Monthly Archives: June 2011

Frame Timing: the Simple Way

June 30, 2011 – 6:03 pm

This is a follow-up to my post from last week; I wanted to look into why the different methods of frame timing looked different from each other. As a starting point, we can graph the position position of a moving object (like the ball) as displayed to the user versus it’s theoretical position (gray line): […]

By Owen | Posted in Coding | Comments (2)

What to do if you can’t do 60fps?

June 22, 2011 – 5:58 pm

I’ve been working recently on figuring out application to compositor synchronization. One aspect of that is the timing information does the compositor need to send back to the application and how should the application use it. In the case where everything is lightly loaded and we can hit 60fps, it’s pretty obvious what we want […]

By Owen | Posted in Coding | Comments (21)

Benchmarking compositor performance

June 13, 2011 – 4:34 pm

Recently Phoronix did an article about performance under different compositing and non-compositing window managers. GNOME Shell didn’t do that well, so lots of people pointed it out to me. Clearly there was a lot of work put into making measurements for the article, but what is measured is a wide range of 3D fullscreen games […]

By Owen | Posted in Uncategorized | Comments (19)