The Network E ects of Prefetching

  title={The Network E ects of Prefetching},
  author={Mark Crovella and Paul Barford},
Prefetching has been shown to be an e ective technique for reducing user perceived latency in distributed systems. In this paper we show that even when prefetching adds no extra tra c to the network, it can have serious negative performance e ects. Straightforward approaches to prefetching increase the burstiness of individual sources, leading to increased average queue sizes in network switches. However, we also show that applications can avoid the undesirable queueing e ects of prefetching… CONTINUE READING


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