Open-source News

Adjusting One Line Of Linux Code Yields 5x Wakeup Latency Reduction For Modern Xeon CPUs

Phoronix - Wed, 01/21/2026 - 19:27
A new patch posted to the Linux kernel mailing list aims to address the high wake-up latency experienced on modern Intel Xeon server platforms. With Sapphire Rapids and newer, "excessive" wakeup latencies with the Linux menu governor and NOHZ_FULL configuration can negatively impair Xeon CPUs for latency-sensitive workloads but a 16 line patch aims to better improve the situation. That is, changing one line of actual code and the rest being code comments...

New Patches Aim To Make x86 Linux EFI Stub & Relocatable Kernel Support Unconditional

Phoronix - Wed, 01/21/2026 - 18:55
Prominent Intel Linux engineer H. Peter Anvin has posted a new patch series working to clean-up the Linux x86/x86_64 kernel boot code. Besides cleaning up the code, the kernel configuration would drop options around EFI stub mode and relocatable kernels in making those features now always enabled...

PHPStan Now 25~40% Faster For Static Analysis

Phoronix - Wed, 01/21/2026 - 18:40
For those using the powerful PHPStan tool for static analysis on PHP code, this week's PHPStan 2.1.34 is promoting optimized performance with projects seeing around 25% to 40% faster analysis times...

An Exciting Day With More Performance Optimizations Merged For RADV In Mesa 26.0

Phoronix - Wed, 01/21/2026 - 09:09
Mesa 26.0 was due to be branched last week and in turn start its feature freeze but ended up being pushed back to tomorrow (21 January) to allow some lingering features to land. It's been beneficial for the Radeon Vulkan driver "RADV" with several interesting merge requests having landed in time for Mesa 26.0...

Unlocking the power of 5G: How Red Hat OpenShift and Oracle’s 5G Core Control Plane streamline global deployments

Red Hat News - Wed, 01/21/2026 - 08:00
As communications service providers (CSPs) embrace the shift to 5G, they’re not just adopting faster speeds, they are entering a new world of cloud-native, microservices-driven networks. But for all its promise, 5G brings challenges, especially when it comes to interoperability and lifecycle management of the 5G control plane.Complexities of a cloud-native and multivendor networkUnlike traditional monolithic networks of the past, 5G networks rely on microservices-based, cloud-native network functions (CNFs) that must work reliably across different vendors’ platforms, orchestration layers,

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