Linux and huge pages
- From: "CRISLER, JON A" <JC1706@xxxxxxx>
- To: oracle-l <oracle-l@xxxxxxxxxxxxx>
- Date: Tue, 22 Jan 2013 23:58:54 +0000
We are trying to come up with a script to troubleshoot hugepages setup in
Linux. I see there is a parameter for USE_LARGE_PAGES which in 11.2.0.3 has 4
different values:
True - use huge pages if available, otherwise use regular mem
False- don't use huge pages
Only- only use huge pages, and if huge pages are not sufficient, throw an error
and shutdown instance.
Auto- new in 11.2.0.3 - use oradism to reconfigure kernel to allocate huge pages
(this is a subset of Oracle Support technote 1392497.1).
My question- is there a view or a method to determine where oracle is actually
using the huge pages ? Something besides sysctl or cat /proc/meminfo, ideally
similar to v$sgainfo.
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