[Qt-interest] Overhead considerations: QObject::startTimer(), QTimer, QBasicTimer

Pritam Ghanghas pritam_ghanghas at infosys.com
Tue Sep 13 13:54:04 CEST 2011


Hi All,

I need to use a lot of timers in my application. There are three
approaches to timer in qt. I looked at documentation and couldn't 
anything that compares their performance or overhead figures.


QObject::startTimer(), QBasicTimer look very similar in functionality.
QTimer is easy and neat to use but comes with QObject overhead. I was
wondering "how much is this overhead? and are there other overheads to
using QTimer instead of the other two?" 


Thanks,
Pritam


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