Re: Buffer gets increase in massive execution

  • From: Alfonso León <aleon68@xxxxxxxxx>
  • To: oracle-l <oracle-l@xxxxxxxxxxxxx>
  • Date: Mon, 8 Aug 2005 13:55:00 -0500

It is the same execution plans
in batch processing the CPU gets use up to 100%
Same optimizer mode and the batch fires the same transaction OLTP does.

On 8/8/05, Allen, Brandon <Brandon.Allen@xxxxxxxxxxx> wrote:
> Sounds like different explain plans between the two executions.  Do you have 
> different system stats for different periods (OLTP/batch) of the day?  Are 
> you changing optimizer_mode or any other parameters in your batch process?  
> Do you have a smaller arraysize in your batch process?
> 
> 
> 
> -----Original Message-----
> From: oracle-l-bounce@xxxxxxxxxxxxx
> [mailto:oracle-l-bounce@xxxxxxxxxxxxx]On Behalf Of Alfonso León
> Sent: Monday, August 08, 2005 11:46 AM
> To: oracle-l
> Subject: Buffer gets increase in massive execution
> 
> 
> Hi:
> 
> I have a batch process that executes individual transactions, normally
> a transaccion e.g. a simple select would take  8-10 buffer gets but in
> the batch processing it takes 45 buffer gets.
> 
> Any ideas in the explanation?
> 
> TIA
> 
> --
> Alfonso Leon
> --
> //www.freelists.org/webpage/oracle-l
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-- 
Alfonso Leon
--
//www.freelists.org/webpage/oracle-l

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