Max swap size?
jeff at zingstudios.com
Wed May 28 23:40:57 MDT 2008
> Does a 4 GB swap partition seem excessively large to anyone?
Yes, it does. Maybe there's some kind of memory-crazy application that
runs on the server, but if so I would expect that for performance
reasons you'd drop 8GB of RAM into it rather than crunch through swap.
A rule of thumb I heard a long time ago was that swap should be anywhere
from half to equal to the amount of RAM on a machine. So if you have
1GB of RAM, a swap partition of 512MB - 1GB would be appropriate. But
I don't know if that's based in some kind of technical theory or if
it's just a random setting people like. :)
You commented that the 4GB swap drives were part of a RAID-1 array,
which seems silly (if I understand you correctly). There's no reason
to mirror swap data, and in fact it'll slow down the already dog-slow
use of the partition.
In short, I'd say it would be better all around to have a 1GB swap
partition (not RAIDed) and be done.
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