Odd Memory problem: SA NOT using available memory

From: JOW <jgwadmin(at)notes.wustl.edu>
Date: Fri Sep 28 2007 - 17:06:52 EDT

I'm out of my element on this, so please forgive me if I ask something silly.

We have two SpamAssassin (v3.002003) servers on Red Hat, each with 4gb RAM. ServerA ROCKS while ServerB SUCKS.

So I've been comparing the two systems hoping to find some configuration differences between them.

When I do a vmstat, I see a couple of things that are glaringly different: ServerA

procs                      memory      swap          io     system        

cpu
 r b swpd free buff cache si so bi bo in cs us sy id wa
 0 0 0 354012 154360 3395248 0 0 1 6 6 1 1 2 4 8

ServerB

procs                      memory      swap          io     system        

cpu
 r b swpd free buff cache si so bi bo in cs us sy id wa
 1 0 0 3831400 73308 148168 0 0 3 184 108 325 18 3 68 11

ServerA (the good one) is using nearly all of the 4gb of RAM available to it.
But ServerB is only using a fraction of available RAM and the # of context switches is tons higher, too.

I hope this isn't a silly question, but how significant is this, and where do I go from here?

Thanks for any help,
Joe

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Received on Fri Sep 28 17:07:32 2007