On 02/01/2008, Josh Carroll <[EMAIL PROTECTED]> wrote: > > Does anyone have a theory why syscalls are so expensive in FreeBSD? Here > > are the results of unixbench 4.1 on two machines. First is the machine > > running FreeBSD HEAD (debugging disabled) on a dual-core Athlon 64 (i386 > > mode), 2 GHz: > > I ran the syscall benchmark from UnixBench on the same hardware (Intel > Q6600 @ 3.2 GHz) for both FreeBSD 7.0-RC1 (amd64) and Knoppix 5.1 > (Linux 2.6.9 PREEMPT kernel, i386). > > Per the comments in this thread, i386 syscalls should be less > expensive than amd64 syscalls, so the results are interesting: > > FreeBSD 7.0-RC1 (amd64): System Call Overhead > 15000.0 1103233.7 735.5 > Knoppix Linux 2.6.9 (i686): System Call Overhead > 15000.0 1108869.7 739.2
> Doesn't look like the syscalls are slower at all on FreeBSD. Thanks, I'll have to look further to see where the slowdowns are. _______________________________________________ freebsd-performance@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-performance To unsubscribe, send any mail to "[EMAIL PROTECTED]"
