Are design customizations built when the parse file is parsed (ie when you commit changes to the parse file or manually reparse it), or when a page is loaded in the front end? In other words, is a heavily customized design a performance hit? I've been assuming not, and that all the work is done in _admin. Am I right?
When are design customizations calculated?
fuzzi81
#2
Allot of customizations to a design file can slow down the rendering of a page. That’s been the advice we have been given. We don’t have allot of customizations - though alllllot of sites.
The design file regeneration for new customized areas can be intensive. I wouldn’t do it at peak editing times.
Bart
(Bart Banda)
#3
If you have design area in your parse file and you have customised it, changes to that design area in the parse file won't affect the design customisation. I don't believe loading a page with a customisation of a parse file with lots of other customisations is a performance hit, but updating a parse file with lots of customisations is. I would also suggest to try and keep your customisation count low, somewhere in the 20s at the most.