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Memory Leaks?

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Steve Bywaters
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Steve Bywaters asked on 18 Jun 2010, 03:10 AM
I find that whenever I use RadTabStrip + RadMultipage in a complex FormView, I get:
  1. Slower and slower response inside VS2008...
  2. Memory bloat - up to about 1Gb used - then...
  3. VS crashes (3 times this morning!! Each after use of 1Gb memory)

I only seem to have this problem when using these components in a complex form - otherwise VS etc is quite stable

Ideas?

XP SP3 (4Gb ram)
Telerik 2010 controls
ASP.NET 2.0/3.5

Steve

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T. Tsonev
Telerik team
answered on 18 Jun 2010, 08:52 AM
Hi Steve,

We were unable to confirm any link between using the RadTabStrip control and the VS memory usage in our tests. Can you please send us a test project/page that we can use for testing?

Also, can you try disabling all add-ons like ReSharper and others. Does this improve the memory usage?

All the best,
Tsvetomir Tsonev
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Steve Bywaters
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answered on 21 Jun 2010, 12:29 AM
Ok, I've uploaded the page I'm currently working on, plus the required Master page and style sheet.

http://members.lifetimedistributors.com.au/LDtest.zip


Simply open up the page in VS2008, go to the FormView ("fvEdit"), set it to open the EditItemTemplate, and start working there (where most of the controls are, within a table) .
Edit some controls, move them around, close the template, re-open the template, etc, etc, etc
Do all the stuff you would do when building up a reasonably complex form.

In my work here, Task Manager showed VS memory use going from an initial 200M or so up to 1G+ in about an hour!
(Then 'bang', as VS falls over)

HTH
Steve
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Steve Bywaters
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answered on 21 Jun 2010, 03:10 AM
And here we go with the memory blow-out:
http://members.lifetimedistributors.com.au/clip1.jpg

It took me 2 hours to get there - working on the form all the time.




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Steve Bywaters
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answered on 21 Jun 2010, 04:09 AM
..and here we go again... < 1 hour later!

http://members.lifetimedistributors.com.au/clip2.jpg
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Dimitar Milushev
Telerik team
answered on 23 Jun 2010, 03:16 PM
Hi Steve,

I tested the page and indeed Visual Studio's memory usage gradually grows, but I also tested the same page with the TabStrip and PageView removed and editing the template through the Design mode still causes Visual Studio's memory usage to grow. I don't think this is exactly a memory leak - Visual Studio has some known problems with memory fragmentation and it seems that the amount of Controls/markup causes the memory usage to skyrocket in this case.

Best wishes,
Dimitar Milushev
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Steve Bywaters
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answered on 24 Jun 2010, 12:20 AM
I suppose it is true that my biggest forms do always use TabStrip...

So if you're 'pointing the finger' <g> at VS08, do you know if this is improved in VS 2010?

Steve
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Dimitar Milushev
Telerik team
answered on 29 Jun 2010, 11:23 AM
Hello Steve,

I haven't done any 'scientific' tests with VS 2010, but I feel the performance is greatly improved and I prefer it over VS 2008 for my day-to-day work whenever possible. You can always download a trial version to test your scenario.

Greetings,
Dimitar Milushev
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Steve Bywaters
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T. Tsonev
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Steve Bywaters
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Dimitar Milushev
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