[Qt-interest] Qt 4.6.3 QApplication constructor (Windows 7) EXTREMELY slow?

Paul Miller paul at fxtech.com
Thu Oct 7 15:43:42 CEST 2010


On 10/7/2010 2:47 AM, Kai Koehne wrote:
> On 10/7/2010 9:23 AM, ext Harri Pasanen wrote:
>> Have you ruled out network problems?    I've often seem similar "inexplicable"
>> behavior when some network path (remote share) is being accessed.
>>
>> For instance python startup from a network share is often a no-no, as it
>> crawls through the python path.  Qt plugin paths could well trigger the same
>> symptoms.
>
> http://bugreports.qt.nokia.com/browse/QTBUG-10106 might also be the
> issue if network access is involved.

Interesting, but my code itself is not doing any network stuff. It's the 
QApplication() constructor that is taking this long.

Does QApplication() in 4.6.x do some basic network junk during 
initialization that 4.5.x didn't? 4.5 appears to be unaffected.




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