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You are here: Foswiki>ATLAS Web>CornellSpeedTest (14 Sep 2011, CarstenAulbert)Edit Attach
Cornell Speed Test
Very brief test pulling /dev/zero fromgridftp1.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 | 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 |
| 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 |
| 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 |
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Topic revision: r3 - 14 Sep 2011, CarstenAulbert
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