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ad6e53da5c
This is known broken code, and the fix is highly nontrivial. It isn't doing terribly much for perf, so just rip off the band-aid. Prevents a dEQP regression, and likely fixes bugs in real apps too. total instructions in shared programs: 96640 -> 97089 (0.46%) instructions in affected programs: 27831 -> 28280 (1.61%) helped: 33 HURT: 301 helped stats (abs) min: 1 max: 6 x̄: 3.64 x̃: 5 helped stats (rel) min: 1.96% max: 10.00% x̄: 6.48% x̃: 7.94% HURT stats (abs) min: 1 max: 18 x̄: 1.89 x̃: 1 HURT stats (rel) min: 0.46% max: 15.00% x̄: 3.17% x̃: 2.38% 95% mean confidence interval for instructions value: 1.09 1.59 95% mean confidence interval for instructions %-change: 1.80% 2.63% Instructions are HURT. total bundles in shared programs: 45615 -> 45612 (<.01%) bundles in affected programs: 11257 -> 11254 (-0.03%) helped: 121 HURT: 146 helped stats (abs) min: 1 max: 7 x̄: 2.34 x̃: 1 helped stats (rel) min: 1.22% max: 23.33% x̄: 7.85% x̃: 5.26% HURT stats (abs) min: 1 max: 17 x̄: 1.92 x̃: 2 HURT stats (rel) min: 0.42% max: 25.00% x̄: 5.17% x̃: 3.85% 95% mean confidence interval for bundles value: -0.34 0.31 95% mean confidence interval for bundles %-change: -1.69% 0.23% Inconclusive result (value mean confidence interval includes 0). total quadwords in shared programs: 76662 -> 77275 (0.80%) quadwords in affected programs: 20148 -> 20761 (3.04%) helped: 28 HURT: 275 helped stats (abs) min: 1 max: 4 x̄: 1.54 x̃: 1 helped stats (rel) min: 0.43% max: 25.00% x̄: 4.89% x̃: 2.50% HURT stats (abs) min: 1 max: 12 x̄: 2.39 x̃: 2 HURT stats (rel) min: 0.51% max: 28.57% x̄: 5.18% x̃: 4.26% 95% mean confidence interval for quadwords value: 1.80 2.25 95% mean confidence interval for quadwords %-change: 3.64% 4.86% Quadwords are HURT. total registers in shared programs: 7078 -> 7081 (0.04%) registers in affected programs: 1028 -> 1031 (0.29%) helped: 62 HURT: 70 helped stats (abs) min: 1 max: 2 x̄: 1.11 x̃: 1 helped stats (rel) min: 8.33% max: 50.00% x̄: 15.03% x̃: 12.50% HURT stats (abs) min: 1 max: 2 x̄: 1.03 x̃: 1 HURT stats (rel) min: 8.33% max: 66.67% x̄: 20.13% x̃: 11.25% 95% mean confidence interval for registers value: -0.17 0.21 95% mean confidence interval for registers %-change: -0.14% 7.38% Inconclusive result (value mean confidence interval includes 0). total threads in shared programs: 5032 -> 5036 (0.08%) threads in affected programs: 31 -> 35 (12.90%) helped: 12 HURT: 6 helped stats (abs) min: 1 max: 2 x̄: 1.08 x̃: 1 helped stats (rel) min: 100.00% max: 100.00% x̄: 100.00% x̃: 100.00% HURT stats (abs) min: 1 max: 2 x̄: 1.50 x̃: 1 HURT stats (rel) min: 50.00% max: 50.00% x̄: 50.00% x̃: 50.00% 95% mean confidence interval for threads value: -0.43 0.87 95% mean confidence interval for threads %-change: 13.82% 86.18% Inconclusive result (value mean confidence interval includes 0). total loops in shared programs: 19 -> 19 (0.00%) loops in affected programs: 0 -> 0 helped: 0 HURT: 0 total spills in shared programs: 0 -> 2 spills in affected programs: 0 -> 2 helped: 0 HURT: 1 total fills in shared programs: 0 -> 15 fills in affected programs: 0 -> 15 helped: 0 HURT: 1 Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/10652> |
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`Mesa <https://mesa3d.org>`_ - The 3D Graphics Library ====================================================== Source ------ This repository lives at https://gitlab.freedesktop.org/mesa/mesa. Other repositories are likely forks, and code found there is not supported. Build & install --------------- You can find more information in our documentation (`docs/install.rst <https://mesa3d.org/install.html>`_), but the recommended way is to use Meson (`docs/meson.rst <https://mesa3d.org/meson.html>`_): .. code-block:: sh $ mkdir build $ cd build $ meson .. $ sudo ninja install Support ------- Many Mesa devs hang on IRC; if you're not sure which channel is appropriate, you should ask your question on `Freenode's #dri-devel <irc://chat.freenode.net#dri-devel>`_, someone will redirect you if necessary. Remember that not everyone is in the same timezone as you, so it might take a while before someone qualified sees your question. To figure out who you're talking to, or which nick to ping for your question, check out `Who's Who on IRC <https://dri.freedesktop.org/wiki/WhosWho/>`_. The next best option is to ask your question in an email to the mailing lists: `mesa-dev\@lists.freedesktop.org <https://lists.freedesktop.org/mailman/listinfo/mesa-dev>`_ Bug reports ----------- If you think something isn't working properly, please file a bug report (`docs/bugs.rst <https://mesa3d.org/bugs.html>`_). Contributing ------------ Contributions are welcome, and step-by-step instructions can be found in our documentation (`docs/submittingpatches.rst <https://mesa3d.org/submittingpatches.html>`_). Note that Mesa uses gitlab for patches submission, review and discussions.