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Gallium3D's "Heads-Up Display" Gets Some Early Love

Mesa

Published on 04 April 2013 01:04 AM EDT
Written by Michael Larabel in Mesa
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The Gallium3D HUD that makes it very easy to show various driver/hardware related real-time performance metrics on a heads-up display drawn over OpenGL applications, has already received a few improvements.

In late March I wrote about the Gallium3D Heads-Up Display developed by Marek Olšák. This work by the famed independent Mesa contributor draws over any OpenGL window a "HUD" with various real-time performance information. Among the shown information is the real-time frame-rate, CPU load, number of pixels rendered, and more. With Mesa Git master, this HUD is rendered for any OpenGL window when the "GALLIUM_HUD" environment variable is set.

Some of the newly committed work to the HUD includes:

- Support for querying pipeline statistics. This work was done by Nouveau's Christoph Bumiller. The exposed pipeline statistics names are ia-vertices, ia-primitives, vs-invocations, gs-invocations, gs-primitives, clipper-invocations, clipper-primitives-generated, ps-invocations, hs-invocations, ds-invocations, and cs-invocations. (Per this commit.)

- VMware's "SVGA" virtual Gallium3D driver now supports queries to show the number of draw calls and the number of fallbacks. The fallback count shows the number of drawing calls that had to resort to using Gallium3D's "draw" module.

- VMware's driver now also handles showing the amount of used memory via the Gallium3D Heads-Up Display.

About The Author
Michael Larabel is the principal author of Phoronix.com and founded the web-site in 2004 with a focus on enriching the Linux hardware experience and being the largest web-site devoted to Linux hardware reviews, particularly for products relevant to Linux gamers and enthusiasts but also commonly reviewing servers/workstations and embedded Linux devices. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics hardware drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated testing software. He can be followed via and or contacted via .
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