Graphics: Intel and AMD Drivers, GNU/Linux Benchmarks
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16-bit Vulkan/SPIR-V Support Revised For Intel's Driver
Igalia developers have published their latest version of the big patch-set implementing 16-bit support within Intel's Vulkan driver and supporting the necessary 16-bit storage SPIR-V changes.
Developers at consulting firm Igalia have been tasked the past few months with getting this 16-bit data "half float" support in place for the Intel open-source Vulkan driver with VK_KHR_16bit_storage and SPIR-V's SPV_KHR_16bit_storage along with the necessary plumbing to Mesa's GLSL and NIR code.
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The Many Open-Source Radeon Linux Driver Advancements Of 2017
There were many sizable open-source Radeon Linux driver accomplishments this year. It was this year in which the RadeonSI OpenGL driver matured enough to compete with -- and sometimes surpass -- the Radeon Windows driver when talking raw OpenGL performance, RadeonSI can also outperform the AMDGPU-PRO OpenGL hybrid driver in many Linux gaming tests, the RADV Vulkan driver matured a lot, and many other milestones were reached.
Given the latest round of Windows vs. Linux Radeon gaming tests yesterday and the end of the year quickly approaching, I figured I would provide a list now about some of the major feats reached this year for the open-source Radeon graphics driver stack.
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Compute Shader & GLSL 4.30 Support For R600 Gallium3D
After recently getting some older Radeon GPUs to OpenGL 4.2 with new R600g patches and making other improvements to R600g, David Airlie has now sent out a set of patches for getting compute shaders and GLSL 4.30 working for some older pre-GCN GPUs with the R600 Gallium3D driver.
Airlie sent out today patches getting compute shaders and GL Shading Language 4.30 working in R600g. It seems to be working out the best at the moment with the Radeon HD 6400 "Caicos" graphics cards while the HD 6900 "Cayman" series currently hangs on compute. For running OpenGL 4 on R600g, the HD 5800 series and HD 6900 series generally tends to be the best due to having real FP64 support working where as the other generations of hardware only expose OpenGL 3.3 by default (but can use a version override to later GL4 versions if not needing FP64 support).
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The fastest and slowest versions of Linux
To see which version of Linux is the quickest, Phoronix has conducted a set of benchmarks measuring the total boot time of 11 Linux distributions.
The tests also measured the boot time of separate components, such as the loader and kernel of each distribution.
Systemd benchmark, part of Phoronix Test Suite 7.4.0, was used to benchmark the boot time of the distributions, and the results were published on OpenBenchmarking.org.
The tests show that the boot time of Linux distributions can vary substantially, with some systems taking over twice as long to boot up as others.
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