Kenneth Graunke
a7b054c974
When calculating the system memory heap size, we report only 3/4 of the total RAM size (or 1/2 for systems with less than 4GB of RAM). In the memory budget extension query, we were reporting 90% of the available system memory. If most of the memory in the system is free, this could result in the total heap size being 3/4 of RAM, but the memory available being 9/10 of RAM. But if the application tried to allocate the memory reported as "available", it would exceed the heap size. This can confuse some applications. This patch makes the memory budget query clamp the available RAM to the heap size, so it will never report more available than the heap can provide. Unfortunately, this means that we'll report only 67.5% of system memory as available (3/4 * 9/10). We may want to adjust this estimate in the future. Cc: mesa-stable Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com> Reviewed-by: José Roberto de Souza <jose.souza@intel.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/26553>
`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.