Performance of Firefly RPC

In this paper, we report on the performance of the remote procedure call implementation for the Firefly multiprocessor and analyze the implementation to account precisely for all measured latency. From the analysis and measurements, we estimate how much faster RPC could be if certain improvements were made. The elapsed time for an inter-machine call to a remote procedure that accepts no arguments and produces no results is 2.66 milliseconds. The elapsed time for an RPC that has a single 1440-byte result (the maximum result that will fit in a single packet) is 6.35 milliseconds. Maximum inter-machine throughput of application program data using RPC is 4.65 megabits/second, achieved with 4 threads making parallel RPCs that return the maximum sized result that fits in a single RPC result packet. CPU utilization at

• Type: Conference
• Year: 1989
• Where: SOSP
• Authors: Michael D. Schroeder, Michael Burrows
• Keywords: Elapsed Time, Faster Rpc, Operating System, Remote Procedure, SOSP 1989