From the press release at LinuxPR: "Finite State Machine Labs: the RTLinux[tm]
Company, has announced that RTLinux and the RTLinux Development Kit are now
available for several PowerPC 860 evaluation boards. Stress tests of the boards
show worst case measured periodic jitter times of less than 14 microseconds.
Context switch times have been measured at four microseconds worst case."
June 20, 2001