kernels from simonb-timecounters branch as of 20060424. files where derived from a build.sh release run. simonb-timecounters where synched with -current around 20060422. Things to try: boot kernel: look for timecounter: ... messages in dmesg find timecounter information via sysctl kern.timecounter vmstat -e try ntpd with ns resolution / PPS check whether this can sustain time keeping on busy MP nameservers The current release candidate from the NTP project is included in a tar file. It offers PPS support, faster synchronisation and many more improved algorithms (NTP V4). Frank