Earlier this month marked the release of the AMD Optimizing C/C++ Compiler 1.3 (AOCC 1.3) with a re-base to the LLVM 7.0 code-base, enhanced loop optimizations, better vectorization, code generation, integration of the optimized AMD Math Library, and other enhancements. Here are some fresh benchmarks against AMD AOCC 1.3 against LLVM Clang 7.0 upstream as well as GCC 8.2.0.
While waiting for the release of Warhammer II today, Feral Interactive just announced they will be releasing Shadow of the Tomb Raider for Linux (and macOS) in 2019.
It appears AMD is stepping up their game around the open-source AMDVLK Vulkan Linux driver with moving to tagged releases and better release notes.
Linux file-systems continue getting better along with the infrastructure around it in the VFS and block code, but still there are some pain points for both users and developers around Linux storage.
The third and possibly final development release of the upcoming Phoronix Test Suite 8.4-Skiptvet is now available for testing of our open-source, cross-platform testing and benchmarking framework.
Intel's Clear Linux distribution is making progress on their new installer, including the ability to (finally) carry out encrypted installations.
DragonFlyBSD developer Justin Sherrill has shared that DragonFlyBSD 5.4 release preparations will begin soon.
An improvement was merged today to GNOME's Mutter compositor / window manager that should allow it to perform much better in multi-GPU setups, particularly for scenarios where the display is driven via a USB-based DisplayLink adapter.
GNU OrgaDoc is a means of copying and maintaining a pool of documents between a set of computers. Document synchronization is handled by rsync or unison and is done without needing a database server or other components.
Samuel Pitoiset of Valve's open-source Linux graphics driver team has landed a patch providing another optimization around fast clears for the Radeon "RADV" Vulkan driver within Mesa 19.0.
For those wishing to learn more about the LLVM compiler stack and open-source compiler toolchains in general, the videos from October's LLVM Developers' Meeting 2018 in San Jose are now online.
Given last week's new images release of the rolling-release, systemd-free, original-creation Void Linux I decided to take it for a spin with some fresh benchmarking as it had been two years or so since last trying out that Linux distribution with its XBPS packaging system. For seeing how the performance compares, I benchmarked it against some of the other primarily enthusiast/rolling-release/performant Linux distributions including Antergos, Clear Linux, Debian Buster Testing, Fedora Workstation 29, Manjaro 18.0, Sabayon Linux, Solus, and Ubuntu 18.10.
It turns out that Linus Torvalds himself was even taken by surprise with the performance hit we've outlined on Linux 4.20 as a result of STIBP "Single Thread Indirect Branch Predictors" introduction as well as back-porting already to stable series for cross-hyperthread Spectre V2 protection. He doesn't want this enabled in full by default.
Collabora developer Scott Anderson sent out a "request for comments" patch series that would add a Secure Output Protocol to the Wayland space.
Heterogeneous Memory Management is the effort going on for more than four years that was finally merged to the mainline Linux kernel last year but is still working on adding additional features and improvements. HMM is what allows for allowing the mirroring of process address spaces, system memory to be transparently used by any device process, and other functionality for GPU computing as well as other device/driver purposes.
Back when Huawei introduced the EROFS Linux file-system earlier this year, there wasn't any open-source user-space utility for actually making EROFS file-systems. Even when EROFS was merged into the mainline tree, the user-space utility was still non-existent but now that issue has been rectified.
If you are/were a fan of Ubuntu's Unity desktop environment, Unite-Shell is one of the most promising efforts to date for making the current GNOME 3 stack more like Unity.
OpenCV 4.0 is now officially out as the widely-used real-time computer vision library.
Linus Torvalds just announced the release of Linux 4.20-rc3 as his weekly test release update to the in-development Linux 4.20.
It's been a busy past few days of benchmarking after discovering earlier this week the Linux 4.20 performance was dropping, bisecting the cause to be the introduction of STIBP for cross-hyperthread Spectre V2 mitigation, and seeing just how significant is the impact. Here are my latest tests and findings.
If you are hoping to pick-up a new graphics card during the upcoming holiday sales, here is a 20-way NVIDIA GeForce and AMD Radeon Linux gaming benchmark comparison using a wide assortment of GPUs while using the very newest graphics drivers and a variety of OpenGL/Vulkan titles.
Continuing to make Sunday mornings more entertaining are new Vulkan documentation updates on their weekly-ish update cycle.
LibreOffice 6.2 was branched from master this weekend and the first beta release tagged for this open-source, cross-platform office suite.
With the launch this week of the Raspberry Pi 3 Model A+, they made it clear whatever comes next will be a big re-design compared to all of the Raspberry Pi ARM single board computers up to this point. So what would you hope they incorporate into the next-generation of these low-cost boards?
