Dell XPS Ice Lake Taking A Wallop On Ubuntu 20.04

With our early benchmarking of Ubuntu 20.04 in its current nearing the end of development state, we've been seeing Ubuntu 20.04 boosting Intel Xeon Scalable performance, running well with AMD EPYC Rome, and good AMD Ryzen performance, among other tests. Strangely though the one platform where I've found Ubuntu 20.04 hard regressing so far is with the Dell XPS 7390 Ice Lake.

3 Hours Ago - Ubuntu - Ubuntu 20.04 Slowdown - 3 Comments

3 April

Ada++ Wants To Make The Ada Programming Language More Accessible

Ada is a beautiful programming language when it comes to code safety with it continuing to be used by aircraft and other safety critical systems. There is now Ada++ as an unofficial fork of the language focused on making the language more accessible and friendlier in an era of the likes of Rust and Golang attracting much interest.

3 April 03:02 PM EDT - Programming - Ada++ - 29 Comments
LLVM Lands Performance-Hitting Mitigation For Intel LVI Vulnerability

Made public in March was the Load Value Injection (LVI) attack affecting Intel CPUs with SGX capabilities. LVI combines Spectre-style code gadgets with Meltdown-type illegal data flows to bypass existing defenses and allow injecting data into a victim's transient execution. While mitigations on the GNU side quickly landed, the LLVM compiler mitigations were just merged today.

3 April 09:24 AM EDT - Software - 20 Comments
Ubuntu 20.04 LTS Beta Released

For those with extra time on their hands due to being at home and social distancing, Canonical released the Ubuntu 20.04 LTS beta today for testing.

3 April 09:18 AM EDT - Ubuntu - Ubuntu 20.04 Beta - 30 Comments

2 April

System76 Thelio Major Proves To Be A Major Player For Linux Workstations

For the past two months we have been testing the System76 Thelio Major and it's been working out extremely well with performance and reliability. The Thelio Major offering with options for Intel Core X-Series or AMD Ryzen Threadripper and resides between their standard Thelio desktop with Ryzen/Core CPUs and the Thelio Massive that sports dual Intel Xeon CPUs.

2 April 01:20 PM EDT - Computers - 7 Comments
LLVM Plumbs Support For Intel Golden Cove's New SERIALIZE Instruction

Yesterday we noted Intel's programming reference manual being updated with new Golden Cove instructions for Sapphire Rapids and Alder Lake and with that Intel's open-source developers have begun pushing their changes to the compilers. The latest updates add TSXLDTRK, a new HYBRID bit for Core+Atom hybrid CPUs, and a new SERIALIZE instruction. After GCC was receiving the patch attention yesterday, LLVM is getting its attention today.

2 April 07:07 AM EDT - LLVM - Intel SERIALIZE - 1 Comment
SELinux Seeing Performance Improvements With Linux 5.7

A few months back when we last looked at the performance impact of having SELinux enabled there was a hit but not too bad for most workloads. But we'll need to take another look soon as with the Linux 5.7 kernel are some performance improvements and more for SELinux.

2 April 01:29 AM EDT - Linux Security - Linux 5.7 SELinux - 5 Comments

1 April

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