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HomeHomeUsing DNN Platf...Using DNN Platf...Administration ...Administration ...7.2.1 Slow7.2.1 Slow
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2/3/2014 10:46 AM
 
Mike Ryckman


Joined: 4/17/2011
Posts: 519

Hello,

We recently upgraded from 7.0.5 to 7.2.1 and the site seems much slower. I suspect it has to do with the DB because new page loads take the longest and then they improve significantly once cached. Still, the whole site seems more sluggish and we're getting many more viewstate errors - which I think are coming from users getting annoyed about load times and clicking things before the page loads.

Has anybody else run into this or does anybody have any ideas. I'm not even sure of a good way to try to debug things because of the nature of it.

Thanks,

Mike
 
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2/3/2014 12:54 PM
 
Chris Onyak


www.OnyakTech.com
Joined: 8/27/2003
Posts: 799

Do you have a lot of files in your portals?  I helped someone upgrade to 7.2.1 recently and it had the same issue.  It was caused by the File Content Manager processing all of the files in the portal.  In this case, it was triggered by opening the Site Settings which causes the URL File Picker control to load the files in the current portal.

That portal had over 12,000 files.  It never completed the task and crashed the entire site.  


Professional DNN Extensions, custom solutions and mobile apps since 2003.
www.OnyakTech.com
 
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2/3/2014 12:58 PM
 
Chris Onyak


www.OnyakTech.com
Joined: 8/27/2003
Posts: 799

To find the problem... install the Red Gate Profiler on the server and then attach to the IIS process while the site is in use.   You should be able to identify the cause.  Red Gate Profiler will isolate out methods in the stack that have poor performance.


Professional DNN Extensions, custom solutions and mobile apps since 2003.
www.OnyakTech.com
 
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2/3/2014 1:11 PM
 
cathal connolly


cathal connolly's Avatar

www.cathal.co.uk
Joined: 4/9/2003
Posts: 9676

oddly enough 7.2.1 contains lots of performance tweaks (kindly contributed by Sebastian Leupold), so 7.2.1 should be faster. In theory one of those performance tweaks could have had a negative effect (e.g. improved read speed, but slowed add/edit/delete for certain actions), but we haven't heard other reports or noticed it in our testing (and Sebastian's used versions of the improvement in the dnn Europe community for a few months now)

I'd recommend running sql server profiler and recording a trace to try and see what is taking so long.

Buy the new Professional DNN7: Open Source .NET CMS Platform book Amazon US
 
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2/3/2014 1:23 PM
 
Mike Ryckman


Joined: 4/17/2011
Posts: 519
Thanks guys... I'll keep trying to track it down.

It's looking like pages are slowing at the Init stage (from a simple page trace) when they are first loaded - usually between 2-6 seconds. After they've been loaded into the cache, it's not a problem.
 
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