Re: Very high buffer gets
- From: Stephane Faroult <sfaroult@xxxxxxxxxxxx>
- To: nnahata@xxxxxxxxxxxx
- Date: Mon, 13 Feb 2006 18:11:11 +0100
High-water mark of death? If you have recently had some service
interruption and requests have accumulated into the queue, it might be
an explanation.
Stephane Faroult
Nahata, Naveen (US - Glen Mills) wrote:
Hi All,
After tracing the QMON process which was doing lots of buffer gets, I
found this culprit. None of the three tables involved in the query have
more than 2 blocks. I know the nested loop is iterating over the blocks
but that should still not account for more than 200 blocks / execution.
Why do I see such high values for buffer gets?
--
http://www.freelists.org/webpage/oracle-l
- References:
- Very high buffer gets
- From: Nahata, Naveen (US - Glen Mills)
Other related posts:
- » Very high buffer gets
- » Re: Very high buffer gets
- » RE: Very high buffer gets
- » Re: Very high buffer gets
- » RE: Very high buffer gets
- » RE: Very high buffer gets
- » RE: Very high buffer gets
- » RE: Very high buffer gets
- » RE: Very high buffer gets
- » RE: Very high buffer gets
- » Re: Very high buffer gets
- » Re: Very high buffer gets
- » RE: Very high buffer gets
- » RE: Very high buffer gets
Hi All,
After tracing the QMON process which was doing lots of buffer gets, I
found this culprit. None of the three tables involved in the query have
more than 2 blocks. I know the nested loop is iterating over the blocks
but that should still not account for more than 200 blocks / execution.
Why do I see such high values for buffer gets?
- Very high buffer gets
- From: Nahata, Naveen (US - Glen Mills)