Lock-granularity analysis tools in SVR4/MP

Author

Campbell, Mark D. ; Holt, Russ L.

Author_Institution

NCR Corp., West Columbia, SC, USA

Volume

10

Issue

2

fYear

1993

fDate

3/1/1993 12:00:00 AM

Firstpage

66

Lastpage

70

Abstract

The design of the SVR4/MP multiprocessing system with fine-grained locking is discussed. SVR4/MP scales efficiently to eight processors under a database transaction processing workload and typical multiuser benchmarks. In developing SVR4/MP, initial lock placement was deemphasized and rapid, iterative tuning of lock placement was the focus. Sophisticated tools were used to perform iterative overall performance and scalability tuning of the operating system. The tools developed to determine lock granularity quantitatively are described and an example of their use to optimize overall system efficiency is presented.<>

Keywords

database management systems; multiprocessing systems; network operating systems; transaction processing; SVR4/MP multiprocessing system; database transaction processing; fine-grained locking; iterative overall performance; lock placement; lock-granularity analysis tools; multiuser benchmarks; operating system; overall system efficiency; scalability tuning; Councils; File systems; Gain measurement; Kernel; Operating systems; Runtime; Scalability; Size measurement; Statistical analysis; Transaction databases;

fLanguage

English

Journal_Title

Software, IEEE

Publisher

ieee

ISSN

0740-7459

Type

jour

DOI

10.1109/52.199738

Filename

199738