On 12/3/09 9:39 AM, der.hans wrote:
> Having swap be 1.5 times the size of ram is good, double the size of ram
> is better.
Those are old-school heuristics from back in the day when 32 MB was a
lot of RAM. I stretch to think of a case where 6-8 GB of swap would
come into play at *all*. That is, if you have a case where the system
is using multi-gig amounts of swap, then I can almost guarantee that it
is utterly unusable. One could say that it's there as a
"just-in-case"... but I'm having a hard time buying that. Unusable is
unusable. It would take so incredibly long to recover that any
production server would have long been rebooted or managed some other way.
I think I did 2x RAM up until I had 512MB and then 1x RAM until I got to
1GB. Then I was .5x at 2GB RAM and finally .25x now ;-)
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