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Graphics/Benchmarks

AMD Ryzen 7 2700X: Windows 10 vs. Linux Performance

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Graphics/Benchmarks
Linux
Microsoft

Recently there have been several Linux distribution benchmark comparisons on Phoronix to test the latest Linux OS releases, including several comparing to the current Microsoft Windows 10 performance. Those recent tests have all be done with various Intel CPUs, but for those curious about the AMD Windows vs. Linux performance, here are some fresh benchmarks as we approach the end of July.

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A Closer Look At The Linux Laptop Power Use Between Ubuntu, Fedora, Clear & Antergos

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Graphics/Benchmarks

Earlier this month I posted some results when looking at the Windows 10 versus Linux power consumption using a Kabylake-R Dell XPS 13 laptop and testing Windows 10, Ubuntu 18.04, Fedora Workstation 28, openSUSE Tumbleweed, and Clear Linux. For some additional numbers, I took three other distinctly different laptops and tested them on a few Linux distributions to see how their battery life and power efficiency compare as additional metrics to complement this earlier data.

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Jonathan Dieter: Small file performance on distributed filesystems - Round 2

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Graphics/Benchmarks
Linux

Last year, I ran some benchmarks on the GlusterFS, CephFS and LizardFS distributed filesystems, with some interesting results. I had a request to redo the test after a LizardFS RC was released with a FUSE3 client, since it is supposed to give better small file performance.

I did have a request last time to include RozoFS, but, after a brief glance at the documentation, it looks like it requires a minimum of four servers, and I only had three available. I also looked at OrangeFS (originally PVFS2), but it doesn’t seem to provide replication, and, in preliminary testing, it was over ten times slower than the alternatives. NFS was tested and its results are included as a baseline.

I once again used compilebench, which was designed to emulate real-life disk usage by creating a kernel tree, reading all the files in the tree, simulating a compile of the tree, running make clean, and finally deleting the tree.

The test was much the same as last time, but with one important difference. Last time, the clients were running on the same machines that were running the servers. LizardFS benefited hugely from this as it has a “prefer local chunkserver” feature that will skip the network completely if there’s a copy on the local server. This time around, the clients were run on completely separate machines from the servers, which removed that advantage for LizardFS, but which I believe is a better reflection on how distributed filesystems are generally used.

I would like to quickly note that there was very little speed difference between LizardFS’s FUSE2 and FUSE3 clients. The numbers included are from the FUSE3 client, but they only differed by a few percentage points from the FUSE2 client.

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Graphics: Intel/DRM-Next, ATI/AMD, and NVIDIA

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Graphics/Benchmarks
  • Intel Squeezes Final Batch Of Linux 4.19 DRM Changes, Lands Icelake Display Compression

    Last week Intel sent in a "final" batch of i915 DRM driver feature updates to DRM-Next for the upcoming Linux 4.19 kernel cycle but it turns out there is one more batch of changes now focused on landing.

    Intel open-source graphics driver developer Rodrigo Vivi submitted their final pull request of new material for Linux 4.19.

  • 2018 Brings A New Linux X.Org Display Driver Update For The ATI RAGE 128

    Last month I wrote about a new attempt at improving the ATI RAGE 128 X.Org driver... Yes, for the for the Rage graphics cards from the late 90's in the days of AGP and PCI where core/memory clock speeds were commonly in the double digits... If you are a hobbyist fond of these vintage graphics cards and are still running with these OpenGL 1.1~1.2 capable GPUs, there is a new X.Org driver update.

  • AMDGPU Gets More Features For Linux 4.19 Kernel

    On top of AMDGPU improvements/features already staged for Linux 4.19, the AMD folks on Thursday sent in their seemingly last set of feature updates to DRM-Next ahead of the Linux 4.19 kernel merge window.

    There is certainly a lot of new DRM material queuing for Linux 4.19: if you are behind on your Phoronix reading, there will be a DRM recap next week or so on Phoronix with the cutoff for new DRM-Next material hitting its end for the upcoming 4.19 window. Thursday's Radeon/AMDGPU update just adds to this big list of changes.

  • AMDVLK Vulkan Driver Plumbs New Extensions, Lands A Number Of Fixes

    The AMD folks maintaining their official Vulkan driver code have done their common end-of-week code dump into the open-source AMDVLK Linux Vulkan driver repository across the PAL, XGL, LLVM, and SPVGEN code-bases.

  • NVIDIA 396.45 Linux Driver Fixes Vulkan Direct-To-Display & Multi-Threaded EGL Apps

    The NVIDIA Unix developers have released the 396.45 binary display driver today with just two listed bug-fixes.

