Linux and huge pages
From: CRISLER, JON A <JC1706_at_att.com>
Date: Tue, 22 Jan 2013 23:58:54 +0000
Message-ID: <9F15274DDC89C24387BE933E68BE3FD30820F05B_at_MISOUT7MSGUSR9D.ITServices.sbc.com>
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:
Date: Tue, 22 Jan 2013 23:58:54 +0000
Message-ID: <9F15274DDC89C24387BE933E68BE3FD30820F05B_at_MISOUT7MSGUSR9D.ITServices.sbc.com>
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.
-- http://www.freelists.org/webpage/oracle-lReceived on Wed Jan 23 2013 - 00:58:54 CET