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Graphics: Linux DRM and Mesa

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Graphics/Benchmarks
  • Intel Linux Graphics Driver Exploring Another Small Power-Savings Optimization

    A new patch-set proposed by one of the open-source Intel Linux graphics driver developers would allow power-savings under load of roughly up to 3%.

    The new Intel "i915" Linux DRM driver patches by Ankit Navik allow for the dynamic, context-aware re-configuration of the EU/Slice/Sub-slice controls.

    At present the Intel DRM driver only configures the execution unit / slice / sub-slice controls at context creation time, but these new patches re-configure the EUs at run-time depending upon how busy the particular graphics application is by the number of commands being submitted by the app to the kernel.

  • Mesa Gets Patches For EXT_multisampled_render_to_texture, Freedreno A6xx MSAA

    Wayland founder Kristian Høgsberg Kristensen who has been on Google's Chrome OS graphics team the past few years is continuing to help advance the open-source Qualcomm Adreno graphics support.

    Among other recent MSM/Freedreno contributions by Kristian, his latest patch series plumbs in support to core Mesa/Gallium3D for the EXT_multisampled_render_to_texture OpenGL extension and also wires in Adreno A6xx series for multi-sample anti-aliasing (MSAA).

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Linux 5.2 + Mesa 19.2 Performance With Polaris/Vega/Vega20 vs. NVIDIA On Ubuntu 19.04

With last week having delivered fresh benchmarks of the mid-range NVIDIA/AMD graphics cards using the very latest drivers, particularly the in-development Linux 5.2 and Mesa 19.2 components with the Radeon graphics cards tested, here is a similar comparison when moving up the spectrum and focusing on the higher-end graphics cards. Here's a look at how the RX 590, RX Vega 56, RX Vega 64, and Radeon VII are performing with the newest open-source AMD driver code compared to the NVIDIA Turing line-up backed by their latest binary driver. While next month will be Radeon RX 5700 series Linux benchmarking using the newest code (DRM-Next / Linux 5.3), this article is offering a fresh look at how the Linux 5.2 kernel performance is shaping up on the higher-end graphics cards as complementary to last week's numbers. The four Radeon cards tested were using the Linux 5.2 Git kernel and Mesa 19.2-devel using the Oibaf PPA. The NVIDIA Pascal and Turing cards benchmarked were using their latest driver available, version 430.26. Read more