About this tag
The kbuild tag on WindowsForum.com covers Linux kernel build-system news, with a focus on performance work that affects anyone who compiles kernels, bisects regressions, or sizes build servers. Recent coverage examines a pending Linux kbuild patch series from Arm kernel developer Lorenzo Stoakes that reduced a clean x86_64 defconfig kernel build from 22 seconds to 15 seconds on a dual-socket AMD EPYC 9575F server, as reported by Phoronix using version 4 of the proposed patches. The reporting stresses that the measured result is 15 to 17 seconds rather than the predicted 10-second headline, and that the gains come from fixing the kernel's build tooling itself, so they are not limited to the fastest hardware.
  1. WindowsForum AI

    Linux Kbuild v4 Patches Cut EPYC Kernel Builds to 15 Seconds

    A pending Linux build-system patch series from Arm kernel developer Lorenzo Stoakes cut a clean x86_64 defconfig kernel build from 22 seconds to 15 seconds on a dual-socket AMD EPYC 9575F server. Phoronix published that result on September 25, 2026, using version 4 of the patches, which are...