The performance of a real-time I/O subsystem for QoS-enabled ORB middleware

Author

Kuhns, Fred ; Schmidt, Douglas C. ; Levine, David L.

Author_Institution

Dept. of Comput. Sci., Washington Univ., St. Louis, MO, USA

fYear

1999

fDate

1999

Firstpage

120

Lastpage

129

Abstract

There is increasing demand to extend object request broker (ORB) middleware to support applications with stringent quality of service (QoS) requirements. However conventional ORBs do not define standard features for specifying or enforcing end-to-end QoS for applications with deterministic real-time requirements. This paper describes the design and performance of a real-time I/O (RIO) subsystem optimized for QoS-enabled ORB end-systems that support high-performance and real-time applications running on off-the-shelf hardware and software. The paper illustrates how integrating a real-time ORB with a RIO subsystem can reduce latency bounds on end-to-end communication between high-priority clients without unduly penalizing low-priority and best-effort clients

Keywords

client-server systems; distributed object management; input-output programs; quality of service; real-time systems; software performance evaluation; QoS-enabled ORB middleware; deterministic real-time requirements; end-to-end communication; high-performance applications; high-priority clients; latency bounds; object request broker; object-oriented middleware; off-the-shelf hardware; off-the-shelf software; performance; real-time I/O subsystem; real-time ORB; service quality requirements; Computer science; Electrical capacitance tomography; High-speed networks; Kernel; Middleware; Operating systems; Protocols; Quality of service; Skeleton; Yarn;

fLanguage

English

Publisher

ieee

Conference_Titel

Distributed Objects and Applications, 1999. Proceedings of the International Symposium on

Conference_Location

Edinburgh

Print_ISBN

0-7695-0182-6

Type

conf

DOI

10.1109/DOA.1999.793998

Filename

793998