GREEN=global GREY=local HTML version of Foils prepared July 29,1995 Foil 31 Role of Caching in the Virtual University -- III
From Technologies and Issues for Virtual University HPDC95 Tutorial Pentagon City -- August 1 1995. by Geoffrey C. Fox * See also color GIF
- We will need caching anyway for both the Global University and indeed general hierarchical Web Server/ InfoVision scenario
- Comparison with InfoVision and the Entertainment Analogy:
- Suppose Jurassic Park VI is released on the Hollywood NII Server
- Without Caching -- perhaps 20 million people will videodial Hollywood to get their simultaneous showings at 1.5 megabits/second each
- Need Cross-section bandwidth across the US of about 15,000 gigabits/sec
- With Caching, average person will find new movie cached on local server only a few optical fiber miles away. Will reduce needed bandwidth by about a factor of 100 as must travel about 15 miles
not 1500 miles to get movie.
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