app/django/core/handlers/profiler-hotshot.py
author Todd Larsen <tlarsen@google.com>
Thu, 16 Oct 2008 04:37:13 +0000
changeset 351 b37fc4c1e189
parent 54 03e267d67478
permissions -rw-r--r--
Eliminate the Work.abstract property and move the Document.content property to Work.content instead. Update affected views, and re-base some classes that were deriving from Document just to get Document.content to now be derived from Work instead. The Document class now has a "pass" body with no additional properties. It is debatable whether Work should become Document, since I am not sure that we plan to be able to generically display, say, a Quiz or a Question (which are Works) on the home page (which can only specifically display a Document, or now, the basic Work entity...). Patch by: Todd Larsen Review by: to-be-reviewed

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)