Application too slow
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Hi all,
I'm testing my application and is too slow. I've put some breakpoints on my code and I've seen that "QApplication app(argc, argv);" line spends too much time.
Is there any way to reduce this time?
Thanks,
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How much is: too slow?
what is your platform? embedded is not clearly defined, which processor etc...
Do you use parameters?A bit more information could help.
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My environment:
Desktop Machine
- Windows XP SP3
- Visual Studio 2008 Professional
- Qt 4.7.1 for WinCE
- Add-in plugin
- Intel(R) Core(TM)2 Duo CPU E6550 @2.33GHz, 3,23 GB of RAM
Device Machine
- Windows Mobile 6.5 Professional
- Casio IT-800 --> Marvell® PXA320 624MHz
I compile, build and deploy with Visual Studio and I didn't add any parameter.... When I'm debugging the line “QApplication app(argc, argv);” takes about 15 seconds. I think it is too time.
Thank you
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Hi all,
I've found this link "http://bugreports.qt.nokia.com/browse/QTBUG-11309?page=com.atlassian.streams.streams-jira-plugin:activity-stream-issue-tab#issue-tabs":http://bugreports.qt.nokia.com/browse/QTBUG-11309?page=com.atlassian.streams.streams-jira-plugin:activity-stream-issue-tab#issue-tabs. It seems that the problem is fixed on Qt 4.7 but I get it on Qt 4.7.1 for WinCE.
I don't know what is the cause... neither add a comment in link above...
Any idea?
Thanks!
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Hi XerXi,
did you check, whether the code is changed in 4.7.1 that is stated in the bug report?
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I'm not familiar with the bug report. I've searched "slow start application" filtering with my Qt version, and a lot of issues have been listed, but I don't see any similiar to mine....
I'm frustated...
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I meant, did you search the Qt source code for the fixes, meantioned in the bug fix?
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I found this:
@Description
Programs starting is vary slow.
Debugging result is that very long delay happens in file qapplication_win.cpp
function initializeMultitouch_sys()
line 4023: iInkTablets->get_Count(&count);@But, how is it useful for me?