The Current Performance Of Virgl3D, Future Plans
Written by Michael Larabel in Mesa on 1 October 2018 at 07:17 AM EDT. 11 Comments
MESA --
Last week at XDC2018 in Spain, Elie Tournier of Collabora presented on the current state of the Virgl effort for allowing OpenGL acceleration provided by a host's system within a QEMU/VirtIO-GPU virtual machine environment.

For the most part the information is what most Phoronix readers should be already familiar with if you stay up to date with our news coverage... In recent months Virgl has gone from only supporting OpenGL 3.0 to now supporting OpenGL 4.3 and OpenGL ES 3.2, assuming the host driver supports the necessary bits too. The OpenGL ES support has required some workarounds to get it working.

One of the interesting bits shared was the current state of the performance, which is based on this mailing list post from September beginning to explore the performance:


It's better than no hardware acceleration, but any GL/GLES intensive workload will generally strain Virgl. Besides improving the performance, other plans for this project include addressing current Piglit and conformance test suite failures, better security, and coherent memory support.

There is also the work-in-progress Vulkan support for Virgl started via this year's Google Summer of Code but that is currently in a very early state.

Tournier's slide deck from XDC2018 can be viewed here (PDF).
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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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