Open-source News

NVIDIA engineers have been working on NUMA distance metrics within the Linux kernel to replace the simple local/remote NUMA preference interface currently used by some drivers for NUMA-aware memory allocations. In their testing this improved NUMA distance handling is leading to "significant performance implications" for throughput and CPU utilization...

NVIDIA engineers have been working on NUMA distance metrics within the Linux kernel to replace the simple local/remote NUMA preference interface currently used by some drivers for NUMA-aware memory allocations. In their testing this improved NUMA distance handling is leading to "significant performance implications" for throughput and CPU utilization...

NVIDIA Improving Linux NUMA Distance Interface To Enhance Performance  Phoronix

NVIDIA Improving Linux NUMA Distance Interface To Enhance Performance  Phoronix

Install Emacs 27 text editor Ubuntu 22.04 LTS Jammy  Linux Shout

Linux Software: Market 2022 – What Factors will drive the Market in Upcoming Years | Google, Twitter, IBM, RedHat – Travel Adventure Cinema  Travel Adventure Cinema

How to Uninstall Deb Packages in Ubuntu Linux  It's FOSS

5 tips for securing SSH on your Linux servers  TechRepublic

The 6 Best Linux Camera Apps to Get the Most Out of Your Webcam  MUO - MakeUseOf

Following the recent discussions about -O3'ing the Linux kernel and other compiler optimizations, a request came in to see some fresh GCC compiler optimization benchmarks with the recently released GCC 12. So here is a fresh look at various GCC optimization levels up through -Ofast as well as with link-time optimizations (LTO) and "-march=native" tuning on the new GCC 12 with the mature AMD Ryzen Threadripper 3990X platform.

1. Apple Silicon Linux project gets initial Mac Studio & M2 support  AppleInsider
2. Linux distro for Apple silicon Macs is already up and running on the brand-new M2  Ars Technica
3. Asahi Linux now supports M2 Apple Macs  Geeky Gadgets
4. Asahi Linux Now Supports Mac Studio and M2 MacBooks  The Mac Observer
5. Asahi Linux adds support for Macs with M2 chips  Liliputing
6. View Full Coverage on Google News

Apple Silicon Linux project gets initial Mac Studio & M2 support  AppleInsider

Added to Intel's documentation in late 2020 and initial kernel patches out since early 2021, Intel has been slowly working on Linear Address Masking (LAM) support for the Linux kernel. Out this past week was finally the latest iteration of this work for leveraging untranslated address bits of 64-bit linear addresses to be used for storing arbitrary software metadata...

Intel Revs Its Linear Address Masking Patches For Linux  Phoronix

A feature supported by the GNU Compiler Collection (GCC) that sadly isn't used more often is function multi-versioning (FMV) for supporting multiple versions of a function with the given function selected based upon the target processor in use. GCC FMV on x86_64 allows for different functions to be used whether supporting SSE4.2, AVX, or even a particular CPU micro-architecture. Arm is finally working on GCC function multi-versioning support for AArch64...

Nadav Amit who previously spearheaded work on reducing unnecessary TLB flushes, concurrent TLB flushes, and other low level optimizations over the years. The latest work is now on "relaxed" TLB flushes as another low-level performance improvement...

Relaxed TLB Flushes Being Worked On For Linux As Another Performance Optimization  Phoronix

Relaxed TLB Flushes Being Worked On For Linux As Another Performance Optimization  Phoronix

Yesterday marked the release of LightDM 1.32 as the first official release of this display manager since 2019...

How to install Emacs 27 text editor Ubuntu 20.04  Linux Shout