Title
Measuring OS Support for Real-Time CORBA ORBs
Abstract
This paper compares and evaluates the suitability of real-time operating systems, VxWorks and LynxOS, and general-purpose operating systems with real-time extensions, Windows NT, Solaris, and Linux, for real-time ORB middleware. While holding the hardware and ORB constant, we vary these operating systems and measure platform-specific variations in context switching overhead and priority inversions.Our findings illustrate that general-purpose operating systems like Windows NT, Solaris, and Linux are not yet suited to meet the demands of applications with stringent QoS requirements. Although Linux provides good raw performance, its high jitter makes it unsuitable for real-time applications. Both LynxOS and VxWorks do enable predictable and efficient ORB performance, however, thereby making them suitable as OS platforms for real-time CORBA applications. In general, our results underscore the need for a measure-driven methodology to pinpoint sources of overhead and priority inversion in real-time ORB endsystems.
Year
DOI
Venue
1999
10.1109/WORDS.1999.806555
WORDS (Jan.)
Keywords
Field
DocType
general-purpose operating system,real-time orb endsystems,priority inversion,real-time extension,real-time corba application,measuring os support,real-time operating system,windows nt,real-time orb middleware,operating system qos support,efficient orb performance,real-time object-oriented systems,real-time application,real-time corba object request bro- ker,real-time corba orbs,real time applications,real time systems,operating system,real time operating system,linux,middleware,jitter,real time,real time operating systems
Middleware,Computer science,Quality of service,Real-time computing,Context switch,Distributed computing,Windows NT,Common Object Request Broker Architecture,Orb (optics),Real-time operating system,Priority inversion,Operating system,Embedded system
Conference
ISBN
Citations 
PageRank 
0-7695-0101-X
9
1.15
References 
Authors
13
4
Name
Order
Citations
PageRank
David L. Levine160965.16
Sergio Flores-Gaitan2779.06
Christopher D. Gill378955.35
Douglas C. Schmidt45622576.58