Linux enthusiasts see 10-second kernel compilation times on the horizon

What happened

Linux expert and Phoronix head honcho Michael Larabel said that “the coffee window is closing” in recent commentary that weighs computer processor advances and human / AI optimizations of the Kbuild code. What once used to be a computer processing task that provided a decent excuse for a coffee break now only allows enough time for a measured sip.

The source site’s determined Linux focus has meant that OS kernel compilation times have become a signature benchmark over the last two decades. It isn’t just advances in hardware and core counts pushing the envelope; compiling a defconfig x86-64 Linux kernel build has had many bottlenecks removed thanks to the work of Linux MM developer Lorenzo Stoakes and the assistance of AI/LLMs recently.

Even modest processors have seen their compile times cut dramatically thanks to this work. Before the latest patches, the same system took over 22 seconds for the same compilation task.