[CalendarServer-changes] [6238] CalendarServer/trunk/contrib/performance/event_delete.py

[source_changes at macosforge.org]

Revision: 6238
          http://trac.macosforge.org/projects/calendarserver/changeset/6238
Author:   exarkun at twistedmatrix.com
Date:     2010-09-03 11:59:39 -0700 (Fri, 03 Sep 2010)
Log Message:
-----------
Add a benchmark for event deletion

Added Paths:
-----------
    CalendarServer/trunk/contrib/performance/event_delete.py

Added: CalendarServer/trunk/contrib/performance/event_delete.py
===================================================================
--- CalendarServer/trunk/contrib/performance/event_delete.py	                        (rev 0)
+++ CalendarServer/trunk/contrib/performance/event_delete.py	2010-09-03 18:59:39 UTC (rev 6238)
@@ -0,0 +1,58 @@
+
+"""
+Benchmark a server's handling of event deletion.
+"""
+
+from itertools import count
+from urllib2 import HTTPDigestAuthHandler
+
+from twisted.internet import reactor
+from twisted.internet.defer import inlineCallbacks, returnValue
+from twisted.web.client import Agent
+from twisted.web.http_headers import Headers
+
+from httpauth import AuthHandlerAgent
+from httpclient import StringProducer
+
+from benchlib import initialize, sample
+from event import makeEvent
+
+ at inlineCallbacks
+def measure(host, port, dtrace, attendeeCount, samples):
+    user = password = "user01"
+    root = "/"
+    principal = "/"
+    calendar = "event-deletion-benchmark"
+
+    authinfo = HTTPDigestAuthHandler()
+    authinfo.add_password(
+        realm="Test Realm",
+        uri="http://%s:%d/" % (host, port),
+        user=user,
+        passwd=password)
+    agent = AuthHandlerAgent(Agent(reactor), authinfo)
+
+    # Set up the calendar first
+    yield initialize(agent, host, port, user, password, root, principal, calendar)
+
+    # An infinite stream of VEVENTs to PUT to the server.
+    events = ((i, makeEvent(i, attendeeCount)) for i in count(2))
+
+    # Create enough events to delete
+    uri = 'http://%s:%d/calendars/__uids__/%s/%s/foo-%%d.ics' % (
+        host, port, user, calendar)
+    headers = Headers({"content-type": ["text/calendar"]})
+    urls = []
+    for i, body in events:
+        urls.append(uri % (i,))
+        yield agent.request(
+            'PUT', urls[-1], headers, StringProducer(body))
+        if len(urls) == samples:
+            break
+
+    # Now delete them all
+    samples = yield sample(
+        dtrace, samples,
+        agent, (('DELETE', url) for url in urls).next)
+    returnValue(samples)
+
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