RE: I/O and db_file_multiblock_read_count
- From: "Mladen Gogala" <mgogala@xxxxxxxxxxx>
- To: <jkstill@xxxxxxxxx>, <kmoore@xxxxxxxxxxxx>
- Date: Mon, 11 Dec 2006 16:06:11 -0500
That's not particularly interesting. Linux has maximum
atomic I/O read smaller then 1MB (I believe it's 256KB?) so
using 1MB blocks will
Inevitably break one I/O request into many.
_____
From: oracle-l-bounce@xxxxxxxxxxxxx
[mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Jared
Still
Sent: Monday, December 11, 2006 3:46 PM
To: kmoore@xxxxxxxxxxxx
Cc: oracle-l
Subject: Re: I/O and db_file_multiblock_read_count
Interesting that the 64K blocksize significantly outperforms
the 1M blocksize.
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