Datakit VCS is a networking system which integrates local and wide area networks, and attempts to provide good interactive response in the presence of bulk transfer traffic. The queueing algorithms used at the trunk interface are the chief means of providing good interactive response. This report compares the performance of fifo queueing and per-channel queueing by implementing these disciplines on a programmable trunk board and measuring the throughput and interactive delay. These measurements show that (1) fifo queueing delays messages up to ten times longer than per-channel queueing when the trunk is heavily loaded, and that (2) per-channel queueing does not adversely affect trunk throughput or delay when the trunk is not loaded.
Title
Performance Analysis of Queuing Algorithms on Datakit T1 Trunk Lines
Published
1989-12-01
Full Collection Name
Electrical Engineering & Computer Sciences Technical Reports
Other Identifiers
CSD-89-547
Type
Text
Extent
32 p
Archive
The Engineering Library
Usage Statement
Researchers may make free and open use of the UC Berkeley Library’s digitized public domain materials. However, some materials in our online collections may be protected by U.S. copyright law (Title 17, U.S.C.). Use or reproduction of materials protected by copyright beyond that allowed by fair use (Title 17, U.S.C. § 107) requires permission from the copyright owners. The use or reproduction of some materials may also be restricted by terms of University of California gift or purchase agreements, privacy and publicity rights, or trademark law. Responsibility for determining rights status and permissibility of any use or reproduction rests exclusively with the researcher. To learn more or make inquiries, please see our permissions policies (https://www.lib.berkeley.edu/about/permissions-policies).
