Table of Contents
Automatic TCP Buffer Tuning
Acknowledgments
High Speed File Transfers
Expected Performance
Default Tuning: Performance vs. Delay
TCP Assumptions
Socket Buffers
Under-buffered send socket buffer
Hand Tuning:
Problems with Hand Tuning
Over-buffered send socket buffer
System Memory Usage
Goals of Sender Autotuning
Congestion Window
Sender auto-tuning based on cwnd
sb_net_target vs. cwnd over time
Fair Share Algorithm
Illustration of fair share algorithm
Test Topology
Tuning Types
Basic Functionality Test
Basic Functionality
Basic Functionality
Basic Functionality
System Memory Usage
Diverse concurrent connections
Diverse concurrent connections
Diverse concurrent connections
Diverse concurrent connections
System Memory Usage
Impact
Conclusion
|
Author: Jeffrey Semke
Email: semke@psc.edu
Home Page: http://www.psc.edu/networking/auto.html
|