Measurement, Analysis, and Improvement of UDP/IP Throughput for the DECstation 5000

Networking software is a growing bottleneck in modern workstations, particularly for high throughput applications such as networked digital video. We measure various components of the UDP/IP protocol stack in a DECstation 5000/200 running Ultrix 4.2a, and find that checksumming and copying dominate the processing time for high throughput applications. This paper describes network software measurements and performance improvements which derive from a faster checksum implementation.

• Type: Conference
• Year: 1993
• Where: USENIX
• Authors: Jonathan Kay, Joseph Pasquale
• Keywords: Faster Checksum Implementation, Networked Digital Video, Operating System, UDP/IP Protocol Stack, USENIX 1993