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how to use large pages in AIX with oracle

438679Jan 13 2006 — edited Aug 10 2009

Hi,

i'm trying to convince oracle to use large pages on AIX 5.3 but haven't
suceeded so far.
i set v_pinshm=1, maxpin%=80, lgpg_regions=448 and lgpg_size=16777216
using 'vmo' and 'LOCK_SGA=true' in spfile. after rebooting and starting
the instance 'svmon' shows no no large pages in use:

# svmon
size inuse free pin virtual
memory 4046848 3711708 335140 2911845 1503108
pg space 524288 5551

work pers clnt lpage
pin 1076604 0 233 1835008
in use 1503010 0 373690 0

pgsize size free
lpage pool 16 MB 448 448

SGA size is 3G. why doesn't oracle use large pages? i already have
created a TAR but maybe an oracle-on-AIX expert can help me faster than
oracle support :)

regards,
-ap

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Locked on Sep 7 2009

Added on Jan 13 2006

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