Proc. IEEE Asilomar Conference on Signals, Systems, and Computers, Oct. 29-Nov. 1, 2006.

Zero-copy Queues for Native Signal Processing Using the Virtual Memory System

Gregory E. Allen, Paul E. Zucknick and Brian L. Evans

Wireless Networking and Communications Group, The University of Texas at Austin, Austin, TX 78712 USA - -

Paper - Slides


The high performance of current general-purpose processors makes it feasible to perform digital signal processing on the main CPU of a workstation. As the performance gap between CPU speed and memory speed continues to increase, it becomes obvious that DSP applications on workstations must address memory performance. We present a technique for using the virtual memory system to implement zero-copy queues. We present benchmark results for a frequency-domain FIR filter using this technique, compared to manual data circularity management. The technique presented can significantly reduce the overhead of data management when processing continuous, overlapping streams of data.

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Last Updated 12/12/12.