Over the past few years building the Linux kernel with Clang has matured a lot thanks to upstream improvements to both LLVM/Clang and the Linux kernel. As it's been a while since our last comparison for GCC vs. Clang built kernels on the resulting system performance, our latest year-end 2025 benchmarking is providing a fresh look at the Linux 6.19 upstream Git kernel built under the latest stable GCC 15 and LLVM Clang 21 compilers. Plus with the Clang-built kernel is also the option of the Link-Time Optimized (LTO) kernel for even greater performance.
Intel's open-source graphics driver engineers are ending out 2025 with a bang. Sent out today was the final drm-xe-next pull request of the year of new feature material ready for the next version of the Linux kernel. Today's pull adds support for SR-IOV scheduler groups as well as multi-device Shared Virtual Memory (SVM) support...
NVIDIA's Olympus are the ARM64 cores found within the upcoming Vera CPU that will be paired with Rubin. Olympus cores are claimed to be twice as fast as NVIDIA's current CPU cores found in Grace and based on Neoverse-V2. Earlier this year the open-source compilers landed initial support for Olympus while now a proper CPU scheduling model has been upstreamed into LLVM 22...
Added to the Linux kernel earlier this year was the new X86_NATIVE_CPU Kconfig option to enable compiler optimizations for the local/native CPU in use when building the Linux kernel. In effect about ensuring that the "-march=native" compiler flag is set for the kernel build for optimizing the Linux kernel build for your processor being used. Back with Linux 6.16 I ran some benchmarks of the Linux kernel build with X86_NATIVE_CPU to gauge the impact. Now with the current Linux 6.19 kernel and some different hardware, here are some additional on/off benchmarks for evaluating the impact of the Linux kernel build with X86_NATIVE_CPU...
InputPlumber 0.70 is out today as the newest feature update to this open-source input router and re-mapper daemon for Linux systems. With more gaming handhelds coming to market and other controllers as well as the upward trajectory of Linux gaming, InputPlumber is becoming more applicable for this daemon to combine various input devices into different virtual device formats...
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