[Setup] huge performance issues using Diazo

[Héctor Velarde]

during the deployment of a new site using Diazo we have found huge 
performance problems causing delays of more than 25 seconds on each page 
loaded.

these problems are more evident, and intolerable, for logged in users 
accessing the site to add content.

a quick review using some profiling tool showed us where the problem is: 
64 calls to transformIterable() [1] causing delays of 0.374 seconds each 
one.

we obviously need to rethink the theme to reduce the number of 
transformations, but I would like to listen to other people's advice:

have you ever found such performance issues when using Diazo on your 
deployments?

what's the best approach for using Diazo with complex themes? WSGI or 
nginx? [2]

best regards

[1] 
https://github.com/plone/plone.app.theming/blob/master/src/plone/app/theming/transform.py#L200

[2] http://docs.diazo.org/en/latest/deployment.html
-- 
Héctor Velarde

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