Phoronix

Recently the CentOS Board met for the first time since the recent CentOS 8.0 and CentOS Stream releases. It was an interesting outcome...

While the release of Linux 5.3-ck1 with MuQSS was quite tardy and only arrived a few weeks ago, Con Kolivas has returned to his punctuality in releasing Linux 5.4-ck1 with the updated MuQSS scheduler intended to improve the responsiveness of desktop/mobile class Linux systems...

Simon Ser has stepped up again to manage the upcoming release of the Weston 8.0 Wayland reference compositor. No Wayland update itself is planned with nothing real to release at this point, but Weston 8.0 should arrive before the end of January...

The RISC-V kernel code has some interesting changes ready for Linux 5.5...

As covered earlier this month, the next version of the Linux kernel is finally offering mainline support for SGI's Octane / Octane II MIPS workstations from the SGI IRIX days about two decades ago. Not only is the vintage SGI IP30 hardware seeing mainline kernel support, but there is other new MIPS hardware support too...

The X.Org Server and its integrated "modesetting" DDX driver that is most commonly used on modern Linux systems in place of hardware-specific DDX drivers is finally getting more robust with xorg-server 1.21... It will no longer rely upon the server's PCI ID driver mapping for figuring out the DRI driver to load as needed for GLAMOR 2D acceleration over OpenGL...

It's that time of the year for our annual promotion of Phoronix Premium for the US Thanksgiving / Black Friday / Cyber Monday sales week... Here is the latest on how you can show your support for our Linux and open-source news coverage and benchmarking while enjoying the site ad-free, multi-page articles on a single page, and other benefits...

Just under three months past Lutris 0.5.3 as this open-source game manager/platform tool particularly for Wine-based gaming outside of Steam, Lutris 0.5.4 is now available in getting Linux gamers ready for any extra holiday-time gaming...

While AMD announced ROCm 3.0 earlier this month at SuperComputing 19 as the next major iteration to Radeon Open Compute, it looks like they aren't quite ready to ship it and instead released ROCm 2.10...

The Linux 5.2 kernel and newer appears to be suffering from an AVX register corruption bug stemming from signal delivery. This register corruption issue is manifesting itself at least for Golang programs leading to a variety of bug reports when running on Linux 5.2 through at least the newly-minted Linux 5.4...

While the Motorola 68000 32-bit processors are from the 80's and early 90's, there still is a loyal following of hobbyists who managed to save the "m68k" compiler back-end from being removed in GCC 11...

As part of the sound subsystem updates coming with the Linux 5.5 kernel is wake-on-voice capabilities with newer Google Chromebook device hardware...

For several release cycles already the Linux kernel has supported Intel's 5-level paging for increasing the virtual and physical address space available to systems while for Linux 5.5 the five-level support is being enabled by default...

Currently Fedora Linux supports empty passwords for local users by default but that could change with next year's Fedora 32 release...

A few weeks back AMD published a TEE "Trusted Execution Environment" driver for APUs on Linux for utilizing the controversial AMD Secure Processor...

The FreeBSD Q3-2019 quarterly report is now available. One of the interesting bits from this report is the FreeBSD Foundation planning to buy one or more families of new laptops to supply to their core developers in working to improve the modern hardware support...

Last week marked the release of Blender 2.81 with one of the shiny new features being the OptiX back-end for the Cycles engine to provide hardware-accelerated ray-tracing with NVIDIA RTX graphics processors. Long story short, OptiX is much faster for Blender than using NVIDIA's CUDA back-end -- which already was much faster than the OpenCL support within Blender. For your viewing pleasure today are benchmarks of 19 different graphics cards looking at the CUDA performance from Maxwell to Pascal to Turing and then for the RTX graphics cards also the OptiX performance.

Ingo Molnar sent in the kernel's scheduler changes along with the other material he is overseeing for Linux 5.5. With this next version of the Linux kernel comes a rework to the Completely Fair Scheduler's load balancing logic. This is helping some workloads at least but with the intrusive change runs the risk of possible regressions...

While the Radeon "ACO" compiler back-end performance is already looking very good in the speed department over the AMDGPU LLVM back-end for the Vulkan driver as shown in recent benchmarks, it's getting even better...

Since 2016 the Linux kernel on ARM has invoked the EFI random number generator (RNG) protocol for serving as an additional source of entropy during early boot. With Linux 5.5 in early 2020 that code is finally happening for x86/x86_64...

Intel's crew maintaining the Scalable Video Technology open-source video encoders on Monday issued a new pre-release of SVT-AV1 in an effort to further speed-up AV1 video encoding on CPUs...

The cryptography subsystem changes for the Linux 5.5 kernel are notable...

The Fedora Workstation working group has been weighing the matter of the GNOME Software "app store" recommending/promoting proprietary software. But this isn't something that is done out-of-the-box but rather when activating Flathub where Flatpaks can be installed for both open and closed-source software...

Devuan 2.1 is available as the latest release of this spin of Debian GNU/Linux that works without a dependence on systemd. Devuan 2.1 remains focused on "init freedom" though this new release is still tracking the older Debian 9 "Stretch" branch...

The in-development Linux 5.5 kernel will begin sanity checking the RdRand instruction output for randomness on CPU boot/resume due to the recent spat of AMD CPUs that have yielded non-random RdRand output...

Adding to the list of changes on deck for the Linux 5.5 kernel is a new "sanitizer" for spotting data race conditions...

After the embargo on the Intel Core i9 10980XE expired a few hours ago, now we are allowed to share the performance numbers on the new AMD Ryzen Threadripper 3960X and 3970X processors. These new Zen 2 HEDT CPUs pack a real performance punch, but do come in as more expensive than the i9-10980XE and there is one boot-stopping Linux bug to mention with a workaround... But besides that lone Linux support caveat, the Threadripper 3960X and Threadripper 3970X absolutely dominate in performance.

