Paper Details

@InProceedings{BeersLeibenspe90,
  title = "{T}ransputer performance issues using the trollius operating system",
  author= "Beers, James R. Jr. and Leibensperger, Ros and Braner, Moshe and Fielding, David",
  editor= "Zedan, Hussein S. M.",
  pages = "35--50",
  booktitle= "{OUG}-13: {R}eal-{T}ime {S}ystems with {T}ransputers",
  isbn= "90 5199 041 3",
  year= "1990",
  month= "sep",
  abstract= "The Trollius Opeiating System for distributed multicomputer
     offers different types of message-passing services,
     incorporating different amounts of overhead. Each of the
     operating system activities required for interprocess
     communication is designed as an individual module or layer.
     The different types of Trollius communication can be
     accessed by turning operating system services on or off, or
     by directly utilizing different layers of
     communication.Basically, there are three layers of internode
     communication. The network layer can be used from any node
     to any other node; the data link layer is for
     nearest-neighbor communication; and Ihe physical layer uses
     the hardware in the most efficient way possible, but
     requires exclusive use of the link. A separate level, the
     kernel level, is used for intranode communication. Operating
     system services that can be turned on or off include
     buffering and virtual circuits.Two different types of
     benchmarks are used to evaluate the performance of the
     different types of Trollius message-passing. The first type
     calculates message-passing lime as the sum of the limes
     required for each individual service or component of Ihe
     process. The decrease in message-passing lime obtained when
     turning off services can ihus be easily measured. The second
     benchmark measures throughput, the amount of information
     that can be sent from one node to another in a given amount
     of time, for different layers of message-passing, utilizing
     different sendees. This is the more accurate measure when
     series of messages are sent from one node to another. The
     throughput measurements demonstrate the value of the
     physical layer and of virtual circuits."
}

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