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Graphics/Benchmarks

Building The Linux Kernel With LLVM's Clang Yields Comparable Performance

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Development
Graphics/Benchmarks
Linux
BSD

We have covered the LLVMLinux project many times with an increasing number of developers from the x86 and ARM world being interested in building the kernel with Clang. Among the reasons for wanting to build the Linux kernel with Clang is for possible performance advantages, faster kernel compilation times when debugging the kernel, using Clang's static analysis abilities on the kernel code itself, improving the quality of LLVM and Clang by finding missing/broken compiler features, and improving the overall code quality of the Linux kernel by making the code compatible with more compilers.

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PathScale Is Hiring To Work On Open-Source AMD Drivers

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Graphics/Benchmarks
OSS

PathScale, the company behind the EKOPath compiler and other compiler technologies for both CPUs and GPGPU solutions, is looking to hire one or two kernel developers to work on improving the open-source AMD Linux graphics drivers... Particularly, to improve the GPGPU/OpenCL compute support in the driver, improve the Hawaii GPU and APU support, and potential optimizations for GPUs with 4GB+ of video memory.

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Blender 2.71 Test Release Issued With New Features

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Graphics/Benchmarks
Software

Blender 2.71 with its Cycles rendering now supports fire and smoke rendering, deformation motion blur, various optimizations, and support for NVIDIA Maxwell cards when it comes to CUDA support. Blender 2.71 also adds OpenGL render options to its UI, animation improvements, multi-threaded animations within the Blender Game Engine, and many improvements within the Freestyle NPR Rendering.

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Wayland LiveCD Updated Against v1.5, Uses Systemd On Ubuntu

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Graphics/Benchmarks
Ubuntu

For those looking for an easy way to play with Wayland/Weston 1.5 along with various Wayland-enabled open-source desktop applications, RebeccaBlackOS has been updated.

Rebecca Black OS has been updated against Wayland/Weston 1.5, has Wayland-enabled GTK / SDL / EFL / Qt / KDE Frameworks 5 support, and shell support for Weston, Orbital, Hawaii, GNOME Shell Wayland, Enlightenment, and SWC. FreeRDP support is now enabled for Weston with this new ISO release. Systemd 212 has also been added to the operating system's Ubuntu 14.04 LTS base for better handling of Mutter-Wayland not running as root.

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Wayland 1.5 Is Out and Gets a Little Closer to X Sever Replacement

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Graphics/Benchmarks

Wayland 1.5, a protocol for a compositor to talk to its clients, as well as a C library implementation of that protocol, which can be used as a standalone display server running on Linux kernel modesetting and evdev input devices, has advanced to version 1.5.

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Linux 3.15 Kernel I/O Scheduler Benchmarks

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Graphics/Benchmarks
Linux

After writing yesterday about the BFQ I/O scheduler update with its hopeful intentions of landing within the mainline Linux kernel, some readers wrote in about updated I/O scheduler results... Here they are.

I had some time yesterday on an idle Intel ultrabook system to run some Linux I/O scheduler benchmarks using the latest daily version of the Linux 3.15 kernel in its latest development stage that will be finalized in the weeks ahead. The I/O scheduler tests with a variety of open-source disk benchmarks were done using the default I/O scheduler options of Noop, Deadline, and CFQ.

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Nouveau 2D Rendering Is Much Slower Than Intel SNA

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Graphics/Benchmarks

Besides Nouveau's 3D performance being very slow until re-clocking is figured out, the 2D performance of this open-source NVIDIA Linux graphics driver is also very slow.

As part of the upcoming 50+ way Linux GPU comparison on the open-source graphics drivers, I've also been testing the 2D performance for a follow-up article. From that early-on testing I noticed immediately that the Nouveau performance is rather crippled and bottlenecked.

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Catalyst 14.6 Beta Now Available For AMD Linux Gamers

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Graphics/Benchmarks
Linux

Since writing about the features of the Catalyst 14.6 Beta earlier today, the x86/x86_64 proprietary Linux driver has surfaced on a third-party web-site for those wishing to try out this latest AMD Linux graphics driver.

As explained this morning, Catalyst 14.6 Beta for Linux comes with official Ubuntu 14.04 LTS support, driver installer improvements, and various bug-fixes as the primary changes.

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AMD Catalyst 14.6 Beta Driver Coming Soon To Linux

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Graphics/Benchmarks
Linux

The first beta release of the Catalyst 14.6 proprietary Linux graphics driver will soon be available.

The Catalyst 14.6 Linux driver will introduce official Ubuntu 14.04 LTS support, install improvements by having better defaults and prompting to auto-install the packages generated by the driver, and various bug-fixes are landing.

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High-End NVIDIA GeForce vs. AMD Radeon Linux Gaming Comparison

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Graphics/Benchmarks
Linux
Gaming

After last week carrying out separate NVIDIA Windows vs. Linux OpenGL benchmarks and similar AMD Radeon Windows 8.1 vs. Ubuntu 14.04 tests, today we are pitting the GeForce and Radeon graphics cards against each other on Ubuntu Linux with the very latest drivers to see how their performance compares now head-on. With this testing we have some Steam games plus are also monitoring the power consumption, performance-per-Watt, and GPU thermal metrics.

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Kernel: Linux 4.19 and Security Aspects

  • Some Of The Smaller Features Hitting The Linux 4.19 Kernel This Week
    Here is a look at some of the smaller features landing in the Linux 4.19 kernel this week in a variety of different subsystems.
  • Linux Kernel Diverts Question To Distros: Trust CPU Hardware Random Number Generators?
    In a controversial move, the Linux kernel will be pushing the question off to distribution vendors on whether to put trust in CPU hardware random number generators. Google's Ted Ts'o sent out the random subsystem updates this week for the Linux 4.19 kernel merge window. In addition to the recent change of better protecting entropy sent in from user-space, the decision on whether to trust the CPU hardware random number generators like Intel's RdRand will now be left up to the Linux distribution vendors or end-users having the final say in overriding that decision.
  • L1TF / Foreshadow Mitigations Land In Linux 4.18 / 4.17 / 4.14 / 4.9 / 4.4 Kernel Update
    Linux stable maintainer Greg Kroah-Hartman has released new updates across the Linux 4.18, 4.17, 4.14, 4.9, and 4.4 kernel channels to address the recently exposed L1 Terminal Fault "L1TF" / Foreshadow Meltdown-like CPU vulnerability affecting Intel processors. Linux 4.4.148, 4.9.120, 4.14.63, 4.17.15, and 4.18.1 are all out this morning with their principal changes in these patch releases being the inclusion of L1TF/Foreshadow mitigation. As covered already, the default behavior is to carry out conditional L1D flushes on VMENTER, but there are kernel knobs available for always forcing L1 cache flushes on VMENTER and the full protection of disabling SMP/HT support.
  • Linux 4.19 Goes Ahead And Makes Lazy TLB Mode Lazier For Small Performance Benefit
    Last month I wrote about lazy TLB mode improvements on the way to the mainline kernel and this week the changes were indeed merged for the in-development Linux 4.19 kernel.

ASUS Begins Offering Linux-Based Endless OS On Select Laptops

It has been a while since ASUS last offered any Linux options for laptops, but they appear to have a new effort underway with Endless OS. For those that remember Eee PC from a decade ago, ASUS used to offer some Linux laptops/netbook options that back was using Xandros Linux during the netbook fad... Read more

Games: Fell Seal: Arbiter's Mark, Orwell, Megaquarium, Moonlighter

Gronkowski once again invested a while alon

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