[TYPO3-english] TYPO3 6.x caches and performance best practices for productive site

[Domi]

Hi Steffen,

> Are you using an international domain name (just for curiosity)?
> Otherwise we could try to reduce the calls to this function.
> isValidUrl() costs >10% of your request time.
For testing on my local vhost I just use a domain without tld, here in 
my case just http://students/. I never thought that this could cause any 
problems.

> By briefly looking at the call hierarchy, these calls originate from
> concatenating CSS and JS files. Have you tried disabling these? You
> could give EXT:scriptmerger a try, which does some things better than
> the core routines.
Merging and concatenating is disabled, but I know about the scriptmerger 
extension, I'll give it a try in the end of my development.


> Sorry, it's had to look at the statistics without knowing some details
> of the runs and the setup.
>
> I can recommend you setting up http://xhprof.io, when you make that
> publicly available, I can have a look again.
>
I will try to get this running, currently I am using a server managed 
hosting, hopefully they install it soon.

Thanks a lot,

Dominic