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Pre-RA scheduling can create more opportunities for CMOD propagation. This takes advantage of that. It may be worth doing this again in post-RA scheduling, but there are additional problems there. I'm a little torn about the use of the OPT() macro. On the one hand, it would be confusing to see dumps from INTEL_DEBUG=optimizer that don't match the final output. On the other hand, since register allocation can fail, the same pass can be run multiple times. Each time one or both passes might or might not make progress. This would also lead to incongruous, confusing output. Ice Lake total instructions in shared programs: 14549808 -> 14548529 (<.01%) instructions in affected programs: 231985 -> 230706 (-0.55%) helped: 632 HURT: 0 helped stats (abs) min: 1 max: 32 x̄: 2.02 x̃: 1 helped stats (rel) min: 0.05% max: 2.56% x̄: 0.57% x̃: 0.41% 95% mean confidence interval for instructions value: -2.25 -1.79 95% mean confidence interval for instructions %-change: -0.61% -0.54% Instructions are helped. total cycles in shared programs: 203770850 -> 203776599 (<.01%) cycles in affected programs: 2495653 -> 2501402 (0.23%) helped: 282 HURT: 197 helped stats (abs) min: 1 max: 242 x̄: 20.37 x̃: 16 helped stats (rel) min: <.01% max: 11.65% x̄: 0.91% x̃: 0.64% HURT stats (abs) min: 2 max: 609 x̄: 58.35 x̃: 20 HURT stats (rel) min: <.01% max: 10.97% x̄: 1.35% x̃: 0.66% 95% mean confidence interval for cycles value: 5.27 18.73 95% mean confidence interval for cycles %-change: -0.16% 0.21% Inconclusive result (%-change mean confidence interval includes 0). LOST: 0 GAINED: 2 Skylake total instructions in shared programs: 13447708 -> 13446594 (<.01%) instructions in affected programs: 216813 -> 215699 (-0.51%) helped: 623 HURT: 0 helped stats (abs) min: 1 max: 32 x̄: 1.79 x̃: 1 helped stats (rel) min: 0.06% max: 2.86% x̄: 0.59% x̃: 0.42% 95% mean confidence interval for instructions value: -1.99 -1.59 95% mean confidence interval for instructions %-change: -0.63% -0.55% Instructions are helped. total cycles in shared programs: 193759224 -> 193762726 (<.01%) cycles in affected programs: 2540035 -> 2543537 (0.14%) helped: 249 HURT: 190 helped stats (abs) min: 2 max: 196 x̄: 16.67 x̃: 14 helped stats (rel) min: <.01% max: 4.71% x̄: 0.66% x̃: 0.62% HURT stats (abs) min: 2 max: 614 x̄: 40.27 x̃: 14 HURT stats (rel) min: 0.02% max: 5.78% x̄: 0.86% x̃: 0.37% 95% mean confidence interval for cycles value: 2.57 13.39 95% mean confidence interval for cycles %-change: -0.11% 0.11% Inconclusive result (%-change mean confidence interval includes 0). LOST: 0 GAINED: 1 Broadwell total instructions in shared programs: 13418631 -> 13417393 (<.01%) instructions in affected programs: 243192 -> 241954 (-0.51%) helped: 694 HURT: 0 helped stats (abs) min: 1 max: 31 x̄: 1.78 x̃: 1 helped stats (rel) min: 0.06% max: 2.86% x̄: 0.59% x̃: 0.44% 95% mean confidence interval for instructions value: -1.95 -1.62 95% mean confidence interval for instructions %-change: -0.62% -0.55% Instructions are helped. total cycles in shared programs: 200822940 -> 200829128 (<.01%) cycles in affected programs: 2128651 -> 2134839 (0.29%) helped: 251 HURT: 226 helped stats (abs) min: 1 max: 200 x̄: 14.32 x̃: 12 helped stats (rel) min: <.01% max: 3.56% x̄: 0.60% x̃: 0.50% HURT stats (abs) min: 2 max: 611 x̄: 43.28 x̃: 18 HURT stats (rel) min: 0.02% max: 7.03% x̄: 0.93% x̃: 0.54% 95% mean confidence interval for cycles value: 7.44 18.50 95% mean confidence interval for cycles %-change: 0.02% 0.23% Cycles are HURT. Haswell and Ivy Bridge had similar results. (Haswell shown) total instructions in shared programs: 11569710 -> 11568829 (<.01%) instructions in affected programs: 147862 -> 146981 (-0.60%) helped: 487 HURT: 0 helped stats (abs) min: 1 max: 34 x̄: 1.81 x̃: 1 helped stats (rel) min: 0.12% max: 4.75% x̄: 0.57% x̃: 0.45% 95% mean confidence interval for instructions