Re: Why I get different 'db file scattered read' values?
- From: Wolfgang Breitling <breitliw@xxxxxxxxxxxxx>
- To: oracle-l@xxxxxxxxxxxxx
- Date: Mon, 19 Jul 2004 13:47:48 -0600
There you have the answer. Since a scattered read can't cross an extent
boundary (as Mark has already pointed out too), the most you can get with
an 8K blocksize is 8 blocks per multiblock read. (8 x 8K = 64K). The
occasional < 8 block reads could be due to one of the blocks being in the
buffer pool already.
At 12:47 PM 7/19/2004, you wrote:
Hi Wolfgang I use 64k uniform size.
Regards
Wolfgang Breitling
Centrex Consulting Corporation
www.centrexcc.com
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