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Graphics/Benchmarks

Graphics: AMD, Intel and Vulkan

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Graphics/Benchmarks
  • AMDGPU DC Fixes For Linux 4.17 Take Care Of "The Dark Screen Issue"

    AMD's Alex Deucher has sent in a small set of fixes for the AMDGPU Direct Rendering Manager driver in the Linux 4.17 kernel.

    The three patches are for fixing a dark screen issue with AMDGPU DC, a fix for clock/voltage dependency tracking for WattMan, and an updated SMU interface for the yet-to-be-announced Vega 12 GPU.

  • Intel KVMGT 2018-Q1 Release Offers Mediated GPU Pass-Through Improvements

    While the relevant bits for supporting Intel GPU mediated pass-through to virtual machines with KVM are now upstream in the Linux kernel as well as in QEMU 2.12, Intel developers have just announced their quarterly release of "KVMGT" for those wanting the officially blessed configuration for running Intel virtual GPU support with KVM virtual machines.

  • RADV Vulkan Driver Adds Vega M Support

    Following RadeonSI adding "Vega M" support for the new Radeon graphics appearing embedded on select Intel Kabylake processor packages, the RADV developers have similarly staged their Vega M support in this open-source Vulkan driver.

  • The Forge Now Offers Full-Featured Vulkan Support On Linux

    Earlier this month we covered "The Forge" picking up initial Linux support and now they have rounded out their full-featured Linux support with Vulkan rendering.

This Chart Shows How The Radeon RX 580 vs. GeForce GTX 1060 Now Compete Under Linux

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Graphics/Benchmarks

It was just last year that open-source RadeonSI/RADV developers were trying to get the Radeon RX 580 "Polaris" GPU to be competitive with the GeForce GTX 1060 as it is under Windows given each GPU's capabilities. We've seen the RX 580 and GTX 1060 dancing under Linux the past few months and yesterday's 20-way GPU comparison with Rise of the Tomb Raider was quite significant -- perhaps most surprising being how well the RX 580 performed. Heck, just one or two years ago it was an accomplishment seeing any official Radeon driver support at-launch for new Linux game releases. So here are some extensive tests looking closer at the GTX 1060 vs. RX 580 battle in this latest Vulkan-powered Linux game port.

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20-Way NVIDIA GeForce / AMD Radeon GPU Comparison For Rise of The Tomb Raider On Vulkan/Linux

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Graphics/Benchmarks
Gaming

Today Feral Interactive released their much anticipated Linux port of Rise of the Tomb Raider, the game that was released for Windows in January of 2016 and then released for macOS last week. Feral's Mac port was relying upon the Apple Metal API while the Linux port is now their second game (after F1 2017) exclusively relying upon the Vulkan graphics/compute API rather than OpenGL. This morning I posted the initial Radeon results using the RADV driver while here is the NVIDIA GeForce vs. AMD Radeon graphics card comparison on Ubuntu Linux using twenty different graphics cards.

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AMD Ryzen 5 2600X + Ryzen 7 2700X Linux Benchmarks

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Graphics/Benchmarks

The embargo on the Ryzen 5 2600X and Ryzen 7 2700X processors has expired now that these Ryzen+ CPUs are beginning to ship today. We can now talk about the Linux support and the initial performance figures for these upgraded Zen desktop CPUs.

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Graphics: AMD, RADV, RadeonSI, Mesa 18.0.1

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Graphics/Benchmarks
  • AMDGPU DRM Gets "GFXOFF" Patches To Turn Off Graphics Engine

    AMD's Huang Rui has posted a set of 20 patches providing "GFXOFF" support for the AMDGPU Direct Rendering Manager Linux kernel driver.

    GFXOFF is a new graphics processor feature that allows for powering off the graphics engine when it would otherwise be idle with no graphics workload. Obviously, this would equate to a potentially significant power savings with that engine being able to be shut-off.

  • RADV Driver Lands Support For Vulkan's New Descriptor Indexing Extension

    Earlier this month with the Vulkan 1.1.72 specification update was the new VK_EXT_descriptor_indexing extension that is quickly being well received by developers.

    The VK_EXT_descriptor_indexing extension allows for creating large descriptor sets made up of all their combined resources and selecting those resources via dynamic indexes in a shader.

  • RadeonSI Now Appears To Support "RX Vega M" With Intel Core CPUs

    One of the most common Linux hardware questions I've received dozens of times in the past few weeks alone has been over the support for "RX Vega M" Vega-based graphics processors found on select newer Intel Kabylake CPUs. It appears RadeonSI at least should now support these Radeon graphics on Intel CPUs.

  • mesa 18.0.1
  • Mesa 18.0.1 Released With A Number Of Fixes

    In addition to Mesa 17.3.9 being released today, Mesa 18.0.1 also rolled out the door as the first point release to last quarter's Mesa 18.0 series.

    Mesa 18.0.1 features improvements to its Meson build system support, several RADV Vulkan driver fixes, various fixes to the Gallium3D Nine (D3D9) state tracker, various Intel driver fixes, several core Mesa improvements, and then the other random smothering of fixes collected over the past few weeks.

Meltdown/PTI Mitigation Impact On BSDs vs. Linux

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Graphics/Benchmarks
Linux
BSD

Besides the fresh BSD/Linux disk performance tests, some other tests I ran on various BSDs and Linux distributions this week was looking at the performance impact of Intel Meltdown CPU vulnerability mitigation on each of them, namely the performance impact of using kernel page-table isolation.

On DragonFlyBSD 5.2, TrueOS 18.03, Ubuntu 16.04, Ubuntu 18.04, and Clear Linux I ran tests when the mitigation was enabled and then again when it was off for seeing the performance impact.

