Dynamic Right-Sizing: An Automated, Lightweight, and Scalable Technique for Enhancing Grid Performance

  • Authors:
  • Wu-chun Feng;Mike Fisk;Mark K. Gardner;Eric Weigle

  • Affiliations:
  • -;-;-;-

  • Venue:
  • PIHSN '02 Proceedings of the 7th IFIP/IEEE International Workshop on Protocols for High Speed Networks
  • Year:
  • 2002

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Abstract

With the advent of computational grids, networking performance over the wide-area network (WAN) has become a critical component in the grid infrastructure. Unfortunately, many high-performance grid applications only use a small fraction of their available bandwidth because operating systems and their associated protocol stacks are still tuned for yesterday's WAN speeds. As a result, network gurus undertake the tedious process of manually tuning system buffers to allow TCP flow control to scale to today's WAN grid environments. And although recent research has shown how to set the size of these system buffers automatically at connection set-up, the buffer sizes are only appropriate at the beginning of the connection's lifetime. To address these problems, we describe an automated and lightweight technique called dynamic rightsizing that can improve throughput by as much as an order of magnitude while still abiding by TCP semantics.