Re: Performance problem: Loading data via insert

  • From: Carlos Sierra <carlos.sierra.usa@xxxxxxxxx>
  • To: abhishek.gurung@xxxxxxxxxxx
  • Date: Thu, 13 Mar 2014 08:36:30 -0500

Abhishek,

As always, start with the evidence:
What facts have you collected? What is AWR telling you? What are the SQL Traces 
telling? Which other diagnostics tools have you used for your case?

Cheers,

Carlos Sierra

blog: carlos-sierra.net
twitter: @csierra_usa

Life's Good!

On Mar 13, 2014, at 6:52 AM, Abhishek Gurung <abhishek.gurung@xxxxxxxxxxx> 
wrote:

> Hi
> 
> We are facing a performance problem but unable to identify where is the 
> problem.
> 
> We have a production database server where about 8 database instances of 
> oracle is running.
> Daily we insert in each of these database instances about 1-5 GB of data in 
> different tables.
> All database instances are working fine where we are able to load around 2-3 
> GB of data within 1hour except 
> 1 where it is taking about 8 hrs to load only 4 GB of data.
> 
> When I try to load the same 4GB of data in another database where only one 
> instance is running and with
> very less configuration as compared to the Production server we were able to 
> load it in 1hr 45 minutes.
> 
> Can anyone suggest how can we proceed to identify the problem?
> 
> Regards
> Abhishek

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