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Would it be right to compute it as the network time (2ms) + disk seek and block read (10ms) ~= 12ms?
Would that be the correct order of magnitude?

  • interested in the response time, not absolute rate.
  • Assume mid-range hardware with no caching on (access pattern is too random for caching to help).
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You may want to use a larger file size, 100KB will hardly provide anything worth measuring given 1Gb LAN being a standard these days. –  SpacemanSpiff Feb 28 '13 at 23:35
if you have many files, avoid nfs protocol. –  Mohsen Pahlevanzadeh Mar 1 '13 at 0:45
@SpacemanSpiff I'm interested in the minimal response time for the operation, be it 1 bit of data, or 1MB. –  Gili Nachum Mar 1 '13 at 7:16
@MohsenPahlevanzadeh can you add why? If I have 1 million files stored, made accessible via NFS, and I'm accessing a 10 random ones every second, wouldn't that work fine? –  Gili Nachum Mar 1 '13 at 7:17
I think assuming that each side is not overloaded, and assuming the network is not congested, that is a reasonable assumption. It must be tested. –  SpacemanSpiff Mar 1 '13 at 13:49

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