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by Kenjiro Cho #07 11/28/2002

benchmarking

• benchmarking tools for UNIX
  
  
  • netperf, ttcp, treno, sting, etc
    
    
• TCP is often better than UDP
  
  
  • UDP overflows all buffers but TCP adapts to available bandwidth
    
    
  • set TCP buffer size larger than delay bandwidth product
    
    
  • delay becomes larger under congestion by buffers at routers