the product being advertised includes an
+#    intact Zope distribution (with copyright and license included)
+#    then this clause is waived.
+# 
+# 5. Names associated with Zope or Digital Creations must not be used to
+#    endorse or promote products derived from this software without
+#    prior written permission from Digital Creations.
+# 
+# 6. Modified redistributions of any form whatsoever must retain
+#    the following acknowledgment:
+# 
+#      "This product includes software developed by Digital Creations
+#      for use in the Z Object Publishing Environment
+#      (http://www.zope.org/)."
+# 
+#    Intact (re-)distributions of any official Zope release do not
+#    require an external acknowledgement.
+# 
+# 7. Modifications are encouraged but must be packaged separately as
+#    patches to official Zope releases.  Distributions that do not
+#    clearly separate the patches from the original work must be clearly
+#    labeled as unofficial distributions.  Modifications which do not
+#    carry the name Zope may be packaged in any form, as long as they
+#    conform to all of the clauses above.
+# 
+# 
+# Disclaimer
+# 
+#   THIS SOFTWARE IS PROVIDED BY DIGITAL CREATIONS ``AS IS'' AND ANY
+#   EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+#   IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+#   PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL DIGITAL CREATIONS OR ITS
+#   CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+#   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+#   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+#   USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+#   ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+#   OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+#   OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+#   SUCH DAMAGE.
+# 
+# 
+# This software consists of contributions made by Digital Creations and
+# many individuals on behalf of Digital Creations.  Specific
+# attributions are listed in the accompanying credits file.
+# 
+##############################################################################
+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
+"""
+
+import asyncore  
+import sys, os, getopt, string, time
+##sys.path.insert(0, os.getcwd())
+
+import ZODB, ZODB.FileStorage
+import Persistence
+import ZEO.ClientStorage, ZEO.StorageServer
+
+class P(Persistence.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 main(args):
+    opts, args = getopt.getopt(args, 'zd:n:Ds:LM')
+    s = None
+    compress = None
+    data=sys.argv[0]
+    nrep=5
+    minimize=0
+    detailed=1
+    cache = None
+    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'
+
+    zeo_pipe = None
+    if s:
+        s = __import__(s, globals(), globals(), ('__doc__',))
+        s = s.Storage
+    else:
+        rd, wr = os.pipe()
+        pid = os.fork()
+        if pid:
+            # in the child, run the storage server
+            os.close(wr)
+            import asyncore
+            ZEOExit(rd)
+            fs = ZODB.FileStorage.FileStorage(fs_name, create=1)
+            serv = ZEO.StorageServer.StorageServer(('', 1975), {'1':fs})
+            asyncore.loop()
+        else:
+            os.close(rd)
+            zeo_pipe = wr
+            s = ZEO.ClientStorage.ClientStorage(('', 1975), debug=0,
+                                                client=cache)
+            if hasattr(s, 'is_connected'):
+                while not s.is_connected():
+                    time.sleep(0.1)
+            else:
+                time.sleep(1.0)
+
+    data=open(data).read()
+    db=ZODB.DB(s,
+               # disable cache deactivation
+               cache_size=4000,
+               cache_deactivate_after=6000,)
+    db.open().root()
+
+    results={1:0, 10:0, 100:0, 1000:0}
+    for j in range(nrep):
+        for r in 1, 10, 100, 1000:
+            t = time.time()
+            
+            jar = db.open()
+            get_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)
+            get_transaction().commit()
+            jar.close()
+            
+            t = time.time() - t
+            if detailed:
+                print "%s\t%s\t%.4f" % (j, r, t)
+            results[r] = results[r] + t
+            rt=d=p=v=None # release all references
+            if minimize:
+                time.sleep(3)
+                jar.cacheMinimize(3)
+
+    if zeo_pipe:
+        os.write(zeo_pipe, "done")
+
+    if detailed:
+        print '-'*24
+    for r in 1, 10, 100, 1000:
+        t=results[r]/nrep
+        print "mean:\t%s\t%.4f\t%.4f (s/o)" % (r, t, t/r)
+    
+##def compress(s):
+##    c = zlib.compressobj()
+##    o = c.compress(s)
+##    return o + c.flush()    
+
+if __name__=='__main__':
+    main(sys.argv[1:])