>>>In theory, Oracle's dbwr is supposed to be able to initiate
>>>other io requests while wating for any given one to
>>>complete. In practice there seems to be an empyrical limit
>>>to this, not very clear why.
The only limiting factor on dbwr outstanding IO requests is
the lower-level io queue depth. If you have really fast IO and
really deep queues, you can see dbwr with well over a thousand
outstanding IO requests.
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Received on Tue Mar 14 2006 - 09:42:28 CST
