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AMD R600 Gallium3D Performance Changes Found On Mesa 9.3

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  • AMD R600 Gallium3D Performance Changes Found On Mesa 9.3

    Phoronix: AMD R600 Gallium3D Performance Changes Found On Mesa 9.3

    While there's at least another month left until the release of Mesa 9.3 / Mesa 10.0, for the mature Radeon R600 Gallium3D there are already a number of performance changes -- for both good and bad -- that can be spotted in running the latest code. Here's some benchmarks showing some of the performance changes over Mesa 9.2.1 stable for a Radeon HD 4000 series GPU on the open-source AMD Linux GPU driver.

    http://www.phoronix.com/vr.php?view=19173

  • #2
    One of the reasons for this regression might be this bug:

    https://bugs.freedesktop.org/show_bug.cgi?id=68451

    The solution to which was to revert the performance-enhancing cache-flushing patch. Details here:

    http://cgit.freedesktop.org/mesa/mes...c1f0cd823a0431

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