+
−import hotshot, time, os
+
−from django.core.handlers.modpython import ModPythonHandler
+
−
+
−PROFILE_DATA_DIR = "/var/log/cmsprofile"
+
−
+
−def handler(req):
+
−    '''
+
−    Handler that uses hotshot to store profile data.
+
−
+
−    Stores profile data in PROFILE_DATA_DIR.  Since hotshot has no way (that I
+
−    know of) to append profile data to a single file, each request gets its own
+
−    profile.  The file names are in the format <url>.<n>.prof where <url> is
+
−    the request path with "/" replaced by ".", and <n> is a timestamp with
+
−    microseconds to prevent overwriting files.
+
−
+
−    Use the gather_profile_stats.py script to gather these individual request
+
−    profiles into aggregated profiles by request path.
+
−    '''
+
−    profname = "%s.%.3f.prof" % (req.uri.strip("/").replace('/', '.'), time.time())
+
−    profname = os.path.join(PROFILE_DATA_DIR, profname)
+
−    prof = hotshot.Profile(profname)
+
−    return prof.runcall(ModPythonHandler(), req)