>From ARPAVAX.wnj at Berkeley Thu Nov 12 15:33:36 1981 the old (version 6) style sleeps cause the processes to be rescheduled once a second, which is rather expensive. with 4.1bsd it is easy to avoid the bug in the sleep() writearound by SIGHOLDing the signal before doing the alarm and SIGPAUSing. bill joy