It's been another busy week in the KDE development space ahead of the holidays and developer Nate Graham has done another great job detailing all of the changes made over the past week for this open-source desktop environment.
The first release candidate of the upcoming FreeBSD 12.0 operating system update is available for testing this weekend.
Intel developers have been punctual in their bring-up of Icelake support within Coreboot.
It turns out Google's recently announced Pixel 3 smartphone is making use of the MSM Direct Rendering Manager driver associated with the Freedreno open-source Qualcomm graphics project. Google is also getting more Android vendors moving over to using DRM/KMS drivers to power their graphics/display.
As outlined yesterday, significant slowdowns with the Linux 4.20 kernel turned out to be due to the addition of the kernel-side bits for STIBP (Single Thread Indirect Branch Predictors) for cross-HyperThread Spectre Variant Two mitigation. This has incurred significant performance penalties with the STIBP support in its current state with Linux 4.20 Git and is enabled by default at least for Intel systems with up-to-date microcode. Here are some follow-up benchmarks looking at the performance hit with the Linux 4.20 development kernel as well as the overall Spectre and Meltdown mitigation impact on this latest version of the Linux kernel.
At this week's Linux Plumbers Conference, David Airlie began talking about the possibility of a vendor-neutral compute stack across Intel, Radeon, and NVIDIA GPU platforms that could potentially take on NVIDIA's CUDA dominance.
While Con Kolivas' kernel patch series decided to do away with BFQ support, the GNOME-aligned Endless OS Linux distribution has decided to do the opposite in move from CFQ as the default I/O scheduler over to BFQ.
Earlier this month AMD quietly released a new version of their Optimizing C/C++ compiler in the form of AOCC 1.3. This new compiler release has more Zen tuning to try to squeeze even more performance out of Ryzen/EPYC systems when using their LLVM-based compiler.
Following the recent application period, Outreachy on Thursday announced the dozens of selected participants who will have a $5500 USD paid internship the next few months for working on open-source projects.
Back in September Code Sourcery / Mentor Graphics posted the Radeon GCC back-end they have been developing with the cooperation of AMD. This is for allowing the GCC compiler to eventually offload nicely to Radeon GPUs with its different programming languages and supported parallel programming models, particularly with OpenMP and OpenACC in mind. But for now this patch series just works with single-threaded C and Fortran programs. The second version of this port was posted for review.
Ubuntu's little known EGMDE example Mir desktop that is mostly a proving grounds for Mir development is now receiving support for XWayland for being able to run X11 applications within this example environment.
While the Radeon RX 590 that launched this week is just yet another Polaris refresh, it turns out the open-source AMD Linux graphics driver stack isn't yet playing well with retail RX 590 graphics cards. This is quite a surprise considering the PCI ID was picked up months ago and the mature Polaris Linux driver support for quite a while now, but could be like the rough Raven Ridge Linux experience where the production cards with the shipping vBIOS isn't what the developers encountered during their pre-production driver enablement.
GNOME 3.31.2 is out this Friday as the latest development release in the trek towards next March's GNOME 3.32 release.
After running a lot of tests and then bisecting the Linux 4.20 kernel merge window, the reason for the significant slowdowns in the Linux 4.20 kernel for many real-world workloads is now known...
Feral Interactive has just announced that Total War: WARHAMMER II will be released for Linux (and macOS) next week.
Mesa release manager Emil Velikov has announced the latest weekly release candidate of the upcoming Mesa 18.3.
After releasing the Raspberry Pi 3 Model A+ yesterday, the Raspberry Pi Foundation today announced Raspbian 2018-11-13 as the latest update to their Debian-based Linux distribution for these low-cost ARM SBCs.
While we know ROCm 2.0 is coming out before year's end and that will have many improvements like complete OpenCL 2.0 support, ROCm 1.9.2 is out today as the latest stable release for this Radeon Open Compute stack.
Last night I published some benchmarks after finding Linux 4.20 is regressing in several workloads compared to Linux 4.18/4.19 and at least was affecting Intel Core i9 "HEDT" boxes. Here are more affected workloads regressing on Linux 4.20 and it's not just limited to high-end hardware.
There are many Sandy Bridge era motherboards that have been freed by Coreboot while if you are looking for more options on something (slightly) newer, a micro-ATX Haswell-era motherboard from ASRock now works under this open-source BIOS implementation.
As part of The Qt Company's ongoing improvements to their tool-kit and with Qt 5.12 being an LTS release, this cycle they focused a lot on improving the performance.
After what feels like an eternity in waiting years for Mozilla to ship their Firefox web-browser with native Wayland support enabled, their latest Firefox Nightly builds have achieved this milestone.