A ‘null’ RMI that takes no parameters, calls an empty procedure and returns no values delays the caller for 2.0 milliseconds. Explain what contributes to this time.
In the same RMI system, each 1K of user data adds an extra 1.5 milliseconds. A client wishes to fetch 32K of data from a file server. Should it use one 32K RMI or 32 1K RMIs?
one 32K RMI: total delay is 2 + 32*1.5 = 50 ms.
32 1K RMIs: total delay is 32(2+1.5) = 112 ms -- one RMI is much cheaper.
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