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Re: Network file transfer rate comparisons



    Date: Thu, 26 Jan 89 10:17 EDT
    From: "TSD::AIP1::\"Len%HEART-OF-GOLD\"%atc.bendix.com"%RELAY.CS.NET@Warbucks.AI.SRI.COM

    Date: Thu, 26 Jan 89 10:09 EST
    From: Len Moskowitz <Len@HEART-OF-GOLD>
    Subject: Network file transfer rate comparisons
    To: "3077::IN%\"slug@warbucks.ai.sri.COM\""@TSD1
    In-Reply-To: Your message of 25 Jan 89 23:44 EST
    Message-ID: <19890126150927.2.LEN@HEART-OF-GOLD>
 
    It seems to me that your performance test will reflect disk access times just as much as network
    performance.  I tried it with a 3675 accessing its own two large drives (a 515 and a 470) using
    NFILE and found the following performance:
 
Note that 3670s have a much faster SMD access time than the 50. Part of the
reason is software, part of the reason is that the channel is 16 bits wide
on the L machines, and only 8 bits wide on the N machines.

So, 367x's make faster file servers than 3650s (if you can afford the
maintainance).

----
Brad Miller		U. Rochester Comp Sci Dept.
miller@cs.rochester.edu {...allegra!rochester!miller}