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 4 8 16 32 64 128 168 192 256 384Sorted ascending
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
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

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