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Wayland's Weston Development and Mesa 17.3.9

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Graphics/Benchmarks
  • Wayland's Weston Begins Switching To Head-Based Output API

    Following last week's release of Wayland 1.15 / Weston 4.0, the development gates are once again open for new feature activity to land for Wayland and the reference Weston compositor. Weston has alrea

  • mesa 17.3.9
  • Mesa 17.3.9 Released To End Out The Series

    For those still using the Mesa 3D release that debuted in Q4'2017, the Mesa 17.3.9 point release is now available while it's the last planned update for the series.

    Mesa 17.3.9 has about two dozen fixes affecting the Intel drivers, RADV / RadeonSI, GLSL / SPIR-V / NIR, and other minor fixes/improvements. The list of Mesa 17.3.9 fixes can be found via this morning's release announcement.

RADV vs. AMDVLK Vulkan Drivers Continue Stiff Performance Battle

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Graphics/Benchmarks

With the RADV Mesa Radeon Vulkan driver continuing to be advanced by Valve and other independent developers while AMD continues with open-source code drops of their official AMDVLK Vulkan driver, it's been a friendly open-source Radeon Vulkan driver performance and feature/extension battle since that official AMD Vulkan driver was opened up at the end of last year. With new AMDVLK/XGL/PAL code drops happening about weekly and RADV continuing to receive new feature/performance work every few days, both drivers continue maturing gracefully as shown by our latest performance benchmarks.

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Kernel (Linux 4.17), the Linux Foundation, and Graphics

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Graphics/Benchmarks
Linux
  • Detailing The Idle Loop Ordering Problem & The Power Improvement In Linux 4.17

    Of the many great features/changes for Linux 4.17, one of the most exciting to us is the idle power efficiency and performance-per-Watt improvements on some systems thanks to a rework to the kernel's idle loop handling. Rafael Wysocki and Thomas Ilsche as two of the developers working on this big code change presented on their work today for this CPU idle loop ordering problem and its resolution.

  • Linux 4.17 development underway

    Linus Torvalds has started the development cycle of the Linux 4.17 kernel series, according to a report by Softpedia.

    The first Release Candidate build has been released, and comes two weeks after the launch of Linux 4.16.

    “Public testers can start downloading, compiling, and installing the upcoming Linux 4.17 kernel,” stated the report.

  • Linux Foundation seeks to harmonise open source and standards development

    A year ago The Linux Foundation created its 'Harmonisation 1.0' initiative, focusing on collaboration between projects and with standards bodies. It brought together a set of open source projects, which together form the basis of the modern telecoms systems. Open source creates three values for telcos: speed to services, vendor collaboration, and cost reductions. The LF is also creating a framework between open source and standards communities; for example, this year it announced an agreement with the TM Forum, focused on the APIs that work between the two communities.

  • Broadcom VC5 DRM Driver Might Soon Be On Its Way To The Mainline Linux Kernel

    Eric Anholt believes he is getting quite close to the stage of merging the Broadcom VC5 DRM driver into the mainline Linux kernel tree.

    As part of the VC5 open-source driver stack for supporting the next-gen Broadcom VideoCore 5 graphics hardware, there's been the VC5 Gallium3D driver that is already in mainline Mesa for OpenGL support and the VC5 DRM driver that has been outside of the kernel tree up until now. (There's also been the also out-of-tree experimental work on VC5 Vulkan support via BCMV, etc.)

  • NVIDIA 396.18.02 Vulkan Linux Beta Brings Better Shader Performance

    Last week NVIDIA released their first 396 Linux driver beta that most notably introduces their new "NVVM" Vulkan SPIR-V compiler. Coming out today is a new Vulkan beta update with some continued enhancements.

  • AMDVLK Driver Updated With Latest XGL/PAL Fixes

    AMD kicked off the start of a new week by doing fresh code drops of the PAL and XGL code-bases used to form the AMDVLK open-source Radeon Vulkan Linux driver.

    On the XGL side this latest code drop of around one thousand lines of code reduces the number of malloc/free calls, support for INT64 atomic operations within LLPC (the LLVM Pipeline Compiler), other tweaks to LLPC, more barriers in the render pass clear, adding FMASK shadow table support, and other changes.

  • X.Org 2018 Elections Yield 54% Voter Turnout, Select Four New Board Members

    The 2018 X.Org Board of Directors elections are over with 49 of the 91 X.Org registered members having casted a ballot.

    The new X.Org Board of Directors members are Bryce Harrington (Samsung OSG, formerly Canonical), Eric Anholt (Broadcom, formerly Intel), Keith Packard (HPE / Valve, formerly Intel), and Harry Wentland (AMD).

P-State/CPUFreq CPU Frequency Scaling Tests For Radeon/NVIDIA Gaming With Linux 4.16

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Graphics/Benchmarks
Gaming

With last week's release of Feral GameMode as a system tool to optimize Linux gaming performance, which at this point just toggles the CPU frequency scaling driver's governor to the "performance" mode, reignited the CPU governor debate, here are some fresh Linux gaming benchmarks. Tests were done with both the CPUFreq and P-State scaling drivers on Linux 4.16 while testing the various governor options and using both AMD Radeon and NVIDIA GeForce graphics cards.

This comparison shows how a GeForce GTX 1080 and Radeon RX Vega 64 perform under the different CPU frequency scaling driver/governor options on the Linux 4.16 stable kernel. Tests were done with an Intel Core i7 8700K running at stock speeds throughout the entire benchmarking process.

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