On Sun, Jun 26, 2011 at 05:57:37PM +0300, Jukka Ruohonen wrote: > On Sun, Jun 26, 2011 at 04:39:55PM +0200, Manuel Bouyer wrote: > > Also, you seem to assume that all x86 CPUs on today's market are muticore; > > this is not true. > > No, I don't assume that. My reasoning is more like: this is one of those > seldom tested code paths; why can't there be a single source for UP/MP x86? > What disadvantages -- if any -- there are for UP running MULTIPROCESSOR? > Is it worth to compile non-MULTIPROCESSOR kernel for UP systems, and why? > Are there any reliability concerns involved in doing that?
No reliability, but eventually bloat (and so speed). Also, MULTIPROCESSOR on Xen is the seldom tested code path, that's why I want to keep the ability to run !MULTIPROCESSOR kernels for some time. -- Manuel Bouyer <bou...@antioche.eu.org> NetBSD: 26 ans d'experience feront toujours la difference --