Where's the Latency? Performance analysis of GPSes and GPSD Eric Steven Raymond
Abstract
Many GPS manufacturers tout binary protocols more dense than NMEA and baud rates higher than the NMEA-standard 4800 bps as ways to increase GPS performance. While working on gpsd, I became interested in evaluating these claims, which have some implications for the design of gpsd. This paper discusses the theory and the results of profiling the code, and reaches some conclusions about system tuning and latency control.
No comments yet, be the first one to post comment.