My vsync is enabled on my KDE control panel and here is my glxinfo output:
name of display: :0
display: :0 screen: 0
direct rendering: Yes
server glx vendor string: ATI
server glx version string: 1.4
server glx extensions:
GLX_ARB_multisample, GLX_EXT_import_context,
GLX_EXT_texture_from_pixm
On 09/03/2012 09:42 AM, ext Samuel Rødal wrote:
> On 08/31/2012 02:05 AM, ext David Boosalis wrote:
>> I download the latest beta version of Qt 5.0 onto my Linux box (Kubuntu
>> 12.04) . For a beta it looks real good, but one thing I found
>> concerning was the performance. I mean even running th
On 08/31/2012 02:05 AM, ext David Boosalis wrote:
> I download the latest beta version of Qt 5.0 onto my Linux box (Kubuntu
> 12.04) . For a beta it looks real good, but one thing I found
> concerning was the performance. I mean even running the demo "samegame"
> take over 98% of my cpu. Being th
I'm seeing the same constantly busy CPU on Windows XP with a NVIDIA
GeForce GT 220 and driver version 301.42. Changing the vertical sync
setting int the NVIDIA Control Panel has no effect. I'm using the Qt
5.0 Beta 1 binaries from http://releases.qt-project.org/qt5.0/beta1/.
Bradley
> Any thoughts on this ?
Perhaps worth checking that you have vsync enabled on graphics driver's
settings. Scenegraph leans on vsync, so potentially the animation loop
would run quite wild if there was no binding to actual display refresh
rate.
Hth,
Markus
I've observed the same with Nvidia and the samegame, but I've seen the same
process eat just a few percent two months ago. I'm confident that it's just a
plain old bug instead of a fundamental problem with Qt 5's architecture :)
Simon
--
Sendt fra min Nokia N901.09.12 08:05 skrev ext David Boos
Interesting that there are no comments on this. Does it mean that only a
few of us are seeing poor performance due to some driver issue, or that
people aren't concerned with the performance. But wasn't better
performance the primary motivation for Qt 5 ?
On Fri, Aug 31, 2012 at 11:26 AM, Jeff T
> it takes 100% CPU when the game is sitting idle.
What does the poor man's profiler* say is going on?
Regards,
Rob.
* http://poormansprofiler.org/
On 31 August 2012 19:26, Jeff Tranter wrote:
> I see the same thing with the Qt 5 beta 1 installer binary on Ubuntu
> Linux 12.04. When running
>
I see the same thing with the Qt 5 beta 1 installer binary on Ubuntu
Linux 12.04. When running
Qt5.0.0beta1/Desktop/Qt/5.0.0-beta1/gcc/examples/qtdeclarative/demos/samegame/samegame
it takes 100% CPU when the game is sitting idle. The machine it is
running on has Nvidia's OpenGL driver.
On 12
Thank you for the reply.
IN anser to your questions, I built Qt 5 with no configure options other
then prefix and used the samegame found in
"Src/Qt/5.0.0-beta1/qtdeclarative/examples/demos/samegame"
ldd on the executable reports:
ldd
./samegame
linux-vdso.so.1 =>
(0x7fff5cf23000)
On quinta-feira, 30 de agosto de 2012 17.05.07, David Boosalis wrote:
> I download the latest beta version of Qt 5.0 onto my Linux box (Kubuntu
> 12.04) . For a beta it looks real good, but one thing I found concerning
> was the performance. I mean even running the demo "samegame" take over 98%
>
I download the latest beta version of Qt 5.0 onto my Linux box (Kubuntu
12.04) . For a beta it looks real good, but one thing I found concerning
was the performance. I mean even running the demo "samegame" take over 98%
of my cpu. Being that it is only the first beta release I am sure there is
pl
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