Debug Management - Profile: Performance testing.


Zope can provide real-time profiling information. Profiling helps product authors to speed up sections of code that are taking too long to perform their tasks.

In order to use profiling Zope has to be started with the PROFILE_PUBLISHER environment variable set to a non-empty value. If the variable is set to a valid filesystem path, then the accumulated profile information will be dumped to the named file when Zope is shut down. If the variable is simply set to a non-empty value that is not a valid filesystem path then Zope will still run in profiling mode, but profile information will only be available through the web interface.

Note: Profiling will slow Zope performance significantly.

Once Zope has started in profiling mode visit your site with your Web browser - Zope will accumulate profiling information as you are working with your site. When you want to view the profiling information, visit the Control Panel, click on the Debugging information link and select the Profiling tab.

The profiling screen will show a list of methods and the amount of time each method is taking. Multiple views are available by changing the sort order and pushing the "update" button. The online profiler is based on the standard Python profile module. For specific information on the meaning of the profile information, see the standard Python documentation for the profile module.

When you are done profiling turn profiling off by restarting Zope without the PROFILE_PUBLISHER environment variable set.


How to sort function calls.
How many function calls to display.
Updates the profiling information.

See Also

Python profiler documentation