Add Tornadis benchmark script

setup.py

@@ -48,5 +48,9 @@
         'Topic :: Utilities',
         'Topic :: System :: Distributed Computing',
         'Topic :: Software Development',
-    ]
+    ],
+    entry_points="""
+    [console_scripts]
+    tornadis-benchmark = tornadis.benchmark:main
+    """,
 )

tests/.coveragerc

@@ -0,0 +1,3 @@
+[run]
+
+omit = tornadis/benchmark.py

tornadis/benchmark.py

@@ -0,0 +1,104 @@
+import argparse
+import datetime
+import itertools
+import logging
+import math
+import sys
+import tornadis
+import tornado
+
+
+logging.basicConfig(level=logging.CRITICAL)
+
+
+def get_parameters():
+    parser = argparse.ArgumentParser(description='Tornadis benchmarking utility', add_help=False)
+    parser.add_argument('--help', action='help')
+    parser.add_argument('-h', '--hostname', help="Server hostname (default 127.0.0.1)",
+                        default="127.0.0.1")
+    parser.add_argument('-p', '--port', help="Server port (default 6379)", default=6379)
+    parser.add_argument('-a', '--password', help="Password for Redis Auth")
+    parser.add_argument('-c', '--clients', help="Number of parallel connections (default 5)",
+                        type=int, default=5)
+    parser.add_argument('-n', '--requests', help="Total number of requests (default 100000)",
+                        type=int, default=10000)
+    parser.add_argument('-b', '--batch-size', help="Number of request to send in parallel",
+                        type=int, default=None)
+    parser.add_argument('-d', '--data-size', default=2, 
+                        help="Data size of SET/GET value in bytes (default 2)", type=int)
+    return parser.parse_args()
+
+
+def group_iterable(iterable, group_size):
+    it = iter(iterable)
+    while True:
+       chunk = tuple(itertools.islice(it, group_size))
+       if not chunk:
+           return
+       yield chunk
+
+
+class Benchmark(object):
+
+    def __init__(self, params):
+        self.params = params
+        self.request_count = self.params.requests
+        self.requests_per_client = int(math.ceil(self.params.requests / float(self.params.clients)))
+        self.response_count = 0
+        self.value = '*' * self.params.data_size
+
+    @tornado.gen.coroutine
+    def multiple_set(self, client_number):
+        client = tornadis.Client()
+        print "Connect client", client_number
+        yield client.connect()
+        print "Client", client_number, "connected"
+        futures = (client.call("SET", "benchmark-key", self.value)
+                   for _ in xrange(self.requests_per_client))
+        if self.params.batch_size:
+            batches = group_iterable(futures, self.params.batch_size)
+            for batch in itertools.imap(list, batches):
+                print "Send {} requests with client {}".format(len(batch), client_number)
+                responses = yield batch
+                resp_count = len(responses)
+                print "Received {} responses with client {}".format(resp_count, client_number)
+                self.response_count += resp_count
+        else:
+            print "Send {} requests with client {}".format(self.requests_per_client, client_number)
+            responses = yield list(futures)
+            resp_count = len(responses)
+            print "Received {} responses with client {}".format(resp_count, client_number)
+            self.response_count += resp_count
+
+
+    def stop_loop(self, future):
+        excep = future.exception()
+        if self.response_count == self.request_count:
+            loop = tornado.ioloop.IOLoop.instance()
+            loop.stop()
+        if excep is not None:
+            raise(excep)
+
+
+def main():
+    params = get_parameters()
+    if params.requests % params.clients != 0:
+        print >> sys.stderr, "Number of requests must be a multiple of number of clients"
+        sys.exit(-1)
+
+    loop = tornado.ioloop.IOLoop.instance()
+    benchmark = Benchmark(params)
+    print "Max requests per client:", benchmark.requests_per_client
+    before = datetime.datetime.now()
+    for client_number in xrange(params.clients):
+        future = benchmark.multiple_set(client_number)
+        loop.add_future(future, benchmark.stop_loop)
+    loop.start()
+    after = datetime.datetime.now()
+    seconds = (after - before).total_seconds()
+    print "{} seconds".format(seconds)
+    print "{} requests per second".format(int(params.requests / seconds))
+
+
+if __name__ == '__main__':
+    main()