RE: AIX pinned memory

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_at_freelists.org
[mailto:oracle-l-bounce_at_freelists.org] On Behalf Of Adrian Sent: Thursday, December 14, 2006 4:00 PM To: Brandon.Allen_at_OneNeck.com; '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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