value: -2.03 -1.59 95% mean confidence interval for instructions %-change: -0.61% -0.54% Instructions are helped. total cycles in shared programs: 187079425 -> 187079437 (<.01%) cycles in affected programs: 1088494 -> 1088506 (<.01%) helped: 234 HURT: 124 helped stats (abs) min: 2 max: 282 x̄: 22.66 x̃: 16 helped stats (rel) min: 0.03% max: 7.88% x̄: 0.93% x̃: 0.75% HURT stats (abs) min: 1 max: 276 x̄: 42.86 x̃: 20 HURT stats (rel) min: 0.03% max: 6.70% x̄: 0.99% x̃: 0.53% 95% mean confidence interval for cycles value: -5.54 5.61 95% mean confidence interval for cycles %-change: -0.41% -0.11% Inconclusive result (value mean confidence interval includes 0). total spills in shared programs: 7746 -> 7740 (-0.08%) spills in affected programs: 6 -> 0 helped: 1 HURT: 0 total fills in shared programs: 6264 -> 6258 (-0.10%) fills in affected programs: 6 -> 0 helped: 1 HURT: 0 Sandy Bridge total instructions in shared programs: 10688576 -> 10688177 (<.01%) instructions in affected programs: 137875 -> 137476 (-0.29%) helped: 358 HURT: 0 helped stats (abs) min: 1 max: 9 x̄: 1.11 x̃: 1 helped stats (rel) min: 0.15% max: 1.43% x̄: 0.35% x̃: 0.28% 95% mean confidence interval for instructions value: -1.18 -1.05 95% mean confidence interval for instructions %-change: -0.37% -0.32% Instructions are helped. total cycles in shared programs: 153397144 -> 153393046 (<.01%) cycles in affected programs: 1220713 -> 1216615 (-0.34%) helped: 255 HURT: 31 helped stats (abs) min: 1 max: 304 x̄: 16.71 x̃: 16 helped stats (rel) min: <.01% max: 6.70% x̄: 0.41% x̃: 0.31% HURT stats (abs) min: 1 max: 41 x̄: 5.29 x̃: 3 HURT stats (rel) min: 0.02% max: 0.65% x̄: 0.16% x̃: 0.11% 95% mean confidence interval for cycles value: -17.44 -11.22 95% mean confidence interval for cycles %-change: -0.40% -0.29% Cycles are helped. Iron Lake total instructions in shared programs: 8106894 -> 8105529 (-0.02%) instructions in affected programs: 287197 -> 285832 (-0.48%) helped: 1099 HURT: 0 helped stats (abs) min: 1 max: 10 x̄: 1.24 x̃: 1 helped stats (rel) min: 0.16% max: 4.55% x̄: 0.67% x̃: 0.61% 95% mean confidence interval for instructions value: -1.29 -1.19 95% mean confidence interval for instructions %-change: -0.70% -0.64% Instructions are helped. total cycles in shared programs: 188347022 -> 188344266 (<.01%) cycles in affected programs: 3740632 -> 3737876 (-0.07%) helped: 758 HURT: 10 helped stats (abs) min: 2 max: 38 x̄: 3.68 x̃: 2 helped stats (rel) min: <.01% max: 1.00% x̄: 0.12% x̃: 0.08% HURT stats (abs) min: 2 max: 4 x̄: 3.20 x̃: 4 HURT stats (rel) min: 0.03% max: 0.07% x̄: 0.06% x̃: 0.07% 95% mean confidence interval for cycles value: -3.82 -3.35 95% mean confidence interval for cycles %-change: -0.13% -0.11% Cycles are helped. GM45 total instructions in shared programs: 4985449 -> 4984768 (-0.01%) instructions in affected programs: 145154 -> 144473 (-0.47%) helped: 547 HURT: 0 helped stats (abs) min: 1 max: 10 x̄: 1.24 x̃: 1 helped stats (rel) min: 0.16% max: 2.86% x̄: 0.66% x̃: 0.61% 95% mean confidence interval for instructions value: -1.31 -1.18 95% mean confidence interval for instructions %-change: -0.69% -0.62% Instructions are helped. total cycles in shared programs: 128835062 -> 128833144 (<.01%) cycles in affected programs: 2720650 -> 2718732 (-0.07%) helped: 517 HURT: 1 helped stats (abs) min: 2 max: 38 x̄: 3.71 x̃: 2 helped stats (rel) min: <.01% max: 0.89% x̄: 0.11% x̃: 0.07% HURT stats (abs) min: 2 max: 2 x̄: 2.00 x̃: 2 HURT stats (rel) min: 0.04% max: 0.04% x̄: 0.04% x̃: 0.04% 95% mean confidence interval for cycles value: -4.02 -3.39 95% mean confidence interval for cycles %-change: -0.12% -0.10% Cycles are helped. Reviewed-by: Matt Turner <mattst88@gmail.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/3965> |
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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 gitlab for patches submission, review and discussions.