Eric J. Berglund. An Introduction to the V-System. IEEE Micro, 10(8):35--52, August 1986.  Home/Search   Document Not in Database   Summary   Related Articles   Check

....have been taken: interrupt masking as previously described, non preemptable handlers, and lock free synchronization. In the non preemptable approach, both synchronous and asynchronous event handlers run uninterruptably to completion. The V kernel and many real time systems follow this approach [17, 18]. Unfortunately, non preemptable interrupt handlers impose serious constraints on handler structure: all handlers must be short to ensure that the latency of high priority events is low, and handlers cannot containing blocking operations (e.g. device status register polling) While this approach ....

Eric J. Berglund. An Introduction to the V-System. IEEE Micro, 10(8):35--52, August 1986.

....nodes represent processors and arcs represent communication channels. These studies typically aim at minimizing the number of messages needed to read or write a simulated shared variable. In this paper, we are more interested in reallife distributed computing systems (like those advocated by V [Berglund 1986] and Amoeba [Mullender and Tanenbaum 1986] In such systems, all processes can directly communicate with each other, although communication between processes on different processors is expensive. These systems frequently support additional communication primitives, like multicast and ....

Berglund, E. J., An Introduction to the V-system, IEEE Micro, Vol. 6, No. 4, pp. 35-52, Aug. 1986.

....On the Pentium this operation can be performed in five to ten cycles, two orders of magnitude our results and propose our new scheme, and conclude in Section 8. 2 Related Work The interrupt handlers of real time systems often run with interrupts disabled [Stan88] as in the V kernel [Berg86]. In this paper we explore similar techniques, using atomicity for synchronization, although we make no assumptions about real time behavior of the system as a whole. Synchronization does not require locking; other techniques have been proposed. For example, nonblocking synchronization [Herl90, ....

Berglund, E., "An Introduction to the V-System", IEEE Micro 10, 8, 35--52 (August 1986).

....7 microseconds from 176 to 169. The cycle times on the 5000 120 and 5000 200 are 50 and 40 nanoseconds respectively. In the non preemptable approach, both synchronous and asynchronous event handlers run uninterruptably to completion. The V kernel and many real time systems follow this approach [Berglund 86, Stankovic Ramamritham 88] Unfortunately, non preemptable interrupt handlers impose serious constraints on handler structure: all handlers must be short to ensure that the latency of high priority events is low, and handlers cannot containing blocking operations (e.g. device status register ....

Berglund, E. J. An Introduction to the V-System. IEEE Micro, 10(8):35--52, August 1986.

....On the Pentium this operation can be performed in five to ten cycles, two orders of magnitude 2 our results and propose our new scheme, and conclude in Section 8. 2 Related Work The interrupt handlers of real time systems often run with interrupts disabled [Stan88] as in the V kernel [Berg86]. In this paper we explore similar techniques, using atomicity for synchronization, although we make no assumptions about real time behavior of the system as a whole. Synchronization does not require atomicity; other techniques have been proposed for synchronizing data structure access. For ....

Berglund, E., "An Introduction to the V-System", IEEE Micro 10, 8, 35--52 (August 1986).

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