Memory Leaks

[Lenny]

Is there anything in Visual Basic that can be done to solve this persistent problem in so many vb programs?

Perhaps some function that serves the same purpose as garbage collect in Java?  Something that could clear values in memory that no longer have a pointer?

[MyndFyre]

A Garbage Collector isn't a language feature, it's a runtime feature.  People need to remember that Java isn't only a language, but a platform.  It might be dependent on other platforms, but it is still one in its own right.  People call Novell a Network Operating System (NOS), but it doesn't run on its own.

However, I recommend you upgrade to VB .NET.  You do get implicit garbage collection -- no extra work required.  This is based on the .NET Platform though -- it is not a part of VB 6 or older.

[Grok]

Is there anything in Visual Basic that can be done to solve this persistent problem in so many vb programs?

Perhaps some function that serves the same purpose as garbage collect in Java?  Something that could clear values in memory that no longer have a pointer?

VB6 Memory Leaks?  Do tell!  Show me how you are creating these.

[Lenny]

After a long period of running my VB programs, they seem to build up more and more memory usage...Much faster than any other non vb programs....

I'm not storing any variables that consistently get larger and larger as time goes by, I assumed the large usage was due to storing values that are no longer used.....

[Tuberload]

After a long period of running my VB programs, they seem to build up more and more memory usage...Much faster than any other non vb programs....

I'm not storing any variables that consistently get larger and larger as time goes by, I assumed the large usage was due to storing values that are no longer used.....

Do you ever clear the rtb that stores the data recieved from battle.net? This was the main reason my bot took up so much memory. (When I programmed in VB that is)

[Lenny]

Actually, yes, my bot automatically removes the oldest lines of text once it reaches a user defined limit...

[Tuberload]

Actually, yes, my bot automatically removes the oldest lines of text once it reaches a user defined limit...

Geez, didn't mean to suggest something you're already doing. Next time I won't offer any help.

[Lenny]

That reply didnt seem hostile at all...
I was just mentioning it shouldnt be one of the causes of the growing memory usage...

[Grok]

That reply didnt seem hostile at all...
I was just mentioning it shouldnt be one of the causes of the growing memory usage...

So run it in debug mode and break out after a few hours to see what is taking up so much memory?  Try your local variables window, for starters.  I think it shows globals too.

[Tuberload]

That reply didnt seem hostile at all...
I was just mentioning it shouldnt be one of the causes of the growing memory usage...

I didn't say it sounded hostile, you just sounded offended I would even bring that up.

[Adron]

VB6 Memory Leaks?  Do tell!  Show me how you are creating these.

You can easily create memory leaks in VB. All you have to do is make some objects that reference each other and then drop your own references to them.

[iago]

hmm, incidentally, I'm going to move this to VB forum

[Telos]

Ive found that if youre optimizing your VB programs for memory usage encapsulating everything in classes is the best way to go but you incur a performance penalty for adding a layer of abstraction.  The other thing I do is to explicitly remove references to class objects when Im through this way I dont end up with looped objects as Adron described

[Grok]

VB6 Memory Leaks?  Do tell!  Show me how you are creating these.

You can easily create memory leaks in VB. All you have to do is make some objects that reference each other and then drop your own references to them.

What's so easy about it?

Code Select Expand

Dim objX As Object, objX1 As Object, objX2 As Object
Dim intMod2 As Integer
For lPos = 1 To 100
   Set objX = CreateObject("Project.Class")
   intMod2 = lPos Mod 2
   If intMod2 = 1 Then
       Set objX1 = objX
   Else
       Set objX2 = objX
       Set objX1.otherguy = objX2
       Set objX2.otherguy = objX1
   End If
Next lPos
Set objX1 = Nothing
Set objX2 = Nothing

You have to get pretty sloppy to do that?

[Eric]

After a long period of running my VB programs, they seem to build up more and more memory usage...Much faster than any other non vb programs....

I've ran my Visual Basic-made programs for weeks at a time without experiencing any problems.