Linux, i/o scheduler and ASM
From: CRISLER, JON A (ATTCORP) <"CRISLER,>
Date: Mon, 18 Apr 2011 15:51:01 +0000
Message-ID: <9F15274DDC89C24387BE933E68BE3FD30210CF_at_MISOUT7MSGUSR9D.ITServices.sbc.com>
Has anybody played around with changing the Linux I/O scheduler when using ASM (11gR2) ? I am wondering if any performance differences are to be found in using CFQ vs. Deadline vs other options, especially in a large RAC / SAN environment. Right now we are using CFQ, and in my previous experiments on filesystems I did not get any noticeable difference in changing to deadline.
Date: Mon, 18 Apr 2011 15:51:01 +0000
Message-ID: <9F15274DDC89C24387BE933E68BE3FD30210CF_at_MISOUT7MSGUSR9D.ITServices.sbc.com>
Has anybody played around with changing the Linux I/O scheduler when using ASM (11gR2) ? I am wondering if any performance differences are to be found in using CFQ vs. Deadline vs other options, especially in a large RAC / SAN environment. Right now we are using CFQ, and in my previous experiments on filesystems I did not get any noticeable difference in changing to deadline.
-- http://www.freelists.org/webpage/oracle-lReceived on Mon Apr 18 2011 - 10:51:01 CDT