7b0a4f977b
By estimating liveness in the scheduler and choosing instructions likely to reduce register pressure, on average we can decrease pressure given a sufficiently larger window. On the other hand, decreasing pressure instead of leaning too heavily on the search window enables us to use a much larger search window without inflating pressure too much. So by doing both in lockstep, we benefit pretty well. total instructions in shared programs: 49458 -> 48540 (-1.86%) instructions in affected programs: 26931 -> 26013 (-3.41%) helped: 221 HURT: 15 helped stats (abs) min: 1 max: 36 x̄: 4.37 x̃: 2 helped stats (rel) min: 0.31% max: 16.90% x̄: 4.97% x̃: 3.85% HURT stats (abs) min: 1 max: 4 x̄: 3.13 x̃: 3 HURT stats (rel) min: 0.50% max: 7.14% x̄: 4.53% x̃: 4.55% 95% mean confidence interval for instructions value: -4.65 -3.13 95% mean confidence interval for instructions %-change: -4.94% -3.81% Instructions are helped. total bundles in shared programs: 25199 -> 23446 (-6.96%) bundles in affected programs: 21600 -> 19847 (-8.12%) helped: 277 HURT: 170 helped stats (abs) min: 1 max: 45 x̄: 7.33 x̃: 6 helped stats (rel) min: 1.06% max: 33.83% x̄: 11.01% x̃: 8.57% HURT stats (abs) min: 1 max: 6 x̄: 1.63 x̃: 1 HURT stats (rel) min: 1.19% max: 40.00% x̄: 13.36% x̃: 11.11% 95% mean confidence interval for bundles value: -4.61 -3.23 95% mean confidence interval for bundles %-change: -3.00% -0.49% Bundles are helped. total quadwords in shared programs: 40269 -> 39652 (-1.53%) quadwords in affected programs: 35881 -> 35264 (-1.72%) helped: 242 HURT: 244 helped stats (abs) min: 1 max: 36 x̄: 4.61 x̃: 3 helped stats (rel) min: 0.39% max: 16.33% x̄: 5.33% x̃: 5.13% HURT stats (abs) min: 1 max: 20 x̄: 2.04 x̃: 1 HURT stats (rel) min: 0.81% max: 21.74% x̄: 7.57% x̃: 6.25% 95% mean confidence interval for quadwords value: -1.71 -0.83 95% mean confidence interval for quadwords %-change: 0.46% 1.82% Inconclusive result (value mean confidence interval and %-change mean confidence interval disagree). total registers in shared programs: 3786 -> 3336 (-11.89%) registers in affected programs: 2161 -> 1711 (-20.82%) helped: 262 HURT: 35 helped stats (abs) min: 1 max: 7 x̄: 1.87 x̃: 1 helped stats (rel) min: 6.25% max: 66.67% x̄: 28.91% x̃: 25.00% HURT stats (abs) min: 1 max: 3 x̄: 1.11 x̃: 1 HURT stats (rel) min: 7.69% max: 100.00% x̄: 19.76% x̃: 12.50% 95% mean confidence interval for registers value: -1.70 -1.33 95% mean confidence interval for registers %-change: -25.56% -20.79% Registers are helped. total threads in shared programs: 2453 -> 2592 (5.67%) threads in affected programs: 160 -> 299 (86.87%) helped: 79 HURT: 6 helped stats (abs) min: 1 max: 2 x̄: 1.85 x̃: 2 helped stats (rel) min: 100.00% max: 100.00% x̄: 100.00% x̃: 100.00% HURT stats (abs) min: 1 max: 2 x̄: 1.17 x̃: 1 HURT stats (rel) min: 50.00% max: 50.00% x̄: 50.00% x̃: 50.00% 95% mean confidence interval for threads value: 1.45 1.82 95% mean confidence interval for threads %-change: 81.08% 97.75% Threads are [helped]. total spills in shared programs: 168 -> 17 (-89.88%) spills in affected programs: 167 -> 16 (-90.42%) helped: 13 HURT: 0 total fills in shared programs: 186 -> 35 (-81.18%) fills in affected programs: 186 -> 35 (-81.18%) helped: 14 HURT: 0 Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5513>
`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.