From: Green, Simon (Simon.Green@EU.ALTRIA.COM)
Date: Wed May 14 2003 - 11:12:56 EDT
A high free memory value just means wasted memory. AIX is too smart to
allow that.
If it really does drop to 0 frequently you may have a problem, but it will
show up in the paging and fr/sr values.
The amount of paging space you use is heavily application dependent. One of
the servers I look after uses up to 70GB paging space, with 16GB (iirc) of
RAM, but that's entirely normal for the application. (Although it's not a
brilliantly written application, from what I can tell.)
I normally start off by looking at pi/po. Yours looks tolerable -
especially if your users are happy. You might like to check your VMM
settings with vmtune as the defaults are not normally appropriate for a
database server.
Simon Green
Altria ITSC Europe s.a.r.l.
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 not be appreciated.
> -----Original Message-----
> From: racing@BRIDGE.COM.BR [mailto:racing@BRIDGE.COM.BR]
> Sent: 14 May 2003 15:25
> To: aix-l@Princeton.EDU
> Subject: Low Memory
>
>
> Hi *,
>
> We have 2 RS6000/6H1 with the following caracteristics:
>
> - 2Gb memory each
> - Paging Space
> Page Space Physical Volume Volume Group Size %Used
> Active Auto
> Type
> hd6 hdisk0 rootvg 4096MB 16
> yes yes
> lv
>
> - Oracle 8.1.7 Parallel with 1.3 Gb SGA (each one)
>
> And we are experience low memory(sometimes "0") in the free
> list field.
<SNIP>
> The free list is too small, isn`t it ?
> What should i do ?
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