[Zope-CMF] [dev] listFilteredActionsFor performance

[yuppie]

Hi!


Recently there was some discussion about listFilteredActionsFor performance:
http://mail.zope.org/pipermail/zope-cmf/2005-April/022110.html

and I noticed Tres was experimenting with some CMF 1.5 modifications:
http://mail.zope.org/pipermail/cmf-checkins/2005-April/006014.html
http://mail.zope.org/pipermail/cmf-checkins/2005-April/006015.html


These are my observations:

The time spent in listFilteredActionsFor heavily depends on the specific 
usage of Actions:

- number and kind of Action providers
- number of Actions
- number of expressions
- number of workflow definitions
- anonymous or authenticated users
- size of the site

So it's hard to measure performance. But in general most time is spent 
in expressions and in the WorkflowTool. Within the WorkflowTool, 
worklists are by far the most expensive Actions.


Can anybody confirm these observations?

@Tres: Do you have different results? Were you able to improve the 
performance significantly?


Cheers,

	Yuppie