Aggregate profiling for WSGI requests
Project description
This package provides a WSGI middleware component which aggregates profiling data across all requests to the WSGI application. It provides a web GUI for viewing profiling data.
Installation
Install using setuptools, e.g. (within a virtualenv):
$ easy_install repoze.profile
Configuration via Python
Wire up the middleware in your application:
from repoze.profile.profiler import AccumulatingProfileMiddleware middleware = AccumulatingProfileMiddleware( app, log_filename='/foo/bar.log', discard_first_request=True, flush_at_shutdown=True, path='/__profile__' )
The configuration options are as follows:
- ``log_filename`` is the name of the file to which the accumulated profiler statistics are logged. - If ``discard_first_request`` to true (the default), then the middleware discards the statistics for the first request: the rationale is that there are a bunch of lazy / "first time" initializations which distort measurement of the application's normal performance. - If ``flush_at_shutdown`` is true (the default), profiling data will be deleted when the middleware instance disappears (via its __del__). If it's false, profiling data will persist across application restarts. - ``path`` is the URL path to the profiler UI. It defaults to ``/__profile__``.
Once you have some profiling data, you can visit path in your browser to see a user interface displaying profiling statistics (e.g. http://localhost:8080/__profile__).
Configuration via Paste
Wire the middleware into a pipeline in your Paste configuration, for example:
[filter:profile] use = egg:repoze.profile#profile log_filename = myapp.profile discard_first_request = true path = /__profile__ flush_at_shutdown = true ... [pipeline:main] pipeline = egg:Paste#cgitb egg:Paste#httpexceptions profile myapp
Once you have some profiling data, you can visit path in your browser to see a user interface displaying profiling statistics.
Reporting Bugs / Development Versions
Visit http://bugs.repoze.org to report bugs. Visit http://svn.repoze.org to download development or tagged versions.
repoze.profile 0.6 (2008-08-21)
discard_first_request = false did not work.
Clearing the profile data from the user interface did not properly discard profiler state.
repoze.profile 0.5 (2008-06-11)
Initial PyPI release.
repoze.profile 0.4 (2008-05-07)
Remove dependency-link to http://dist.repoze.org to prevent easy_install from adding that to its search path.
Incorporated a patch from Alec Flett <alecf@metaweb.com> to uses ‘cProfile’, if available, rather than pure Python ‘profile’.
Bump ez_setup.py version.
repoze.profile 0.3 (2008-02-20)
Added compatibility with Python 2.5.
Made setup.py epend explicitly on ElementTree 1.2.6: meld needs it but meld isn’t a setuptools package.
repoze.profile 0.2 (2008-02-20)
Added a browser UI.
Added a knob to control discard at shutdown.
repoze.profile 0.1 (2008-02-08)
Initial release.
Project details
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