Friedrich Vock with Valve presented yesterday at XDC 2023 on the Mesa RADV Vulkan driver's ray-tracing performance. Last year at XDC 2022 it was dubbed "the world's slowest raytracer" but thanks to the work done by Valve and others, the RADV ray-tracing performance is now quite capable and also enabled by default since Mesa 23.2. The RADV ray-tracing performance also continues inching closer to the AMDVLK Vulkan performance for that official open-source AMD Vulkan driver...
Multi-grain(ed) timestamps had been submitted for Linux 6.6 to better deal with NFS where the once-per-jiffy coarse-grained timestamps aren't enough for (in)validating caches. Multi-grained timestamps sought to address that by optionally allowing for the more fine-grained timestamps when desired but not using that finer granularity everywhere due to the greater overhead costs. This feature though ended up being reverted weeks later due to subtle bugs being uncovered. Now though a new redux patch series has been posted for providing another attempt at multi-grained timestamps...
Following other Intel oneAPI components like Embree and OpenVKL introducing GPU acceleration via SYCL, today Intel released the open-source OSPRay 3.0 that rolls out initial GPU support for this portable ray-tracing engine...
Merged last week to the X.Org Server is support in the 2D-acceleration-via-OpenGL GLAMOR code for allowing OpenGL ES 3.0 (GLES3) shaders...
Kicking off XDC 2023 yesterday in Spain was Igalia's Melissa Wen talking about her work on color management with the open-source AMD Linux graphics driver stack to empower Valve's Linux work on the Steam Deck. That was followed by Joshua Ashton of Valve talking about their work on HDR and color management from the Steam OS / Gamescope side for the Steam Deck...
Adding to the list of vendors exposing ACPI Platform Profile controls under Linux so the user can easily set their power/performance preference for the system is major Chinese hardware company Inspur...
Mold 2.3 was released today by Rui Ueyama as the newest version of this high-speed linker alternative to LLVM LLD and GNU Gold...
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