vb6 to .NET conversion programs run slow??

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Matt Fury - 14 Jan 2004 15:03 GMT

I have a rather large VB6 program that I converted to .NET and finally
got running. Unfortunately the thing runs like a SLOTH. I am correct
in thinking that .NET programs that are still using vb6 compatibility
code will slow the thing down? Someone PLEASE tell me why my .NET
program runs a hell of a lot slower in .NET than it does in VB6?
Honestly that is quite disappointing because I was all ready to start
releasing my products in .NET.

Or... does this mean its revealing more black and blue marks in my
previous code? Just curious, overall the code is pretty well written.
Could be more optmized as all code can.

Any suggestions, improvments, etc?

Thanks.
Code on!

-Matt

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Herfried K. Wagner [MVP] - 14 Jan 2004 15:38 GMT

* matty@what-the.net (Matt Fury) scripsit:

> I have a rather large VB6 program that I converted to .NET and finally
> got running. Unfortunately the thing runs like a SLOTH. I am correct
> in thinking that .NET programs that are still using vb6 compatibility
> code will slow the thing down? Someone PLEASE tell me why my .NET

VB6 "best practice" <> VB.NET "best practice".

> program runs a hell of a lot slower in .NET than it does in VB6?
> Honestly that is quite disappointing because I was all ready to start
> releasing my products in .NET.

This depends on what you use in your application. What's "slower"? In
general, VB.NET applications are not slower than VB6 applications.

Have a look at this tool:

<http://msdn.microsoft.com/vbasic/downloads/Codeadvisor/>

Signature

Herfried K. Wagner [MVP]
<http://www.mvps.org/dotnet

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Matt Fury - 14 Jan 2004 16:18 GMT

>> VB6 "best practice" <> VB.NET "best practice".

Yes, I know they are two completely differently languages.
VB.NET is pretty much object oriented now.

>>This depends on what you use in your application. What's "slower"? In

general, VB.NET applications are not slower than VB6 applications.

Slower is this sense means it takes forever to load, screen refreshes on
forms are HORRIBLE, and it takes up 5x as much memory now. The memory
thing could be due to slacky coding but it definitely runs way better in
VB6. I know .NET is compiled now unlike vb6 but if I didn't know better
I would say its a runtime VM like Java.

>>Have a look at this tool:
>><http://msdn.microsoft.com/vbasic/downloads/Codeadvisor/>

Will do, thanks!

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vb6 to .NET conversion programs run slow??

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