[Qt-creator] initializing dumpers

Friedemann Kleint Friedemann.Kleint at nokia.com
Thu Nov 12 14:30:25 CET 2009


Hi,

> Using the released version, I can start debugging immediately when hitting
>  a breakpoint, when using my own build, I have to wait for about 20 to 30
>  seconds and it says ‘initializing dumpers’. How come this takes so long?

Hmm, there should be no difference between released and custom-built versions 
(using the same debugger, debugging helpers activated in 
Options/Debugger/Debugging helpers). The Debugging helpers are there to 
display Qt's and some STL data types in a nice way. Turning them off makes 
debugging faster, but you will only see the contents of string types.

>  The user interface is also frozen at that time (well, it doesn’t respond,
>  there is a blinking cursor).
> It takes about 20 to 30 seconds on our main project, smaller projects are
>  much faster (2 seconds or so).

It is true that some things in the Windows debugger scale badly with 
application size, for example, the Debugging Helper initialization or thread 
switching. As far as the Debugging Helpers are concerned, we are looking for 
alternatives in Qt Creator 2.0.

Regards,
Friedemann

-- 
Friedemann Kleint
Nokia, Qt Development Frameworks




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