[MeeGo-dev] MeeGo Tablet 1.2 system not responses at Qt applicaiton exit
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. This problem only happens on Oaktrail HW platform and on every Meego Tablet 1.2 system. This is the one I've been using: http://repo.meego.com/MeeGo/builds/1.2.0.90/1.2.0.90.6.20110628.2/images/meego-tablet-ia32-oaktrail/ Does anyone have idea about this? Thanks a lot! -Dong ___ MeeGo-dev mailing list MeeGo-dev@meego.com http://lists.meego.com/listinfo/meego-dev http://wiki.meego.com/Mailing_list_guidelines
Re: [MeeGo-dev] MeeGo Tablet 1.2 system not responses at Qt applicaiton exit
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... ___ MeeGo-dev mailing list MeeGo-dev@meego.com http://lists.meego.com/listinfo/meego-dev http://wiki.meego.com/Mailing_list_guidelines