On Mon, Aug 29, 2011 at 4:15 PM, Brett Glass <br...@lariat.net> wrote
> Alas, during a recent kernel build, I used the -j2 command line option in > "make" and watched as the scheduler repeatedly assigned two instances of cc > (the most CPU-intensive program) to the same core. > > During that process, I also watched CPU utilization in top(1). The peak was > 46% idle, which means that HTT appeared to be making at most a 4% > difference. (If the peak were 50% idle, HTT would be doing nothing at all, > because top(1) can't tell that there aren't really 4 CPUs.) > You can achieve definitive answers by timing several build runs of each setting and using ministat. -- Adam Vande More _______________________________________________ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"
