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Swap partition vs. dynamic swap performance tradeoff?

Swap partition vs. dynamic swap performance tradeoff?

Post by <stiller> » Sat, 22 Jul 1995 04:00:00



What are the tradeoffs in performance, if any, under Solaris 2.4, between
repartitioning the disk to increase swap space and dynamically adding
swap space using swap -a? Apparently Sun recommends partitioning
at thrice the RAM, but Henry and Graham's book on Solaris says it
is unnecessary.

We're looking at running programs under 128M RAM, they may use at least 256M
virtual space.

(P.S. Posting from new machine...Hope this gets out.)

 
 
 
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1. Any performance difference between swap file and swap partition?

I think that I'd much rather be able to use a swap file, because I'm not sure
exactly how much swap space I need, but I'm worried about performance.  Does
swapping take longer in a file?  What about trashing the partition that the
swap file is in?

Thanks for any info.

me

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