import hotshot import os import time 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 ..prof where is the request path with "/" replaced by ".", and 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)