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IBM Cognos 10 Platform => Cognos 10 BI => Cognos Administration => Topic started by: jayatu on 09 Sep 2014 01:27:06 PM

Title: Cognos Report performance enhancement
Post by: jayatu on 09 Sep 2014 01:27:06 PM
Hi all,

I need to enhance the performance of some Cognos reports that are taking long time to run.

Can you guide me on what tools I can use to identify the root cause for the delay. I have tried using the Cognos Dynamic Query Analyzer to debug the queries but with no luck. The query tree generated has empty nodes with no information.

I am using a DQM enabled model on Cognos 10.2.1

Thanks,
Jayatu
Title: Re: Cognos Report performance enhancement
Post by: bdbits on 09 Sep 2014 04:47:23 PM
Ask your database people to run a trace when you run your report. This will help determine if it is a database query issue, or something else.

Try taking a copy of your report, then removing things from the report and see if one particular item is causing the poor performance.

I had a link to this post from a long time ago, which I remember being quite detailed in output, but I do not think I have tried this in v10 so it may or may not still work.
http://www.cognoise.com/index.php/topic,14095.msg44678.html#msg44678 (http://www.cognoise.com/index.php/topic,14095.msg44678.html#msg44678)