[TYPO3-core] RFC: #11271: Use 2 level cache for BEgetRootLine

[Rupert Germann]

Steffen Kamper wrote:
> i'm working on mainly two sites having a huge page tree (20000 +) and
> where some operations block the work for minutes! So i see a reason for
> speeding that up. 

assumed that this a 4.3 installation I'd also investigate the impact of
flushByTag() 
see: http://bugs.typo3.org/view.php?id=11285

greets
rupert

ps: did you know that there are several other (uncached) getRootLine
functions in BE?