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Currently we dispose any unneeded color buffers immediately if we detect that there are more unlocked buffers than we need. This can lead to feedback loops between the compositor and the application causing rapid toggling between double and tripple buffering. Scenario: 2 buffers already queued to the compositor, egl/wayland allocates a new back buffer to avoid throttling, slowing down the frame. This allows the compositor to catch up and unlock both buffers. EGL detects that there are more buffers than currently needed, freeing the buffer, restarting the loop shortly after. To avoid wasting CPU time on rapidly freeing and reallocating color buffers break those feedback loops by letting the unneeded buffers sit around for a short while before disposing them. Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Reviewed-by: Simon Ser <contact@emersion.fr> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/14451>
`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.