Cornell Speed Test

Very brief test pulling /dev/zero from gridftp1.cac.cornell.edu to atlas2:/dev/null (units are bytes for tcp-blocksize and MByte/s for speeds):

tcp-bs vs. pipe 1 2 4Sorted ascending 8 16 32 64 128 168 192 256 384
65536 0.47 1.10 2.15 4.17 8.66 17.54 35.45 48.64 71.67 75.04 87.99 96.93
1048576 0.89 1.15 2.83 5.37 11.75 24.33 44.55 59.93 68.83 76.82 74.36 83.09
4194304 0.93 1.14 2.83 5.55 11.23 24.21 50.47 66.64 72.93 62.61 79.84 66.94
262144 0.62 1.64 2.86 5.61 11.57 24.17 40.81 64.95 70.40 67.07 77.05 79.77

-- CarstenAulbert - 12 Jan 2010
Topic revision: r3 - 14 Sep 2011, CarstenAulbert
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