    The NVIDIA 396.45 Linux driver has improved recovery for Vulkan direct-to-display applications (such as VR compositors or other use-cases where the Vulkan application is taking directly control of the display output) when the application hangs or crashes. This is good news in case of a problematic Linux VR experience that the display should be restored more gracefully.

  • NVIDIA pushed out two new Linux drivers recently with 396.45 and 390.77

    NVIDIA are pushing forward with improving their Linux driver in many areas, with two driver series seeing updated in the past week.

    The first is the 390.77 driver, part of their "long-lived branch release".

Fresh Docker Linux Benchmarks For Summer 2018

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Graphics/Benchmarks

The Docker testing was done from an Ubuntu 18.04 LTS x86_64 host running with the default Linux 4.15 kernel off the commonly-used Tyan 1U Xeon Scalable server with dual Xeon Gold 6138 processors. Docker was tested in its stock configuration on Ubuntu 18.04 LTS and each Docker container tested consecutively. Each Docker container was benchmarked in a fully-automated and reproducible manner using the open-source Phoronix Test Suite.

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Graphics: ROCm, AMD, Mesa, Sway

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Graphics/Benchmarks
  • ROCm 1.8.2 Released For The Open-Source Radeon Linux Compute Stack

    While waiting for the big ROCm 1.9 update, another point release to the ROCm 1.8 series is available for this Radeon Open Compute stack.

    Earlier this month the AMD developers working on this Linux open-source OpenCL/compute stack pushed out the ROCm 1.8.2 beta while today it was elevated to the stable channel.

    Details on the ROCm 1.8.2 update are unfortunately light, but based upon user reports, it seems to be able to create a working environment on Ubuntu 18.04 LTS if paired with a newer kernel. But the official Ubuntu 18.04 LTS isn't coming until ROCm 1.9.

  • Raven Ridge APUs Get Minor Performance Boost With Latest RADV Vulkan Driver

    The Raven Ridge Linux support continues to maturing. The latest on these Zen+Vega APUs using the open-source AMD Radeon Linux graphics driver stack should be slightly better performance when using the RADV Vulkan driver.

    RADV co-founder Bas Nieuwenhuizen landed a number of commits on Wednesday to further enhance this Mesa-based Radeon Vulkan driver. With this latest work, he's now enabled binning and DFSM by default for Raven Ridge hardware. With this being enabled now for Raven, he's found a minor performance in the range of 2~3% for some demos and games tested.

  • Freedreno Gallium3D Now Exposes Adreno A5xx Performance Counters

    It's been a while since last having any news to report on Freedrenon, the open-source, community-driven Gallium3D driver for providing accelerated 3D support for Qualcomm Adreno graphics hardware. But ahead of the upcoming Mesa 18.2 feature freeze, Freedreno founder Rob Clark has been landing a number of improvements.

  • Sway 1.0 Alpha 4 Released With Real-Time Video Capture, Atomic Layout Updates

    Learn more about the Sway 1.0 Alpha 4 release via the GitHub release announcement.

Linux Development, Graphics and Linux Foundation

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Graphics/Benchmarks
Linux
  • Fedora Gets An Unofficial Kernel Based On Clear Linux

    While the kernel configuration is just one part of Intel's Clear Linux optimizations for their performance-oriented distribution, a Fedora user has taken the liberty of spinning a Fedora kernel build based upon Clear Linux's kernel configuration.

  • An Idle Injection Framework Queued For Linux 4.19

    Another one of the new frameworks slated for the Linux 4.19 kernel cycle kicking off in August is for idle injection.

    Right now drivers like Intel PowerClamp and the AMD CPU cooling code insert idle CPU cycles when needed on their own, in order to keep below an intended power envelope or thermal threshold. Rather than drivers implementing idle injections on their own, the idle injection code within the Linux kernel has moved into a dedicated framework to make it easier for other kernel users to deploy.

  • IT87 Linux Driver For Supporting Many Motherboard Sensors Is Facing Death

    While Linux hardware support for desktop PCs has advanced a great deal over the years, one area that continues to struggle is support for fan/thermal/power sensors on many of today's motherboards. This area has struggled with not enough public documentation / data-sheets from ASIC vendors as well as not enough upstream Linux kernel developers being interested in the hwmon subsystem. The IT87 Linux driver for many common Super I/O chips found on countless motherboards is unfortunately facing a downfall.

  • Mesa 18.2 Gets Extra Two Weeks Of Development Time

    Serving as the Mesa 18.2 release manager is Andres Gomez of Igalia. He's now pushed back the release plan by two weeks, although Mesa 18.2.0 still should end up shipping in August.

