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Galil memory leak?

Question asked by PascalAubry on Mar 12, 2015
Latest reply on Mar 12, 2015 by PascalAubry

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Dear all,

Does any of you have experience with galil motor control? I am using the galil .NET library within VEE as part of an antenna measurement software and the memory usage in task manager keeps increasing until the program stops responding after a couple of hours. I don’t have this problem using visual C# with the same .NET. Could it be caused by some dodgy memory management between VEE and .NET? I have no idea how it’s done. I’d rather not have to re-write the whole automation software in C#. I’d appreciate any pointers towards a solution.

Kind regards,
Pascal Aubry

p.s. using VEE Pro 9.3 under Windows 7

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Mike Mar 12, 2015 7:13 AM

Unfortunately these things can be difficult and time-consuming to find and fix. My approach would be to simplify as much as possible to try to locate which call or object is causing the problem. If you can create a program with a handful of VEE objects which demonstrate the leak, there is a good chance you'll be able to either spot the problem or at least come up with a work-around, such as unloading a library and re-loading it every now and then.

I'm not familiar with the .NET control you are using but if there is good documentation it would be worth reviewing that, especially in respect of object handling - for example there might be .NET objects you create as part of the process but do not dispose of them properly and VEE tends to hold on to references ( which in turn will keep the objects in memory ).

HTH

Edited by: Mike on Mar 12, 2015 8:12 AM

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PascalAubry @ Mike on Mar 12, 2015 8:33 AM

Thanks a lot for your suggestions Mike, much appreciated. I'll try them out. I'm suspecting it has something to do with an "on record" event handler.

Regards,
Pascal

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Mike Mar 12, 2015 7:13 AM
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Unfortunately these things can be difficult and time-consuming to find and fix. My approach would be to simplify as much as possible to try to locate which call or object is causing the problem. If you can create a program with a handful of VEE objects which demonstrate the leak, there is a good chance you'll be able to either spot the problem or at least come up with a work-around, such as unloading a library and re-loading it every now and then.

I'm not familiar with the .NET control you are using but if there is good documentation it would be worth reviewing that, especially in respect of object handling - for example there might be .NET objects you create as part of the process but do not dispose of them properly and VEE tends to hold on to references ( which in turn will keep the objects in memory ).

HTH

Edited by: Mike on Mar 12, 2015 8:12 AM
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- PascalAubry @ Mike on Mar 12, 2015 8:33 AM
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  Thanks a lot for your suggestions Mike, much appreciated. I'll try them out. I'm suspecting it has something to do with an "on record" event handler.
  
  Regards,
  Pascal
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Galil memory leak?

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