Introduction

Table of Contents

Introduction

Questions

Plan of Attack

FreeBSD Kernel Extensions

Trapeze Project Overview

Trapeze Features

Hardware

Motivation

Zero-Copy Sockets

Zero-Copy Send

Zero-Copy Receive

Receiver Checksum Offloading

PPT Slide

Monet/Lanai-7: Checksum Offloading

Monet/Lanai-7: Zero-Copy Sockets

Monet/Lanai-7: All Optimizations

300MHz Pentium-II/Lanai-4: All Optimizations

450MHz Pentium-II/Lanai-4: All Optimizations

Overhead Analysis:After Optimizations

Summary and Conclusion

Acknowledgements

Email: gallatin@cs.duke.edu

Home Page: http://www.cs.duke.edu/ari/trapeze/

Other information:
FREENIX track, USENIX Technical Conference Monterey, CA June 1999