    Rather than branching Mesa 18.2 by week's end, which begins the release candidate phase and marks the feature freeze, that deadline will be pushed back to 1 August. That means there are an extra two weeks of developers to land any desired changes into this next quarterly Mesa feature update.

  • Tips for Success with Open Source Certification

    In today’s technology arena, open source is pervasive. The 2018 Open Source Jobs Report found that hiring open source talent is a priority for 83 percent of hiring managers, and half are looking for candidates holding certifications. And yet, 87 percent of hiring managers also cite difficulty in finding the right open source skills and expertise. This article is the second in a weekly series on the growing importance of open source certification.

    In the first article, we focused on why certification matters now more than ever. Here, we’ll focus on the kinds of certifications that are making a difference, and what is involved in completing necessary training and passing the performance-based exams that lead to certification, with tips from Clyde Seepersad, General Manager of Training and Certification at The Linux Foundation.

  • Xen Project Hypervisor Power Management: Suspend-to-RAM on Arm Architectures

    About a year ago, we started a project to lay the foundation for full-scale power management for applications involving the Xen Project Hypervisor on Arm architectures. We intend to make Xen on Arm's power management the open source reference design for other Arm hypervisors in need of power management capabilities.

Kernel and Graphics: PDS, VKMS and Nouveau

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Graphics/Benchmarks
Linux
  • PDS 0.98s release

    PDS 0.98s is released with the following changes

    1. Fix compilation issue on raspberry pi.
    2. Minor rework and optimization on balance code path.
    3. Fix wrong nr_max_tries in migrate_pending_tasks.

    This is mainly a bug fix and minor optimization release for 4.17. The rework of balance code doesn't go well, it actually make more overhead than current implement. Another rework which based on current implement is still on going, hopefully be included in next release.

  • PDS-MQ CPU Scheduler Revised For The Linux 4.17 Kernel With Minor Optimizations

    Alfred Chen announced this week the release of PDS-mq 0.98s, his latest patch-set of this CPU scheduler against the Linux 4.17 upstream code-base and includes minor optimization work and bug fixes.

    The PDS scheduler stands for the "Priority and Deadline based Skiplist multiple queue scheduler" that is derived from Con Kolivas' former BFS scheduler with Variable Run Queue (VRQ) support. PDS design principles are to be a simple CPU process scheduler yet efficient and scalable. PDS-mq differs from Con Kolivas' current MuQSS scheduler.

  • Add infrastructure for Vblank and page flip events in vkms simulated by hrtimer

    Since the beginning of May 2018, I have been diving into the DRM subsystem. In the beginning, nothing made sense to me, and I had to fight hard to understand how things work. Fortunately, I was not alone, and I had great support from Gustavo Padovan, Daniel Vetter, Haneen Mohammed, and the entire community. Recently, I finally delivered a new feature for VKMS: the infrastructure for Vblank and page flip events.

    At this moment, VKMS have regular Vblank events simulated through hrtimers (see drm-misc-next), which is a feature required by VKMS to mimic real hardware [6]. The development approach was entirely driven by the tests provided by IGT, more specifically the kms_flip. I modified IGT to read a module name via command line and force the use of it, instead of using only the modules defined in the code (patch submitted to IGT, see [1]). With this modification in the IGT, my development process to add a Vblank infrastructure to VKMS had three main steps as Figure 1 describes.

  • The State Of The VKMS Driver, Preparations For vBlank & Page Flip Events

    One of the exciting additions to look forward to with the upcoming Linux 4.19 kernel cycle is the virtual "VKMS" kernel mode-setting driver. The driver is still a work-in-progress, but multiple developers are working on it.

  • NIR Continues To Be Prepped For OpenCL Support

    Longtime Nouveau contributor Karol Herbst who joined Red Hat several months ago has been working on Nouveau NIR support as stepping towards SPIR-V/compute support and this summer the work very much remains an active target.

  • Nouveau Gallium3D Moves Closer Towards OpenGL 4.5 Compliance

    While the RadeonSI and Intel i965 Mesa drivers have been at OpenGL 4.5 compliance for a while now, the Nouveau "NVC0" Gallium3D driver has been bound to OpenGL 4.3 officially.

    This Nouveau Gallium3D driver for NVIDIA "Fermi" graphics hardware and newer has effectively supported all of the OpenGL 4.4/4.5 extensions, but not officially. Originally the NVC0 problem for OpenGL 4.4 and newer was the requirement of passing the OpenGL Conformance Test Suite (CTS), which at first wasn't open-source. But now The Khronos Group has made it available to everyone as open-source. Additionally, the proper legal wrangling is in place so the Nouveau driver could become a conforming Khronos adopter under the X.Org Foundation without any associated costs/fees with Nouveau being purely open-source and primarily considered a community driver.

