Phoronix

If all goes well Linux 5.7 should reach stable this weekend and that in turn will mark the start of the Linux 5.8 merge window. With our monitoring of the various "-next" branches for weeks already, here is a look at some of what is on the table for this next version of the Linux kernel...

Arm today announced the Cortex-A78 as their SoC for next-generation smartphones with up to 20% sustained performance improvements. Arm also announced today the Cortex-X Custom program...

Following the GCC 10.1 compiler optimization benchmarks posted this weekend, a number of readers were wondering about the impact of Profile Guided Optimizations (PGO) on the new GCC 10 compiler. Here are some preliminary data points on that front...

It's coming a few days late but The Qt Company's Lars Knoll just announced the official release of Qt 5.15.0...

Reiser5 was announced back on New Year's Eve with support for local volumes and supporting parallel scaling out and other improvements over the long-in-development but never mainlined Reiser4. While Reiser5 was not met with enthusiasm, Edward Shishkin has continued working on this next-generation file-system and today announced the latest round of improvements...

The crew working on the MSM DRM driver from Freedreno / Google / Code Aurora (Qualcomm) have an interesting batch of changes for this open-source GPU driver for Qualcomm Adreno hardware come Linux 5.8...

With the upcoming Linux 5.8 cycle a quirk is being added to be able to reboot the 2009 era Apple MacBook without needing to boot with any special flags...

Currently if wanting to use Adaptive-Sync/FreeSync variable refresh rate support of the AMDGPU DRM kernel driver you need to be using the xf86-video-amdgpu X.Org driver for proper handling as well, but a port of the DDX bits to the generic xf86-video-modesetting driver is in the works...

One month after the big Phoronix Test Suite 9.6 release, Phoronix Test Suite 9.6.1 is out as the first and only planned point release to this quarter's feature series...

Announced over one month ago was KWinFT as a fork of KDE's KWin with an emphasis on improving the Wayland support and better embracing modern technologies. A beta of KWinFT is now available...

Landing this weekend in hwmon-next ahead of the upcoming Linux 5.8 kernel cycle is the recently reported on "amd_energy" driver for supporting AMD Zen/Zen2 core and package energy sensors...

For several years now GCC has offered a embeddable JIT compiler that for GPL applications can serve as a bytecode interpreter, an experimental Python compiler, and other possible use-cases with this libgccjit library. There now are patches pending for bringing libgccjit to Windows...

An interesting anecdote shared in today's Linux 5.7-rc7 announcement is word that Linux and Git creator Linus Torvalds switched his main rig over to an AMD Ryzen Threadripper...

While last week's Linux 5.7-rc6 kernel was quite big, Linux 5.7-rc7 is out today and it's on the smaller side of things in reassuring Linus Torvalds that the stable release of this kernel can happen soon...

Stemming from recent kernel discussions over a hypothetical new system call for reading small files more efficiently, Greg Kroah-Hartman has been working on the readfile() system call and it's looking like it is taking shape well enough to premiere soon in a new mainline kernel release...

For those AMD Ryzen laptop users eager to see the Sensor Fusion Hub driver for supporting the different hardware sensors on these AMD Zen laptops, that driver still isn't going to be merged for the upcoming Linux 5.8 cycle even after the patches were first published months ago...

While modern AMD EPYC CPUs support Secure Encrypted Virtualization (SEV) and Intel more recently has been working on MKTME for similarly offering hardware-backed total memory encryption, an Intel open-source engineer has now proposed a software-based solution for protected memory support for KVM virtualization...

Ardour 6.0 is now available as the latest major release of this high-end yet open-source digital audio workstation (DAW) package that runs across all major platforms...

NVIDIA on Friday released Nsight Graphics 2020.3 as the newest version of their proprietary tool for profiling and debugging Direct3D / Vulkan / OpenGL / OpenVR software...

TUXEDO Computers has launched their first AMD-powered Linux laptop! The excitement quickly faded though when seeing it's not a Renoir design...

There is a lot of wireless (and wired) networking activity each kernel cycle but for the upcoming Linux 5.8 merge window it looks like there will be particularly a lot for MediaTek drivers...

The first beta of the forthcoming PostgreSQL 13.0 is now available for evaluation. PostgreSQL 13 is coming with many new features with this article serving as a quick look plus some very preliminary benchmarks...

Published back in February were the Linux kernel enablement patches for a new "ComboPHY" driver for supporting the company's forthcoming Gateway SoC. That code is now set to be included in the next kernel cycle, Linux 5.8...

Linux I/O expert Jens Axboe who oversees the kernel's block layer and is employed by Facebook while working on IO_uring and other storage innovations has recently been working on async buffered reads support...

This week marked the release of the dav1d 0.7 AV1 video decoder with more performance optimizations thanks to more hand-tuned Assembly and other tweaking of this leading CPU-based AV1 video decoder. Here are benchmarks compared to the prior dav1d 0.5 and 0.6 releases...

With KDE Plasma 5.19 due for its stable release in early June, development efforts are beginning to focus on Plasma 5.20 for release later this year...

With the recently minted GCC 10 compiler there was a request to see some fresh benchmarks at different compiler optimization levels and flags like LTO...

Just hours after the release of Wine 5.9, the latest staging release is now available that is re-based to the latest upstream while continuing to toss in over eight hundred extra patches...

