Not my solution, just something I was meaning to try.
-----Original Message-----
Sent: 25 February 2002 11:18
To: Multiple recipients of list ORACLE-L
Performance problems with db file sequential read can happen for two
reasons:
1) you are doing too many I/O
2) each I/O is too slow (now there can many reaons why I/O is slow).
So your solution of going with the INDEX_FFS hint is too reduce the number
of
I/O. Well what if the problem is that the I/O is too slow ?
Anjo Kolk
http://www.oraperf.com
Robertson Lee - lerobe wrote:
> All,
>
> Oracle 8.0.5.0.0 Tru64 4.0f
>
> We are having a performance issue with one of our applications and it
looks
> like it is pointing to the db file sequential reads event. I have been
doing
> some digging around and a recommendation in a book I have has suggested a
> possible way to alleviate this is to use the INDEX_FFS hint in the query.
> Anyone used this before ??. or indeed any other recommendations where I
> should be looking.
>
> Regards
>
> Lee
>
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Author: Anjo Kolk
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Author: Robertson Lee - lerobe
INET: lerobe_at_acxiom.co.uk
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Received on Mon Feb 25 2002 - 06:08:21 CST
