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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> |
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