Hi, We have a IBM x3550 running 7-stable. The timer is 4x~5x slower than it should be, for example: $ time sleep 1 real 0m4.979s user 0m0.000s sys 0m0.000s $ time sleep 2 real 0m9.949s user 0m0.000s sys 0m0.000s The kernel is csup'd and built today: (sys/dev/aic7xxx/aic79xx_osm.c is replaced by version 1.32 from 8-current to avoid some ahd problems) $ uname -a FreeBSD cml2 7.0-STABLE FreeBSD 7.0-STABLE #0: Fri Mar 7 03:02:06 CST 2008 root@cml2:/tmp2/usr/src/sys/CML2 amd64 dmesg: http://w.csie.org/~tzhuan/tmp/dmesg.txt sysctl: http://w.csie.org/~tzhuan/tmp/sysctl.txt kernel config: http://w.csie.org/~tzhuan/tmp/kern.config Any comments? Thanks a lot. Tz-Huan