millisec - millisecond timer .EX include "sys.m"; sys := load Sys Sys->PATH; millisec: fn(): int; Millisec returns the value of an internal system clock, in milliseconds. The actual resolution of the clock is a property of the underlying system and may be coarser than a millisecond. The epoch is arbitrary, so millisec is useful for measuring durations but not absolute time. If the system operates continuously, the millisecond counter overflows every few months; a reboot resets the epoch. sys-intro (2), sys-sleep (2)