As outlined in our AMD Ryzen Threadripper 3960X / 3970X Linux review, these new Zen 2 Threadripper processors are phenomenal processors that offer significant uplift over earlier Threadripper CPUs and easily dominate over Intel's Core i9 HEDT competition. But there is one big issue right now with the Linux support: on Ubuntu and the like, it doesn't boot without a workaround. Here's that workaround for easy future reference...

Vulkan 1.1.129 is out this morning as another weekly update to this graphics API specification and in tow comes one new extension...

Months ago we reported on vendors and cloud providers being interested in restoring parallel CPU microcode updates on Linux for helping large core count servers. With Linux 5.5 that change is coming...

Just hours after Linus Torvalds released Linux 5.4, the GNU folks maintaining "GNU Linux-libre" released their v5.4 kernel that continues "deblobbing" the kernel for ensuring no proprietary firmware/microcode can be loaded by the drivers nor support for loading closed-source kernel modules...

Last month Valve's open-source Linux GPU driver developers introduced a "secure compile" feature to the Radeon Vulkan driver to do just as the name implies and making use of SECCOMP filters for enforcing the security aspect. They have now revised this implementation in order to provide faster shader compile times...

Intel today is rolling out the Core i9 10980XE as their new Cascade Lake X-Series processor that features 18 cores / 36 threads with a maximum turbo frequency of 4.6GHz and TBM 3.0 frequency of 4.8GHz. Following a last minute change, Intel moved up the embargo lift time of the Core i9 10980XE so here are the results we can share with you right now.

With the Linux 5.5 kernel now in development the Habana Labs AI startup is preparing for supporting future chips with their open-source Linux kernel driver...

The UBports community developers maintaining Ubuntu Touch have landed the 64-bit ARM (ARM64/AArch64) version of libhybris into their "Edge" development branch. This in turn opens up Ubuntu Touch to more easier porting to newer Android devices...

Linus Torvalds has officially released the Linux 5.4 "Kleptomaniac Octopus" kernel this evening as was expected. Linux 5.4 is the last major stable kernel release of the year and brings a lot of new hardware support particularly on the graphics processor front, Microsoft exFAT support is finally available, and a plethora of other new features and improvements to existing functionality...

GNOME 3.35.2 is out as the latest development release on the route to GNOME 3.36 due out next March...

While NVIDIA graphics in IBM POWER systems have been known to make a powerful combination for supercomputer deployments, for those wanting a libre GPU compute experience can also use POWER with AMD Radeon's open-source driver with a pending patch to the kernel driver...

Following the initial tests earlier this month from the disclosures of the JCC Erratum (Jump Conditional Code) that required updated Intel CPU microcode to address and on the same day the TSX Async Abort (TAA) vulnerability that required kernel mitigations to address, which I have run benchmarks of those CPU performance impacts individually, readers have requested tests looking at the current overall impact to the mitigations to date.

As part of the KSelfTest updates sent in early for the Linux 5.5 merge window opening tonight/tomorrow, Google's KUnit is included in this pull request as the basic kernel unit testing framework...

For the imminent Linux 5.5 kernel cycle we have talked about exciting AMD Radeon and Intel graphics driver changes on deck from Navi OverDrive overclocking to more Intel Tiger Lake and Jasper Lake bits, AMDGPU HDCP support, and other features queued. But what about the open-source NVIDIA "Nouveau" Linux driver?..

It was a busy week in the KDE space...

GNUstep, the longstanding GNU Project implementing Apple's Cocoa frameworks, might end up deprecating support for the GNU Compiler Collection (GCC) to focus its compiler support on LLVM's Clang...

Catalin Marinas who oversees the 64-bit ARM (ARM64 / AArch64) architecture code within the mainline kernel has already submitted his pull request early for the Linux 5.5 kernel cycle beginning tonight or early on Monday...

In addition to Oracle having shipped a Solaris update this past week, prior to calling it a weekend their virtualization crew released VirtualBox 6.1 RC1...

With the Jump Conditional Code (JCC) Erratum that was made public earlier this month and ushered in new Intel microcode to mitigate this Skylake to Cascade Lake design defect, compiler/toolchain patches have been in the works to help offset the performance cost incurred from the updated microcode. Besides the GNU Assembler work we've talked about several times since JCC came to light, the LLVM folks have also been reviewing their comparable changes...

Over the years at Phoronix we have easily close to forty if not more Rosewill 2U and 4U sever cases... Rosewill's server cases have been among the best value enclosures when not needing any extra features like hot-swap bays, etc. For under $100 USD, their Rosewill 4U cases have been a favorite due to the cost yet good quality, fan filter, etc. A new revision out this summer is the Rosewill RSV-4310 that appears to have replaced the likes of the RSV-R4000. The RSV-4310 4U enclosure does bring some nice minor updates to the base enclosure we've come to know and appreciate though is more costly.

David Sterba sent in his pull request early of the Btrfs file-system changes that are ready for merging into the Linux 5.5 merge window next week...

We have done a lot of benchmarks on Intel/AMD x86_64 for Ubuntu 19.10 for seeing how its performance is looking, but what about IBM POWER9 with the likes of the libre Raptor Blackbird? Here are some Ubuntu 19.04 vs. 19.10 POWER benchmarks I recently carried out...

A few weeks back I wrote about NVIDIA's Nitin Gupta working on proactive memory compaction for the Linux kernel to more proactively compact memory rather than doing so on-demand when it can lead to high latencies for applications needing lots of huge-pages...