Scalability: Volunteer Servers

• Problem

  • applets can only communicate with server
  • no scalability
  • high congestion, high latency, wasted time

Slow/Congested Link

Work

Engine

Worker

WorkEngine

Worker

Main Server

. . .

• Mandelbrot Experiment
  • direct to main server via fast link: 5 s
  • direct to main server via slow link: 198 s
  • with watcher: 233 s

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