2GB swap partition limit?

Callum Lerwick seg at haxxed.com
Fri Mar 17 08:19:06 UTC 2006


On Thu, 2006-03-16 at 11:00 -0700, Lamont R. Peterson wrote:
> IMHO, the main reason that the common advice is something like "2x RAM" is 
> that those in the know were not willing or able (for whatever reason(s)) to 
> explain the real truth to newbies, and that led to people thinking that it 
> was some magic number.  I've even heard otherwise intelligent, knowledgeable 
> admins tell people that you *absolutely must* make swap 2x RAM or it won't 
> work or "performance will be horrid at best."

Speaking from experience, the 2x RAM rule was quite real for some time.
2.4 was very swap happy, and early 2.6 had some rather nasty OOM killer
bugs...
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