Bcachefs Merges Support For Btrfs-Like Snapshots

It's been a while since having any news to report on Bcachefs as the promising open-source file-system born out of the Linux kernel's block cache code. However, Kent Overstreet continues working tirelessly on it and has now merged Bcachefs' snapshot support.

97 Minutes Ago - Linux Storage - Bcachefs Snapshots - 6 Comments
MediaTek Hoping To Bring nanoMIPS Support Upstream Into GCC

The nanoMIPS architecture that was announced by MIPS in 2018 for embedded devices to lower power consumption and yield smaller code footprints was announced for the MIPS I7200 but since then there hasn't been much of nanoMIPS. However, MediaTek is now looking to contribute upstream the compiler support for this processor ISA into GCC.

7 Hours Ago - Hardware - nanoMIPS For GCC - 2 Comments

26 September

GNU Wget2 2.0 Released With HTTP2 & SSL Improvements

GNU Wget2 2.0 has been released for this successor to GNU Wget. There are many improvements to this GPLv3+ licensed program. Over the original GNU Wget, Wget2 is faster, supports more protocols especially around HTTP/2 and compression, supports multi-threading / parallel connections, and other improvements.

26 September 10:06 AM EDT - GNU - Wget2 2.0 - 12 Comments
Updated AMD P-State Driver Published For Linux

Earlier this month AMD published their "amd-pstate" Linux driver that leverages ACPI CPPC data to make more informed CPU frequency scaling decisions with an aim to boost the performance-per-Watt for Zen 3 (and eventually Zen 2) processors on Linux. The second spin of that "amd-pstate" Linux kernel driver is now available for testing.

26 September 06:45 AM EDT - AMD - AMD P-State - 5 Comments

25 September

Facebook Has Been Working On BOLT'ing The Linux Kernel For Greater Performance

For several years now Facebook engineers have been working on BOLT as a way to speed-up Linux/ELF binaries. This "Binary Optimization and Layout Tool" is able to re-arrange executables once profiled to generate even faster performance than what can be achieved by a compiler's LTO and PGO optimizations. One of the latest BOLT efforts has been on optimizing the Linux kernel image.

25 September 09:20 AM EDT - Linux Kernel - BOLTing The Linux Kernel - 15 Comments
Intel's User Interrupts With Sapphire Rapids Looking Quite Great For Faster IPC

Earlier this month Intel engineers posted their initial Linux kernel enablement around x86 User Interrupts with this feature premiering with Xeon "Sapphire Rapids" CPUs. As implied by the name, the User Interrupt functionality allows for interrupts to bypass the kernel for more efficient, low-latency, low-utilization interrupts being received by other user-space tasks. Intel talked more about User Interrupts this week at LPC2021.

25 September 08:32 AM EDT - Intel - x86 User Interrupts - 7 Comments

24 September

SiFive HiFive Unmatched Hands-On, Initial RISC-V Performance Benchmarks

A few weeks ago I finally received the HiFive Unmatched from SiFive as their flagship RISC-V development board. As a reminder this is their mini-ITX development board that is powered by their U740 SoC and features 16GB of DDR4 system memory, one PCI Express x16 slot that can work with AMD Radeon graphics cards on Linux, and other features. It's been a delight playing with this developer platform and enclosed are some early benchmarks as well showing off the U740 performance as well as how the Linux software support/performance has been evolving.

24 September 09:22 AM EDT - Computers - 64 Comments

23 September

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