[Zope-CMF] Skin Folders and Performance

[alan runyan]

> I believe there was some discussion in the group about this before, but 
> I can't find the thread right now.

yes
 
> Looking at Plone and other CMF products we know that everyone adds 
> skins or in some cases skin hierarchy's to the portal_skins properties. 
> My question.. are there demonstrated performance issues associated with 
> having deep 'Layers' for skins?

no
 
> Intuitively it would seem that having to traverse all of the folders to 
> pick a template would have some cost. Not sure if it is relevant.

not relevant
 
> I've thought about lessening the number of skin folders, and copying 
> product skins into these 'super skin' folders instead of merely 
> registering the skins and skin folders for each product.

try it
 
> Anyone care to weigh in, and/or point me to the thread that discussed 
> this?

dont have time.

wanna measure performance?  very simple.  make something unique
like yummagumma.pt and let it use a macro defined in its folder.
then use a macro that is at the end of the skinpath.  benchmark them.
Acquistion looked up is done in C its very fast.  I believe what you will
find lacking in speed is:

- ZPT
- portal_actions.listFilteredActionsFor()
- traversing manually to something instead of using catalog

if you do benchmarking test in -t 1 (one thread)

cheers,
~runyaga