[Qt-creator] debugging VS steps: 30 seconds

[Boy Lenssen]

Hi, I still hadn't been able to solve this problem. Also turning
debugging helpers off doesn't make it faster. My next step is to try it
on a colleague's system to see if it seems to be working correctly
there...

 

I've been building latest git repositories and tried the new release
1.2.1 today... 

 

________________________________

From: Boy Lenssen [mailto:Boy.Lenssen at esaote.nl] 
Sent: donderdag 9 juli 2009 10:11
To: qt-creator at trolltech.com
Subject: Re: [Qt-creator] debugging VS steps: 30 seconds

 

Ok, thanks for the information!

 

You mean 'turning the debugging helpers off' or 'tuning the debugging
helpers'?

 

I guess the first one, otherwise I would like to know how to tune them
;)

 

________________________________

From: Friedemann Kleint [mailto:Friedemann.Kleint at nokia.com] 
Sent: donderdag 9 juli 2009 9:57
To: qt-creator at trolltech.com
Subject: Re: [Qt-creator] debugging VS steps: 30 seconds

 

Hi,

> I said before that I had problems with seeing Qt types values, that
seems
> to be solved now. But I still have the problem that every step (or
when I
> hit a breakpoint) the whole program hangs for about 30 seconds.
>
> It worked faster before. I'm not sure if it is just me (and I need to
> reinstall my system or something :s ) or that this is normal for now
and
> work-in-progress. Do other people have this issue?

No, the system is not (necessarily) to blame here....technically, this
phenomenon is caused by the debugger helpers hitting on an uninitialized
variable. For example:

QString s1 = "foo";
<breakpoint> fiddle(s1);
QString s2 = "bar";

At the breakpoint, the debugger already sees s2 in the stack frame and
tries to display it using the Debugger helpers. As it is not yet
initialized, the helper can cause memory access violations, which make
it slow (particularly with CDB).

We are working on the issue, but have not really found a good solution
yet.
Turning the debugger helpers will always make it faster.

Regards.
Friedemann
-- 
Friedemann Kleint
Nokia, Qt Software

-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.qt-project.org/pipermail/qt-creator-old/attachments/20090714/28421ca6/attachment.html