[TYPO3-core] Taming the Performance in 6.2

[Alexander Opitz]

Hi Mathias,

>> @Tom:
>> Could you post your measurements about the differences on "keep stuff in
>> RAM" vs. "access a lot of files"?
>
> I did not keep the profiling data from the last year where I started
> what ended up here in the core.
>
>  > There has to be a certain breakpoint where accessing lots of file
>  > out-race the RAM usage.
>
> Keep in mind that PHP cannot keep anything in RAM from request to
> request. It has to be loaded upfront from disk to ram during the
> bootstrapping process and introduces its own delay. Parsing that large
> arrays and building them is expensive too. Still the issue with that is
> that the information is needed exactly just once per entry.

You may find informations to this point in 
http://forge.typo3.org/issues/46615 and the links there. To get a small 
view of one part of the problem.

Greetings

-- 
Alexander Opitz

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