5 June

Windows 10 May 2020 vs. Linux Performance On AMD Ryzen Threadripper

Given the recent release of the Windows 10 May 2020 Update, here are some fresh benchmarks showing how the latest Windows 10 software update paired with the latest AMD drivers performs against the latest 2020 Linux distribution releases. This testing was done on an AMD Ryzen Threadripper 3970X box given the interesting performance differences we have seen in the past to Linux's advantage with these HEDT processors. The Linux distributions tested against Windows 10 May 2020 Update were Ubuntu 20.04 LTS, openSUSE Tumbleweed, Arch-based Manjaro 20.0.2, Clear Linux 33250, and Fedora Workstation 32.

5 June 11:08 AM EDT - Operating Systems - 25 Comments
SVGA Gallium3D Now Exposes OpenGL 4.1 Support

Following VMware making the VMWGFX kernel changes for supporting OpenGL 4.x, the SVGA Gallium3D driver is now exposing OpenGL 4.1 in compatibility profile contexts for this open-source graphics driver used as part of the VMware virtualization stack.

5 June 09:10 AM EDT - Mesa - OpenGL 4.1 - 4 Comments

4 June

Benchmarks Of 2nd Gen AMD EPYC On Amazon EC2 Against Intel Xeon, Graviton2

Today AMD and Amazon announced the general availability of 2nd Gen AMD EPYC "Rome" processors available via the Elastic Compute Cloud. AMD EPYC "Rome" on EC2 with the new "C5a" instance types offer very competitive performance against the latest Intel Xeon instance types, Amazon's own Graviton2 Arm-based instances, and a big upgrade compared to the first-generation EPYC processors in the cloud.

4 June 09:38 PM EDT - Processors - 19 Comments
Fedora 33 Proposal To Allow Packages To Build With LLVM Clang Rather Than Requiring GCC

A feature proposal raised by Red Hat's Jeff Law would allow Fedora packages to be built under the LLVM Clang compiler rather than defaulting that all packages to be built under GCC. Clang-built packages would happen where the upstream software recommends using Clang by default or for software without an upstream to let the packager(s) make their own decision.

4 June 06:35 PM EDT - Fedora - GCC vs. Clang - 31 Comments
GNU Linux-Libre 5.7 Released - Drops Intel iGPU Security Fix Over Arrays Of Numbers

The GNU Linux-libre 5.7-gnu kernel was released following last weekend's Linux 5.7 kernel release. But the info-gnu mailing list was slow and thus just hitting the wire today for the latest version of this sanitized version of the Linux kernel. One interesting change in GNU Linux-libre 5.7-gnu is dropping the Intel Gen7 "iGPU Leak" security mitigation over not liking the sources.

4 June 11:08 AM EDT - Linux Kernel - Linux-Libre 5.7 - 34 Comments

3 June

AMD Zen/Zen2 RAPL Support Merged In Linux 5.8

Complementing the new AMD Energy Driver in the hwmon subsystem for Linux 5.8 to provide per-socket/core reporting, the Linux perf subsystem in this new kernel version has run-time average power limiting (RAPL) framework integration for AMD Zen/Zen2 CPUs.

3 June 07:25 PM EDT - AMD - Runtime Average Power Limiting - Add A Comment
Linux 5.8 Supporting Intel TPAUSE Power-Optimized Delays, TSC Fix When Overclocking

TPAUSE is the new Intel instruction for supporting lightweight power/performance optimized and improved power/performance states for sleeping until the timestamp counter (TSC) has reached a desired value. This new instruction with Intel's Tremont architecture will now be used by Linux 5.8+ on supported CPUs for an optimized power state while waiting on a delay event.

3 June 12:57 PM EDT - Intel - TPAUSE Timer - Add A Comment
Squeezing Extra Performance Out Of The Intel Core i9 10900K With Clear Linux

Besides disabling CPU security mitigations (not recommended if security is of importance), for those wanting to squeeze extra performance out of Intel CPUs like Comet Lake with the Core i9 10900K, loading Intel's performance-optimized Clear Linux is one such way. Here is a look at the current performance that can be gained out of using the latest rolling-release Clear Linux on the i9-10900K in comparison to Ubuntu 20.04 LTS.

3 June 10:20 AM EDT - Operating Systems - 6 Comments
Ubuntu's ZFS Daemon Zsys 0.5 Released

As part of their work on ZFS support improvements for the in-development Ubuntu 20.10, Zsys 0.5 has been tagged and landing in the "Groovy Gorilla" repository for this ZFS daemon spearheaded by Canonical developers.

3 June 12:03 AM EDT - Ubuntu - Zsys 0.5 - Add A Comment

2 June

Devuan 3.0 Released For Debian 10 Without Systemd

Two years after the release of Devuan 2.0 and just a few months since the Beowulf beta, Devuan 3.0 "Beowulf" is now officially available as this Linux distribution providing a Debian package set not dependent upon systemd.

2 June 07:50 PM EDT - Debian - Devuan 3.0 - 45 Comments
iXsystems Announces TrueNAS SCALE As A Linux-Based Offering

While iXsystems has been known as one of the leading FreeBSD-focused vendors with their various BSD-powered storage devices and servers as well as contributing significantly to upstream FreeBSD in addition to their former work on TrueOS/PC-BSD, they are now developing a new platform called TrueNAS SCALE that is based on Linux.

2 June 04:03 PM EDT - BSD - iXsystems - 31 Comments
PHP 8.0 JIT Is Offering Very Compelling Performance Ahead Of Its Alpha

With the PHP 8.0 schedule putting the first alpha release for the middle of June, I've been trying out its latest Git state in recent days for looking at its performance as well as when enabling its brand new JIT (Just In Time) compiler support that is new to PHP8. The results are quite compelling and here are metrics going back to the days of PHP 5.4 for comparison.

2 June 10:00 AM EDT - Software - 15 Comments
Kernel Advancements, Microsoft Linux News Kept Open-Source Fans Entertained In May

During the month of May on Phoronix were 252 original news articles and 20 featured Linux hardware reviews / benchmark specials written by your's truly. This included some surprising announcements from Microsoft, Linux 5.7 getting wrapped up and Linux 5.8 features being firmed up ahead of the now-open merge window, AMD Renoir mobile being a big success, and other milestones for open-source software.

2 June 05:00 AM EDT - Phoronix - May 2020 - 1 Comment

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