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Drgn v0.1 Released For Very Versatile Programmable Debugger

Drgn is the programmable debugger developed by Meta engineer Omar Sandoval that has proven quite versatile and popular with Linux kernel developers and others. After nearly two dozen releases already, Drgn v0.1 was released this week as another big step forward for this open-source debugger...
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Linux 7.0 Shows Significant PostgreSQL Performance Gains On AMD EPYC

When beginning some early Linux 7.0 kernel benchmarking this week for looking at its performance in its early development state, I started off testing on Core Ultra X7 "Panther Lake" in being hopeful for better performance with the maturing Arc B390 Xe3 graphics and the like. But I ended up finding Intel Panther Lake seeing some performance regressions on Linux 7.0. So next up I turned to an AMD EPYC Turin server since if regressions existed there at least it's much faster to carry out bisecting of the kernel performance regressions. But with that initial testing wrapped up, I didn't find any regressions like with Panther Lake and standing out were some rather enticing PostgreSQL database server performance benefits when running atop Linux 7.0.
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Mesa KosmicKrisp Driver Is Coming To iOS, More Performance & Vulkan 1.4 Expected

Last year LunarG announced KosmicKrisp as a new Vulkan implementation atop Apple's Metal API. Initially targeting macOS, KosmicKrisp since was merged to Mesa and has evolved quite nicely as a modern implementation of Vulkan-on-Metal for Apple Silicon. It continues moving ahead with an eye for iOS, more performance optimizations, and completing Vulkan 1.4 support...
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AI Helped Uncover A "50-80x Improvement" For Linux's IO_uring

Linux block maintainer and IO_uring lead developer Jens Axboe recently was debugging some slowdowns in the AHCI/SCSI code with IO_uring usage. When turning to Claude AI to help in sorting through the issue, patches were devised that can deliver up to a "literally yield a 50-80x improvement on the io_uring side for idle systems." The code is on its way to QEMU...
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Gigabyte MZ33-AR1: A Uniquely Positioned AMD EPYC 9005 Motherboard For Open-Source Firmware

The Gigabyte MZ33-AR1 is a single socket AMD EPYC 9004/9005 E-ATX server motherboard for those wanting up to 24 RDIMMs, dual 10 Gigabit LAN, and plenty of storage potential via six MCIO connectors and four PCIe Gen5 x16 slots. Beyond offering nice capabilities for this modern AMD EPYC server motherboard at a ~$700 USD price point, it's uniquely positioned for an open-source firmware future thanks to ongoing work around AMD openSIL and hopefully followed by OpenBMC.
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Mediatek MT7902 WiFi Finally Seeing Open-Source Linux Driver Activity

When searching for "MT7902" and "Linux" there is no shortage of users asking about Linux driver support for the Mediatek MT7902 WiFi chipset or users complaining about their MT7902 WiFi not working under Linux with that chipset found in numerous laptops in recent years. Fortunately, there is finally Linux driver support for the MT7902 surfacing for review on the Linux kernel mailing list...
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Simdjson Shows More Speed-Ups Possible For SIMD In JSON Parsing: Another 30% Boost

Simdjson is the open-source project for high performance JSON parsing by leveraging SIMD instructions for "parsing gigabytes of JSON per second." Notably it showed years ago the huge performance advantage to using AVX-512 in JSON parsing for surprisingly big benefits. Simdjson has continued advancing since then with various optimizations over the years and today is out with simdjson 4.3 that brings yet more SIMD optimizations...
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PipeWire 1.6 Released With Many New Features

PipeWire 1.6 is out today as the newest feature release for this software widely used by the Linux desktop for managing of audio and video streams while nicely integrating with sandboxed Flatpak apps and more...
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Linux Still Working To Clean Up The Realtek RTL8723BS 802.11b/g/n WiFi Driver In 2026

Introduced to the Linux 4.12 kernel's staging area back in 2017 was the Realtek RTL8723BS WiFi driver. The Realtek RTL8723BS is an 802.11 b/g/ SDIO WLAN adapter with Bluetooth 4.0 connectivity too. In the nearly decade since this driver was added to the staging area, it's continued to be cleaned up and with the Linux 7.0 merge window there is yet again a lot of work on cleaning up this WiFi driver for the old Realtek hardware...
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More ISA Differences Come To Light With The New AMD GFX1170 "RDNA 4m"

Earlier this month we spotted the addition of a new GFX1170 GPU target in the AMDGPU LLVM back-end. Making this GFX1170 target interesting is that its marked as an APU/SoC part with "RDNA 4m" while being part of the GFX11 series. The GFX11 series is for RDNA3, GFX115x is for RDNA 3.5, and GFX12 is RDNA4. More ISA changes have now been committed to the AMDGPU LLVM back-end that make a few more instruction differences better aligned with RDNA4...
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