On Sat, 19 Apr 2008, Richard Elling wrote:
>
> Don't worry about swapping on CF.  In most cases, you won't be
> using the swap device for normal operations.  You can use the
> swap -l command to observe the swap device usage.  No usage
> means that you can probably do away with it.  If you actually
> use swap, performance will suck, so buy more RAM.

I don't agree that if swap is used that performance will necessarily 
suck.  If swap is available, Solaris will mount /tmp there, which 
helps temporary file performance.  It is best to look at system paging 
(hard faults) while programs are running in order to determine if 
performance sucks due to inadequate RAM.  In many runtime 
environments, only a small bit of the application address space is 
ever needed.

More RAM definitely improves ZFS repeated read performance due to 
caching in RAM.  ZFS gives otherwise unused memory something useful to 
do.

Regardless, with a 64-bit CPU and a 64-bit OS it seems like a crying 
shame to install less than 4GB of RAM. :-)

Bob
======================================
Bob Friesenhahn
[EMAIL PROTECTED], http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer,    http://www.GraphicsMagick.org/

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