LBL to SLAC
The following graphs shows the thruput measured from LBL, Berkeley California
(costard.lbl.gov a Debian Linux machine) to SLAC (pharlap.slac.stanford.edu) on 10/23/00.
At this time the route was going via Chicago, the actual route can be
seen by looking at the pchar output.
The window sizes choosable were limited to less than 128kBytes by costard.
The maximum thruput is about 56Mbits/sec.
The best thruput with the minimum window size I was able to choose (16kBytes)
was about 10Mbits/s. The best thruput with 1 stream (128kByte window) was about 6Mbits/s.
With the default of 1 stream and 16kByte window the thruput was about 560kbits/sec.
The thruput seems to saturate at about 9 streams with 128kByte windows at about 54Mbits/s.
The default window size on costard was 64kBytes and with 1 streams and 64kB
window we measured 1.6Mbits/sec.
Sample Bulk Throughput Measurements
Cal Tech | CERN |
Colorado | IN2P3 |
INFN |Daresbury |
Stanford to Daresbury |
ANL |BNL |
LBL |SLAC To Stanford's Campus
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Summary of Bulk Throughput Measurements
Created August 25, 2000, last update August 29, 2001.
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