Intel vs. Modesetting X.Org DDX Performance Impact
Written by Michael Larabel in Display Drivers on 11 January 2017. Page 4 of 4. 27 Comments

The JxRenderMark data also shows that the xf86-video-intel driver is still usually faster with these synthetic X11 2D benchmarks.

The same goes for GTK2's GtkPerf, but again, keep in mind many tool-kits have been shifting to just using OpenGL directly and in the (X)Wayland space GLAMOR is forced to be used regardless without any DDX-specific driver. Also keep in mind that Ubuntu is currently using X.Org Server 1.18.4 where as the newly released X.Org Server 1.19.0 did see more GLAMOR optimizations during its release cycle.

The most important data from today's tests and similar to our other recent tests is that for 3D/OpenGL workloads, xf86-video-modesetting doesn't lead to decreased performance. In terms of other usability differences between these two DDX drivers, see these forum comments for more details on functional differences.

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Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 20,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter or contacted via MichaelLarabel.com.


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