RE: AIX pinned memory
- From: "Jesse, Rich" <Rich.Jesse@xxxxxx>
- To: "ORACLE-L" <oracle-l@xxxxxxxxxxxxx>
- Date: Thu, 14 Dec 2006 16:39:51 -0600
I was told there would be no math today, but doesn't 679182 x 4096 =
2781933568 or ~2.6GB? Did you mean to use "7689914" instead of
"679183"?
And I'm not sure, but the vmstat man page leads me to believe that this
pool may include FS buffers, but the verbage isn't terribly clear. I
would tend to believe that as vmstat reports ~495 MB pinned for me on
one LPAR, but I have no instances up on there at this time.
Rich
-----Original Message-----
From: oracle-l-bounce@xxxxxxxxxxxxx
[mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Adrian
Sent: Thursday, December 14, 2006 4:00 PM
To: Brandon.Allen@xxxxxxxxxxx; 'Mladen Gogala'; 'Mladen Gogala';
'ORACLE-L'
Subject: RE: AIX pinned memory
Hi Brandon,
If it helps, I too see an over-allocation on an AIX 5.3 LPAR:
$ vmstat -v
33554432 memory pages
26814245 lruable pages
679183 free pages
6 memory pools
7689914 pinned pages
679183 x 4Kb = 29.33GB
But...
sga_max_size = 20G
lock_sga = TRUE
and
ipcs -am segsz=21474881536
I'm not sure what it means, or if it matters, other than perhaps
something
else is pinning memory?
HTH
Adrian
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