While MIPS Release 6 is the latest version of the MIPS ISA, the MIPS Release 5 support is finally set to be mainlined with the upcoming Linux 5.8 kernel cycle...

While still on the Solaris 11.4 series and no signs of major advancements beyond it, SRU21 was released this week by Oracle with quite a number of package updates...

Intel is extending their Dynamic Platform and Thermal Framework (DPTF) Linux support with battery participant device support...

Wine 5.9 is out as the latest bi-weekly development release for this software allowing Windows games and applications to generally run quite gracefully on Linux...

When it comes to the support for AMD Ryzen 4000 "Renoir" laptop support under Linux, as outlined in my testing so far this month the main caveat is needing Linux 5.6~5.7 for good graphics support but on the likes of Ubuntu 20.04 LTS with Linux 5.4 you will not have GPU acceleration. At least in the case of the Lenovo IdeaPad 5 I have been using to test, you also need Linux 5.7 Git for battery sensor support. Another item that in turn is coming with Linux 5.8 is CPU temperature reporting for the Renoir processors...

Last week Amazon AWS promoted their Graviton2 instances to general availability status with a variety of different sized EC2 instances as well as a bare metal instance for tapping the full potential of their new SoC that features 64 Arm Neoverse N1 cores. Last week we ran through many benchmarks looking at Graviton2 on EC2 and bare metal performance while here is a follow-up article with more benchmarks and looking at how the sixty-four core Arm Graviton2 compares to AMD's EPYC 7742 64-core CPU with and without SMT.

The Linux kernel patches that have been spearheaded by Amazon AWS engineers to optionally flush the L1 data cache on each context switch have now been queued in the x86/mm branch ahead of the upcoming Linux 5.8 kernel cycle...

There hasn't been too much to report on the open-source NVIDIA "Nouveau" kernel driver in some time since the enabling of Turing and no apparent progress on re-clocking to allow the graphics cards to hit their rated clock frequencies (the longstanding, number one limitation for this open-source driver), but some changes were sent in today for the upcoming Linux 5.8 kernel merge window...

Allwinner Tech has prepared their initial Linux kernel patches for bringing up the A100 SoC. The A100 SoC is one of their newest tablet-focused SoCs moving forward...

Facebook's compression experts responsible for Zstandard have today released Zstd 1.4.5 with more performance improvements...

Beyond the usual excitement of numerous x86 and Arm hardware advancements each cycle, Linux 5.8 is bringing new IBM POWER enablement work...

Adding to Microsoft's wild ride this week after announcing Linux GUI apps for WSL2 and in turn writing their own Wayland compositor, Direct3D sort of for WSL2/Linux, and other announcements out of BUILD 2020, the company has announced the open-sourcing of their original BASIC implementation...

Last month we reported on Wine's Direct3D Vulkan back-end seeing new activity as an alternative to the project's mature Direct3D-to-OpenGL path. Over the course of May work on this Vulkan back-end has edged only even higher...

TPAUSE is the new instruction supported by Intel's Tremont microarchitecture and beyond. TPAUSE allows for an optimized state that can provide low wake-up latency compared to existing delay mechanisms. With Linux 5.8, the kernel will begin making use of TPAUSE where supported...

The VideoLAN team responsible for the dav1d AV1 video decoder have just released dav1d 0.7 as the newest feature release and it comes with more performance optimizations...

While most of you are well aware how Linux often slaughters Microsoft Windows performance on high-end desktop and platform servers with large core counts, on smaller systems it can be a different story and often comes down to the particular workloads and any peculiarities of the hardware under test. With recently buying the Lenovo IdeaPad 5 (14) for our AMD Ryzen 7 4700U Linux benchmarking, here are some benchmarks for how that Zen 2 laptop is comparing with different workloads between Windows 10 and Ubuntu 20.04 LTS.

While Red Hat Enterprise Linux deprecated Btrfs and no longer supports it on RHEL8, Oracle does continue supporting this Linux file-system on their RHEL-based Oracle Linux when using the company's "Unbreakable Enterprise Kernel" alternative to their Red Hat Compatible Kernel. An Oracle engineer put out a lengthy post outlining the highlights of Btrfs in their new Unbreakable Enterprise Kernel 6...

For reasons currently unknown, Intel released new CPU microcode on Wednesday for their Sandy Bridge processors...

In addition to working on easy ZFS encryption for Ubuntu 20.10, the Ubiquity installer in its latest code for this next Ubuntu Linux release is now enabling TRIM by default for all Zpools...

A patch slated to be merged for the Linux 5.8 kernel cycle next month that simply deletes ten lines of code (well, six lines of code and four lines of comments) will for some systems yield "significant power savings" due to an oversight in the kernel code that has lasted for about twelve years...

As a result of increased bug reports where Linux users are reporting Intel graphics hangs but not including the most pertinent details like the Mesa version, the Intel Mesa drivers are now embedding the driver name and Mesa version as part of their error state...

For months now Intel's open-source driver developers have been working on the "Gen12" graphics support needed most notably for Tiger Lake and more recently is also confirmed for Rocket Lake. But Gen12 is also needed for the highly anticipated Xe Graphics with the discrete graphics offerings to come in the months ahead by Intel. Building off the existing Gen12 graphics driver code, Intel today published the first DG1 patches for enabling their first discrete graphics card under Linux...