My C# app very slow on Vista

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Katit - 10 Dec 2007 21:30 GMT

Hi!

I installed my app on clients Vista machine. It's very slow when it
does database update and TCP messaging. I'm not sure which operation
slow.

Is there any know-how on what could be wrong? How would you approach
troubleshooting?

I can place some logging, this way I can figure what exactly slow. But
how I fix it then?

TIA

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Charles Calvert - 10 Dec 2007 22:47 GMT

>I installed my app on clients Vista machine. It's very slow when it
>does database update and TCP messaging. I'm not sure which operation
[quoted text clipped - 5 lines]
>I can place some logging, this way I can figure what exactly slow. But
>how I fix it then?

Don't worry about how until you know what. If possible, use a
profiler to identify the exact function that using so many CPU cycles.
You can then analyze it to figure out what the problem is.

Signature

Charles Calvert | Software Design/Development
Celtic Wolf, Inc. | Project Management
http://www.celticwolf.com/ | Technical Writing
(703) 580-0210 | Research

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Cuong Tong - 10 Dec 2007 22:57 GMT

before start running the profiler, have you tried this

http://www.neoblog.co.uk/?p=13

Hello Charles,

>> I installed my app on clients Vista machine. It's very slow when it
>> does database update and TCP messaging. I'm not sure which operation
[quoted text clipped - 9 lines]
> profiler to identify the exact function that using so many CPU cycles.
> You can then analyze it to figure out what the problem is.

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Katit - 11 Dec 2007 18:42 GMT

Tried that - no help. It's slow on opening socket. "Slow" is like 3-4
seconds compare to less then a second on other PC's

> before start running the profiler, have you tried this
>
> http://www.neoblog.co.uk/?p=13
>
> Hello Charles,

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Charles Calvert - 11 Feb 2008 20:07 GMT

>Tried that - no help. It's slow on opening socket. "Slow" is like 3-4
>seconds compare to less then a second on other PC's

Sorry, been out of the group for a while.

I'd start googling this issue, as it may be related to the IP stack
changes in Vista. You should also try to get a Vista test box and see
if you can replicate the problem there.

Signature

Charles Calvert | Software Design/Development
Celtic Wolf, Inc. | Project Management
http://www.celticwolf.com/ | Technical Writing
(703) 580-0210 | Research

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My C# app very slow on Vista

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