The cμ rule revisited

C. Buyukkoc, P. Varaiya, J. Walrand
1985 Advances in Applied Probability  
The cμ rule is optimal for arbitrary arrival processes provided that the service times are geometric and the service discipline is preemptive.
doi:10.2307/1427064 fatcat:sozz3ssb5bea7daccdemc37zl4