/ Not Using Large Pages On AIX

(Doc ID 740603.1)

Last updated on APRIL 06, 2015

Applies to:

Oracle Database - Enterprise Edition - Version and later
IBM AIX on POWER Systems (64-bit)
z*OBSOLETE: IBM AIX 4.3 Based Systems (64-bit)
IBM AIX Based Systems (64-bit)IBM AIX 4.3 Based Systems (64-bit)
IBM RS 6000 AIX 5LAIX-Based Systems (64-bit)
***Checked for relevance on 03-Nov-2011***


You installed or on AIX and configured correctly large pages but the Oracle instance is not using them.

Or you updated your database from to and now the instance is no longer using large pages.

You can check large pages usage with 'svmon -G'

With the same OS configuration Oracle will use large pages.


Recently applied patchset or


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