Open-source News

In Light Of Spectre BHI, The Performance Impact For Retpolines On Modern Intel CPUs

Phoronix - Thu, 03/10/2022 - 22:30
Made public on Tuesday was BHI / Spectre-BHB as the newest offshoot from Spectre V2. There were Linux patches immediately posted for affected Intel and Arm processors while also making adjustments to AMD CPUs around its Retpoline handling. The VUSec security researchers that discovered BHI are recommending Retpolines be enabled for newer processors even those with hardware mitigations against Spectre V2, but that's that performance cost? Here are some initial benchmarks.

AMD Posts New Linux Code For Zen 4's UAI Feature

Phoronix - Thu, 03/10/2022 - 20:30
AMD posted this morning a new Linux kernel patch series for enabling a new feature for "upcoming processors" that is almost definitively for Zen 4, continuing their work in recent weeks around more open-source patches in preparing for their next-generation processors...

Linux 5.18 Plans To Switch From C89 To C11/GNU11 C Version

Phoronix - Thu, 03/10/2022 - 20:00
When Linus Torvalds gets motivated and behind kernel changes, they tend to happen more quickly, with the latest example being the switching from the C89 language standard to C11 (GNU11). That change is now expected early on for the Linux 5.18 merge window...

The Most Interesting New Features Of Linux 5.17 - Intel & AMD Continue With Big Changes

Phoronix - Thu, 03/10/2022 - 19:00
Assuming nothing major comes up in the next few days, the Linux 5.17 kernel is expected to be released on Sunday. While we have been covering Linux 5.17 kernel activity already for a while prior to the merge window even getting going, here is a convenient look at some of the most interesting changes to find in this new release...

Intel's Linux Graphics Driver Improving DRRS Support For Better Power-Savings

Phoronix - Thu, 03/10/2022 - 18:29
A set of 13 patches were posted overnight for improving the Intel Linux kernel graphics driver's handling of the power-savings feature Display Refresh Rate Switching (DRRS) for laptops...

AmigaOS-Like MorphOS 3.16 Released With Better Performance

Phoronix - Thu, 03/10/2022 - 18:03
MorphOS as the AmigaOS-like operating system now in development for more than two decades and targeting PowerPC hardware is out with version 3.16 as its first major release in over a year...

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