On Fri, Jul 08, 2022 at 11:55:13AM +0200, Manuel Bouyer wrote: > I think it's more than this; it's to use the right instruction on the > right CPU. But I don't remember the details
This tests a CPU features at boot time, and replaces a generic implementation by a CPU-optimized one. Indeed it brings maximum performance because there is no CPU feature test at runtime, but it comes with a price. Profilig and debugging are broken, for instance. -- Emmanuel Dreyfus m...@netbsd.org
