On 7/31/2011 7:58 PM, Dong Li wrote:
Hi list,
I've got a problem while programming with Qt on Intel Oaktrail platform.
In order to improve the application performance, I took use of the Qt
"raster" backend [void QApplication::setGraphicsSystem ( const QString
& system )], and the proformance was really improved a lot in
comparison with native backend.
However, the problem is that the entire system will not response at
applicaiton exit, and afterwards, system would recover in 10 or 20
seconds.
I monitored the CPU usage during that time, and found Xorg and
application itself were at 90% above.
any chance of installing enough debuginfo rpms and then doing a
perf record -a -g sleep 10
perf report
for the duration of the app exiting?
that will show you which functions/libraries you're spending cpu time...
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