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Intel Linux Graphics Driver Will Now Be Less Restrictive Over RAM Use
A change merged yesterday to the Intel Mesa graphics driver code lessens a restriction around the amount of system memory (RAM) that can be used by processes for the Vulkan system heap
This will allow more games/apps to work with the Intel integrated graphics that previously exceeded the driver-enforced limits but at the risk of running into broader out-of-memory behavior if under too much memory pressure. Of course, this always brings the risk that running too many things at once may awake the OOM monster, but IMHO, completely preventing certain workloads from working is too high of a price to pay in a situation where you can just use /usr/bin/kill something. When xe.ko was introduced, it only reported 50% of the SRAM as available through its ioctls, so commit b571ae6e7a76 ("intel: Make memory heaps consistent between KMDs") adapted the code to not take an extra 25% of the 50% that was already cut, and restricted i915.ko to 50% instead of the 50%-or-75%.
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