4GB RAM slows down ubuntu

Chris Jones jonesc at hep.phy.cam.ac.uk
Wed Aug 5 11:01:33 UTC 2009


femi71 at web.de wrote:
>>> Now after installing kubuntu with kernel 2.6.24-24-generic the problem is the same: 3GB are ok, 4GB slow down the system dramatically (2, 3 times slower). 
>> Under 32 bits you hae to run with a special PAE kernel (available in the 
>> repos, I forget the name but someone will know) in order to access that 
>> much ram.
> 
> Sorry, i forgot to mention that i have a 32bit CPU. How to use the PAE kernel? Do i have to download it and compile myself?

no, it is in the standard repositories - I believe it is called the 
'server' version. Sorry, don't have a ubuntu system to hand to be more 
precise...

cheers Chris

> 
> Thanks
> 
> Günther
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