[Qt-interest] Signal/Slot model is suitable for GUI applications but it isn't for console applications

[Valeriy Portnyagin]

before continue, I didn't make any tests but my colleague made some tests 
with a work of signals/slots and the call of virtual function. 
>From his words the difference was about 100 times. The call of virtual 
function was about 100 times faster than Signal/Slot mechanism!
Therefore I have asked this question here. 

regards,
Valery Portnyagin.



From:
"william.crocker at analog.com" <william.crocker at analog.com>
To:

Cc:
qt-interest at trolltech.com
Date:
23.08.2010 17:12
Subject:
Re: [Qt-interest] Signal/Slot model is suitable for GUI applications but 
it isn't for console applications




> 
> Could i say that Signal/Slot model is suitable for GUI applications but 
> it isn't  for console applications?
> I am developing a console application with many threads. I am using the 
> signals and slots between the threads.
> How much performance of my application will be worse at usage of 
> Signal/Slot model?
> 

1 - Do whatever you have to do to get your
     program working and giving the right answer
     as soon as possible.

2 - Create regression tests to preserve
     that right answer.

3 - If it is then too slow, profile and
     address the bottle necks.

With experience, next time you will see the
bottle necks coming.

Bill
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