Automated Timekeeping II

Biological Timekeeping.

The daily transition from light to darkness has significantly shaped the evolution of most living species, from unicellular organisms to mammals. Adaptation to this environmental constraint occurred through the emergence of a circadian system capable of adjusting both behavioral and physiological processes to this light-dark cycle. Superimposed upon the daily light-dark cycle is a seasonal infl...

Internet Timekeeping Around the Globe

This paper describes a massive survey of Network Time Protocol @TI") servers and clients in order to discover statistics of time and frequency mm, as well as determine the health and welfare of the NTP synchronization subnet operating in the global Internet. Among the conclusions of the survey are that most NTP clocks are within 21 ms of their synchronization sources and all are within 29 ms on...

Timekeeping in VMware Virtual Machines

Because virtual machines work by time‐sharing host physical hardware, a virtual machine cannot exactly duplicate the timing behavior of a physical machine. VMware virtual machines use several techniques to minimize and conceal differences in timing behavior, but the differences can still sometimes cause timekeeping inaccuracies and other problems in software running in a virtual machine. This i...

Chapter II Automated Reasoning

II Automated Proofs of Termination 11 II