app/django/core/handlers/profiler-hotshot.py
author Pawel Solyga <Pawel.Solyga@gmail.com>
Sun, 16 Nov 2008 12:48:23 +0000
changeset 484 6364f8b0656b
parent 54 03e267d67478
permissions -rw-r--r--
Add an e-mail dispatcher that can be used to send messages via the website. Add base and invitation templates that can be used with email dispatcher to send invitation emails. Please read the module doc string for more information how to use it. Patch by: Lennard de Rijk, Pawel Solyga

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)