Accession Number:

ADA027890

Title:

A Study of Buffer Management Policies for Data Management Systems.

Descriptive Note:

Technical summary rept.,

Corporate Author:

WISCONSIN UNIV MADISON MATHEMATICS RESEARCH CENTER

Personal Author(s):

• Reiter,Allen

Report Date:

1976-03-01

Pagination or Media Count:

25.0

Abstract:

Using a simulation model, several buffer assignment algorithms were investigated experimentally. A simple least-recently-used LRU technique was compared with one which took into account the type of data and the number of current users DS. Also investigated was the use of anticipatory fetching. Performance as a function of the number of available buffers was measured for each strategy. For the application and job mix in question it turns out that anticipatory fetching does not pay, and that DS in general behaves somewhat better than LRU.

Descriptors:

• *MULTIPROCESSORS
• MATHEMATICAL MODELS
• DATA MANAGEMENT
• ALLOCATIONS

Subject Categories:

• Computer Hardware
• Computer Systems Management and Standards

Distribution Statement:

APPROVED FOR PUBLIC RELEASE