Lottery Scheduling: Flexible Proportional-Share Resource Management

Lottery Scheduling: Flexible Proportional-Share Resource Management (1994)

by Carl A. Waldspurger , William E. Weihl

Citations:

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Datum	Value	Source
TITLE	Lottery Scheduling: Flexible Proportional-Share Resource Management	SVM HeaderParse 0.2
AUTHOR NAME	Carl A. Waldspurger	user correction
AUTHOR NAME	William E. Weihl	user correction
ABSTRACT	This paper presents lottery scheduling, a novel randomized resource allocation mechanism. Lottery scheduling provides efficient, responsive control over the relative execution rates of computations. Such control is beyond the capabilities of conventional schedulers, and is desirable in systems that service requests of varying importance, such as databases, media-based applications, and networks. Lottery scheduling also supports modular resource management by enabling concurrent modules to insulate their resource allocation policies from one another. A currency abstraction is introduced to flexibly name, share, and protect resource rights. We also show that lottery scheduling can be generalized to manage many diverse resources, such as I/O bandwidth, memory, and access to locks. We have implemented a prototype lottery scheduler for the Mach 3.0 microkernel, and found that it provides flexible and responsive control over the relative execution rates of a wide range of applications. The overhead imposed by our unoptimized prototype is comparable to that of the standard Mach timesharing policy.	user correction
YEAR	1994	user correction
CITATIONS	24 found	ParsCit 1.0