Scott Long wrote on Fri, Dec 16, 2005 at 12:42:51AM -0700: > > 2. SMP kernels for install. Right now we only install a UP kernel, for > performance reasons. We should be able to package both a UP and SMP > kernel into the release bits, and have sysinstall install both. It > should also select the correct one for the target system and make that > the default on boot.
If people are concerned about performance, I benchmarked a 6-beta kernel SMP versus UP on a socket 939 Opteron. The performance characteristic for the parallel tests with CPU-eaters and plain http streams in the background is different. But there certainly is no slowdown that would make us look bad when people use a SMP kernel on a one-processor machine. CPU time results: http://www.cons.org/cracauer/crabench/smpkernel.user.html Wall clock time results: http://www.cons.org/cracauer/crabench/smpkernel.wall.html General benchmark homepage (lots of AMD64 and memory benchmarking there): http://cracauer-forum.cons.org/forum/crabench.html Martin -- %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% Martin Cracauer <cracauer@cons.org> http://www.cons.org/cracauer/ FreeBSD - where you want to go, today. http://www.freebsd.org/ _______________________________________________ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "[EMAIL PROTECTED]"