Comparing Latencies and Power consumption with various CPU schedulers

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Graphics/Benchmarks
Ubuntu

The low-latency kernel offering with Ubuntu provides a kernel tuned for low-latency environments using low-latency kernel configuration options. The x86 kernels by default run with the Intel-Pstate CPU scheduler set to run with the powersave scaling governor biased towards power efficiency.

While power efficiency is fine for most use-cases, it can introduce latencies due to the fact that the CPU can be running at a low frequency to save power and also switching from a deep C state when idle to a higher C state when servicing an event can also increase on latencies.

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Vulkan vs. OpenGL Performance For Linux Games

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Graphics/Benchmarks
Gaming

It has been a while since last publishing some Linux GPU driver benchmarks focused explicitly on the OpenGL vs. Vulkan performance, but that changed today with a fresh look at the performance between these two Khronos graphics APIs when tested with AMD and NVIDIA hardware on the latest RadeonSI/RADV and NVIDIA Linux graphics drivers.

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Graphics: Intel and AMD Developments

  • Intel Has Quietly Been Working On A New Gallium3D Driver Being Called "Iris"
    After resisting Gallium3D for the past decade with a preference on continuing to maintain their "i965" Mesa classic driver and all they've invested into its compiler stack and more, it seems times are changing as the open-source Intel team has been starting up development of a modern Gallium3D driver. This is not to be confused with the former i915g or i965g efforts from about a decade ago that were the experiments of Tungsten/LunarG for driver research/experimentation purposes or in the case of i915g to handle some features with LLVM in software, but this is a modern Gallium3D driver targeting their current hardware.
  • AMDGPU-PRO 18.30 Linux Graphics Driver Released with Ubuntu 18.04 LTS and RHEL / CentOS Support
    The long awaited AMDGPU-PRO 18.30 driver update for the AMD Linux graphics driver package has finally been released, with a driver installation option for both “all open” and closed / proprietary driver modules. What is great about this driver package update is that it is supported on the latest Ubuntu 18.04.1 LTS as well as Ubuntu 16.04.5, and RHEL / CentOS 6.10 and 7.5 respectively for their Enterprise Linux support targets.
  • AMDGPU-PRO 18.30 Released With Ubuntu 18.04.1 Support & WattMan-Like Functionality
    AMDGPU-PRO 18.30 is now available as the long desired update to this official AMD Linux graphics driver package that consists of the driver installation option for both the "all-open" and closed/proprietary driver modules. Notable to the AMDGPU-PRO 18.30 release is that Ubuntu 18.04.1 LTS is now supported as well as Ubuntu 16.04.5. Additionally, RHEL/CentOS 6.10 and 7.5 release series round out their enterprise Linux support targets.

Wine 3.14 Released

  • Wine Announcement
    The Wine development release 3.14 is now available.
  • Wine 3.14 Adds DXTn Texture Decompression, Other Improvements
    Due to the summer holidays it's been four weeks since Wine 3.13 but it has now been succeeded by Wine 3.14 as the newest feature release. Wine 3.14 adds support for DXTn texture decompression, deferral support for MSI install actions, Japanese keyboard support within DirectInput, improvements to the standard task dialog, more Shell32 icons, and a total of 36 bug fixes. Those bug fixes range from Adobe CS4 issues to problems with Wargaming, Chromium, Guild Wars, Civilization V, Chaos League, and other software.
  • Grab a glass as Wine 3.14 is out today with DXTn texture decompression support and plenty of fixes
    The latest and greatest in fine Wine [Official Site] is out today with Wine 3.14 filled with features and the usual bug fixes including support for DXTn texture decompression

Android Leftovers

Zephyr Project Embraces RISC-V with New Members and Expanded Board Support

The Linux Foundation’s Zephyr Project, which is developing the open source Zephyr real-time operating system (RTOS) for microcontrollers, announced six new members, including RISC-V members Antmicro and SiFive. The project also announced expanded support for developer boards. Zephyr is now certified to run 100 boards spanning ARM, x86, ARC, NIOS II, XTENSA, and RISCV32 architectures. Antmicro, SiFive, and DeviceTone, which makes IoT-savvy smart clients, have signed up as Silver members, joining Oticon, runtime.io, Synopsys, and Texas Instruments. The other three new members -- Beijing University of Posts and Telecommunications, The Institute of Communication and Computer Systems (ICCS), and Northeastern University – have joined the Vancouver Hack Space as Associate members. Read more