From: Green, Simon (SGreen@KRAFTEUROPE.COM)
Date: Fri Sep 13 2002 - 12:03:43 EDT
Check memory tuning, as Daryl suggested.
Is the system actually paging? A lot of applications use a certain amount
of paging space either at start up or when the load changes from on-line to
batch at the end of the working day, and vice versa in the morning. This
isn't necessarily a problem.
Run vmstat 10 10 (or whatever you fancy) and see if you have anything in the
pi/po columns. If not, then you're not short of memory. If you do, then
you might be but look at vmtune first.
Simon Green
Philip Morris ITSC Europe
AIX-L Archive at http://marc.theaimsgroup.com/?l=aix-l&r=1&w=2
AIX FAQ at http://www.faqs.org/faqs/aix-faq/
N.B. Unsolicited email from vendors will seldom be appreciated.
> -----Original Message-----
> From: Bill Verzal [mailto:Bill_Verzal@BCBSIL.COM]
> Sent: 13 September 2002 14:54
> To: aix-l@Princeton.EDU
> Subject: Memory and swap question
>
>
> OK - I need to convince management of something. I am hoping
> the scenario
> I am presenting to the list will work. Please be my Guinea pigs.
>
> I have a Regatta node that I believe to be memory
> constrained. How can we
> tell ? We ran out of swap space and the system hung. I
> proposed adding
> memory but was told "they got what they asked for, leave it alone."
>
> So I upped swap space from 512MB to 2GB. Currently it is
> 13.5% used, which
> I calculate out to 276MB.
>
> Can I make the statement "If I add 276MB of memory, our
> swapping should
> decrease significantly" (or some similar statement) ???
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