Page 4 Performance very slow on dnn 6.2 - Performance and Optimization

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Performance very slow on dnn 6.2

6/5/2012 8:35 AM

Sebastian Leupold

www.dnnwerk.de
Joined: 3/8/2004

Posts: 46212

Re: Performance very slow on dnn 6.2

according to Gemini, there have been identified a couple of unnecessary database calls. If they get eliminated in DNN 6.2.1, you might experience a better performance of future versions

Cheers from Germany,
Sebastian Leupold

Speed up your DNN Websites with TurboDNN

6/5/2012 9:28 AM

Costas Zividis

Joined: 10/29/2010

Posts: 546

Re: Performance very slow on dnn 6.2

Sebastian Leupold wrote:
according to Gemini, there have been identified a couple of unnecessary database calls. If they get eliminated in DNN 6.2.1, you might experience a better performance of future versions

Sebastian, while i have only updated to 6.2 my test DNN portal, i would say that 6.2 seems very slow compared with 6.1x. Consider this is a test/empty DNN site.

I'm on a premium shared plan for DNN and i ask myself if this is the END of DNN supporting shared hosting plans, since 6.2 seems very-very demanding even totally empty.

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6/5/2012 10:05 AM

Richard Howells

www.dynamisys.co.uk
Joined: 3/26/2006

Posts: 2001

Re: Performance very slow on dnn 6.2

Sebastian. Clearly removing a couple of database calls will make the system faster.

Unless those calls do somthing absurd it will not turn 'very slow' into 'acceptable'.

Best wishes,
- Richard
Agile Development Consultant, Practitioner, and Trainer
www.dynamisys.co.uk

6/5/2012 10:50 AM

Sebastian Leupold

www.dnnwerk.de
Joined: 3/8/2004

Posts: 46212

Re: Performance very slow on dnn 6.2

Richard, please be aware that database calls are some of the most time-costly activities and replacing frequent unnecessary database calls by cache access might improve performance significantly. However, DNN 6.2 has a couple of new functions (Journal, Messaging) with background tasks, which does for sure not speed up the system and might still require some extra optimization effort.

Cheers from Germany,
Sebastian Leupold

Speed up your DNN Websites with TurboDNN

6/5/2012 11:09 AM

Richard Howells

www.dynamisys.co.uk
Joined: 3/26/2006

Posts: 2001

Re: Performance very slow on dnn 6.2

Sebastian, I am aware that database access is costly. I'm a programmer by profession.

What you said was "save a couple of un-necesary calls." If we assume that each DB call is 30mSec (it's never that precise) then saving a couple of calls is 60mS.

If performance is 'really slow' means (say) 2-10 second responses then you will never notice a 60mS change.

Like I said - not enough to turn 'very slow' into 'acceptable'.

Best wishes,
- Richard
Agile Development Consultant, Practitioner, and Trainer
www.dynamisys.co.uk

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Performance very slow on dnn 6.2

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