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I tried 2, 4, 6, 8, and 10. 8 seemed to be the sweet spot across all Intel platforms. Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com> Reviewed-by: Matt Turner <mattst88@gmail.com> All Gen7+ platforms had similar results. (Ice Lake shown) total instructions in shared programs: 14736141 -> 14661140 (-0.51%) instructions in affected programs: 2272413 -> 2197412 (-3.30%) helped: 8416 HURT: 140 helped stats (abs) min: 1 max: 1152 x̄: 8.99 x̃: 6 helped stats (rel) min: 0.13% max: 42.55% x̄: 4.15% x̃: 3.20% HURT stats (abs) min: 1 max: 140 x̄: 4.73 x̃: 1 HURT stats (rel) min: 0.03% max: 3.44% x̄: 0.87% x̃: 0.60% 95% mean confidence interval for instructions value: -9.36 -8.17 95% mean confidence interval for instructions %-change: -4.14% -3.99% Instructions are helped. total cycles in shared programs: 231560416 -> 228585416 (-1.28%) cycles in affected programs: 126536021 -> 123561021 (-2.35%) helped: 7092 HURT: 1898 helped stats (abs) min: 1 max: 419320 x̄: 519.02 x̃: 159 helped stats (rel) min: <.01% max: 77.25% x̄: 13.52% x̃: 11.77% HURT stats (abs) min: 1 max: 14518 x̄: 371.91 x̃: 36 HURT stats (rel) min: <.01% max: 103.23% x̄: 5.92% x̃: 2.55% 95% mean confidence interval for cycles value: -514.34 -147.50 95% mean confidence interval for cycles %-change: -9.69% -9.14% Cycles are helped. total spills in shared programs: 5763 -> 5848 (1.47%) spills in affected programs: 1797 -> 1882 (4.73%) helped: 13 HURT: 13 total fills in shared programs: 17163 -> 16931 (-1.35%) fills in affected programs: 7214 -> 6982 (-3.22%) helped: 22 HURT: 19 total sends in shared programs: 730410 -> 730246 (-0.02%) sends in affected programs: 2705 -> 2541 (-6.06%) helped: 114 HURT: 0 helped stats (abs) min: 1 max: 4 x̄: 1.44 x̃: 1 helped stats (rel) min: 0.60% max: 20.00% x̄: 7.26% x̃: 5.88% 95% mean confidence interval for sends value: -1.55 -1.33 95% mean confidence interval for sends %-change: -7.90% -6.62% Sends are helped. LOST: 4 GAINED: 0 Sandy Bridge total instructions in shared programs: 10760511 -> 10724637 (-0.33%) instructions in affected programs: 961305 -> 925431 (-3.73%) helped: 3734 HURT: 110 helped stats (abs) min: 1 max: 151 x̄: 9.66 x̃: 8 helped stats (rel) min: 0.14% max: 41.21% x̄: 4.93% x̃: 3.95% HURT stats (abs) min: 1 max: 20 x̄: 1.68 x̃: 1 HURT stats (rel) min: 0.12% max: 5.41% x̄: 0.88% x̃: 0.52% 95% mean confidence interval for instructions value: -9.76 -8.91 95% mean confidence interval for instructions %-change: -4.90% -4.63% Instructions are helped. total cycles in shared programs: 153359411 -> 152991077 (-0.24%) cycles in affected programs: 11615401 -> 11247067 (-3.17%) helped: 2725 HURT: 1138 helped stats (abs) min: 1 max: 2844 x̄: 164.27 x̃: 80 helped stats (rel) min: 0.02% max: 48.60% x̄: 7.47% x̃: 3.91% HURT stats (abs) min: 1 max: 4351 x̄: 69.69 x̃: 25 HURT stats (rel) min: 0.02% max: 40.00% x̄: 3.39% x̃: 1.47% 95% mean confidence interval for cycles value: -103.18 -87.52 95% mean confidence interval for cycles %-change: -4.57% -3.97% Cycles are helped. total sends in shared programs: 584038 -> 583855 (-0.03%) sends in affected programs: 3512 -> 3329 (-5.21%) helped: 157 HURT: 0 helped stats (abs) min: 1 max: 5 x̄: 1.17 x̃: 1 helped stats (rel) min: 2.38% max: 25.00% x̄: 6.52% x̃: 6.06% 95% mean confidence interval for sends value: -1.26 -1.07 95% mean confidence interval for sends %-change: -7.17% -5.87% Sends are helped. LOST: 23 GAINED: 0 Iron Lake and GM45 had similar results. (Iron Lake shown) total instructions in shared programs: 8122617 -> 8111592 (-0.14%) instructions in affected programs: 380503 -> 369478 (-2.90%) helped: 912 HURT: 86 helped stats (abs) min: 1 max: 129 x̄: 12.19 x̃: 9 helped stats (rel) min: 0.30% max: 39.21% x̄: 3.69% x̃: 2.57% HURT stats (abs) min: 1 max: 2 x̄: 1.05 x̃: 1 HURT stats (rel) min: 0.12% max: 3.64% x̄: 0.54% x̃: 0.36% 95% mean confidence interval for instructions value: -12.00 -10.10 95% mean confidence interval for instructions %-change: -3.56% -3.10% Instructions are helped. total cycles in shared programs: 188509780 -> 188534398 (0.01%) cycles in affected programs: 7211542 -> 7236160 (0.34%) helped: 859 HURT: 132 helped stats (abs) min: 2 max: 690 x̄: 46.59 x̃: 16 helped stats (rel) min: 0.01% max: 26.76% x̄: 1.53% x̃: 0.33% HURT stats (abs) min: 2 max: 1592 x̄: 489.67 x̃: 618 HURT stats (rel) min: 0.03% max: 185.92% x̄: 23.35% x̃: 6.26% 95% mean confidence interval for cycles value: 9.58 40.10 95% mean confidence interval for cycles %-change: 0.65% 2.93% Cycles are HURT. |
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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.html <https://mesa3d.org/install.html>`_), but the recommended way is to use Meson (`docs/meson.html <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.html <https://mesa3d.org/bugs.html>`_). Contributing ------------ Contributions are welcome, and step-by-step instructions can be found in our documentation (`docs/submittingpatches.html <https://mesa3d.org/submittingpatches.html>`_). Note that Mesa uses email mailing-lists for patches submission, review and discussions.