ADAPTIVE BLOCK REARRANGEMENT UNDER UNIX

Authors
AKYUREK S SALEM K
Citation
S. Akyurek et K. Salem, ADAPTIVE BLOCK REARRANGEMENT UNDER UNIX, Software, practice & experience, 27(1), 1997, pp. 1-23
Citations number
17
Categorie Soggetti
Computer Sciences","Computer Science Software Graphycs Programming
Journal title
Software, practice & experience → ACNP
ISSN journal
00380644
Volume
27
Issue
1
Year of publication
1997
Pages
1 - 23
Database
ISI
SICI code
0038-0644(1997)27:1<1:ABRUU>2.0.ZU;2-Q
Abstract
An adaptive UNIX disk device driver is described. To reduce seek times , the driver copies frequently-referenced blocks from their original l ocations to reserved space near the center of the disk. Block referenc e frequencies need not be known in advance. Instead, they are estimate d by monitoring the stream of arriving requests. Measurements show tha t the adaptive driver reduces seek times and response times substantia lly.