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0cc4aca345
This fixes a few bad assumptions in the pre-RA and post-RA scheduler, for example that (sy) is only for texture instructions and (ss) is only for SFU instructions and (sy) and (ss) producers will always take the same number of cycles. This means we now start doing latency hiding for cat6 instructions like ldib and ldc. It also should make us hide latency more aggressively, since the number used for (sy) stall cycles was way lower than the real numbers for everything except ldc. Finally it unifies the various places (ss) soft nops were calculated. selected shader-db results: total nops in shared programs: 345278 -> 358959 (3.96%) nops in affected programs: 215622 -> 229303 (6.34%) helped: 690 HURT: 2430 helped stats (abs) min: 1 max: 125 x̄: 11.40 x̃: 5 helped stats (rel) min: 0.53% max: 100.00% x̄: 24.19% x̃: 18.52% HURT stats (abs) min: 1 max: 501 x̄: 8.87 x̃: 5 HURT stats (rel) min: 0.00% max: 9900.00% x̄: 52.36% x̃: 14.29% 95% mean confidence interval for nops value: 3.78 4.99 95% mean confidence interval for nops %-change: 28.21% 42.66% Nops are HURT. total mov in shared programs: 75049 -> 74110 (-1.25%) mov in affected programs: 15754 -> 14815 (-5.96%) helped: 566 HURT: 455 helped stats (abs) min: 1 max: 36 x̄: 4.52 x̃: 3 helped stats (rel) min: 0.83% max: 100.00% x̄: 35.85% x̃: 30.00% HURT stats (abs) min: 1 max: 35 x̄: 3.55 x̃: 3 HURT stats (rel) min: 0.00% max: 1100.00% x̄: 63.60% x̃: 25.00% 95% mean confidence interval for mov value: -1.25 -0.58 95% mean confidence interval for mov %-change: 2.92% 14.02% Inconclusive result (value mean confidence interval and %-change mean confidence interval disagree). total last-baryf in shared programs: 80468 -> 67670 (-15.90%) last-baryf in affected programs: 63676 -> 50878 (-20.10%) helped: 309 HURT: 147 helped stats (abs) min: 1 max: 260 x̄: 49.20 x̃: 24 helped stats (rel) min: 0.60% max: 98.81% x̄: 37.92% x̃: 40.91% HURT stats (abs) min: 1 max: 115 x̄: 16.35 x̃: 12 HURT stats (rel) min: 0.96% max: 1933.33% x̄: 45.55% x̃: 7.89% 95% mean confidence interval for last-baryf value: -33.03 -23.10 95% mean confidence interval for last-baryf %-change: -21.52% -0.50% Last-baryf are helped. total sstall in shared programs: 133997 -> 126398 (-5.67%) sstall in affected programs: 86866 -> 79267 (-8.75%) helped: 1893 HURT: 598 helped stats (abs) min: 1 max: 77 x̄: 6.06 x̃: 4 helped stats (rel) min: 0.71% max: 100.00% x̄: 32.82% x̃: 16.67% HURT stats (abs) min: 1 max: 65 x̄: 6.47 x̃: 6 HURT stats (rel) min: 0.00% max: 900.00% x̄: 65.51% x̃: 25.00% 95% mean confidence interval for sstall value: -3.39 -2.71 95% mean confidence interval for sstall %-change: -12.19% -6.24% Sstall are helped. total systall in shared programs: 350304 -> 288234 (-17.72%) systall in affected programs: 234855 -> 172785 (-26.43%) helped: 1456 HURT: 260 helped stats (abs) min: 1 max: 574 x̄: 46.42 x̃: 27 helped stats (rel) min: 0.19% max: 100.00% x̄: 39.43% x̃: 36.06% HURT stats (abs) min: 1 max: 757 x̄: 21.20 x̃: 8 HURT stats (rel) min: 0.00% max: 180.95% x̄: 24.82% x̃: 12.50% 95% mean confidence interval for systall value: -39.31 -33.03 95% mean confidence interval for systall %-change: -31.49% -27.90% Systall are helped. total waves in shared programs: 236732 -> 235142 (-0.67%) waves in affected programs: 6142 -> 4552 (-25.89%) helped: 535 HURT: 17 helped stats (abs) min: 2 max: 8 x̄: 3.08 x̃: 2 helped stats (rel) min: 12.50% max: 75.00% x̄: 28.78% x̃: 25.00% HURT stats (abs) min: 2 max: 6 x̄: 3.53 x̃: 4 HURT stats (rel) min: 16.67% max: 75.00% x̄: 37.35% x̃: 33.33% 95% mean confidence interval for waves value: -3.04 -2.72 95% mean confidence interval for waves %-change: -28.10% -25.39% Waves are helped. Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/14246> |
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| VERSION | ||
`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 `OFTC's #dri-devel <irc://irc.oftc.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.