RE: Problems with large pages on AIX after upgrading to 10.2.0.4.3
- From: "Allen, Brandon" <Brandon.Allen@xxxxxxxxxxx>
- To: patrick obrien <po04541@xxxxxxxxx>, oracle-l-freelists <oracle-l@xxxxxxxxxxxxx>
- Date: Thu, 4 Mar 2010 11:55:43 -0700
No, we didn’t see any AIX errors, but it was weird what would happen when we
started up the instance before we tried setting ORACLE_SGA_PGSZ. We’d set
lgpg_regions=64 and reboot the host, then when it came up, it would show the 64
pages allocated in the output of svmon –G and vmstat –l, like this:
large-page
--------------
alp flp
0 64
But after we’d start the Oracle instance, the value of flp would go down by
some odd number, but alp wouldn’t go up like it should:
large-page
--------------
alp flp
0 35
After setting ORACLE_SGA_PGSZ=16m and increasing lgpg_regions=65, we now see
all the pages allocated to Oracle as expected:
large-page
--------------
alp flp
65 0
Regards,
Brandon
From: patrick obrien [mailto:po04541@xxxxxxxxx]
Allen,
did you get any kind of aix error? errpt -a, if so, ibm might have a fix for
this.
POB.
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