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read-only mirror of https://gitlab.freedesktop.org/mesa/mesa
064f395a89
Using non-write flags is pretty dubious -- it means the kernel tracking an array of read-only consumers of the BO and having exclusive consumers wait on each reader's fence. It allows multiple readers through dma-bufs to do work in parallel, but at the cost of kernel CPU time and memory management of the shared array. Other drivers have dropped this distinction since dma-buf sharing is usually producer-consumer, not producer-two-consumers, and the userspace and kernel space tracking is expensive. For us, this lets us drop the flags passed in for relocs and tracked in the ringbuffer reloc lists. The end result of the flags reduction work is drawoverhead uniforms test throughput 2.37195% +/- 0.365579% (n=15) Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4967> |
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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.