RE: 11g AMM tmpfs vs hugepages for best overall performance
- From: "Crisler, Jon" <Jon.Crisler@xxxxxxx>
- To: <oracle-l@xxxxxxxxxxxxx>
- Date: Wed, 21 Jul 2010 12:02:44 -0400
And a follow up question- if I implement a large /tmpfs - shm, I can
still use choose to not use AMM and use hugepages, correct ?
From: oracle-l-bounce@xxxxxxxxxxxxx
[mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Crisler, Jon
Sent: Wednesday, July 21, 2010 11:57 AM
To: oracle-l@xxxxxxxxxxxxx
Subject: 11g AMM tmpfs vs hugepages for best overall performance
Which is better for performance on large Red Hat 5 systems (64gb+
memory, 8+ cpu's) - using 10g style shm settings and hugepages, OR the
newer 11g Automatic Memory Manager (which does not support hugepages).
The system I am building is a 6 node 11g R1 RAC, memory somewhere
between 64gb and 256gb (not sure yet), 8 cpu per node. This machine
will support a huge workload.
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