Experiment on Oct 9

To get the relation between throughput and socket buffer size

The network infrastructure is the default one

Router: Dublin, running Kernel 2.4.10, Nic driver compiled as module

Graphical presentations  of  throughput  versus  buffer  size  for buffers ranging from tens of bytes to several ``pages'' can illuminate  bottle­necks.
 

The graph will be represent soon

Experiment 2 data, relation between throughput and socket buffer size
Buffer size(Byte) LOG(size) 1st 2nd 3rd 4th 5th AVG
64 6 Trans Speed (KB/sec) 6886.72 6853.67 6868.73 6868.16 6872.12 6869.88
Recv Speed (KB/sec) 6879.59 6846.60 6861.50 6866.58 6870.62 6864.978
128

 

 7 Trans Speed (KB/sec) 6846.95 6880.95 6866.77 6869.09 6873.08 6867.368
Recv Speed (KB/sec) 6839.80 6873.73 6859.59 6857.63 6865.07 6859.164
256 8 Trans Speed (KB/sec) 6859.44 6857.42 6811.55 6853.77 6870.73 6850.582
Recv Speed (KB/sec) 6848.46 6850.70 6810.05 6842.78 6863.55
6843.108
512 9 Trans Speed (KB/sec) 6858.72 6885.08 6873.58 6803.76 6857.57 6855.742
Recv Speed (KB/sec) 6852.10 6877.93 6862.10 6801.75 6850.37 6848.85
1024 10 Trans Speed (KB/sec) 6829.73 6833.31 6869.76 6887.93 6857.37
6855.62
Recv Speed (KB/sec) 6822.72 6826.29 6868.26 6880.76 6850.20
6849.646
2048 11 Trans Speed (KB/sec) 9615.86 9571.82 9610.07 9594.63 10693.69 9817.214
Recv Speed (KB/sec) 9595.45 9557.16 9606.57 9591.70 10677.16 9805.608
3072 11.5849625 Trans Speed (KB/sec) 10232.89 10191.15 10215.61 10224.26  10195.08 10208.6825
Recv Speed (KB/sec) 10230.73 10188.86 10213.47 10221.82 10192.97
10209.57
4096 12 Trans Speed (KB/sec) 10684.58 10722.75 10728.05 10710.20 10716.85 10712.486
Recv Speed (KB/sec) 10681.97 10720.09 10725.55 10707.84 10713.71 10709.832
5120 12.32192809 Trans Speed (KB/sec) 10879.27 10840.24 10778.86 10875.30 10867.42 10848.218
Recv Speed (KB/sec) 10860.00 10822.25 10750.56 10857.13 10848.74
10827.736
6144 12.5849625 Trans Speed (KB/sec) 10954.39 10958.87 10928.85 10972.39 10963.08 10955.516
Recv Speed (KB/sec) 10925.19 10940.10 10910.34 10953.48 10944.54 10934.73
7168 12.80735492 Trans Speed (KB/sec) 11132.89 11121.79 11079.85 11080.59 11116.90 11106.404
Recv Speed (KB/sec) 11102.49 11100.06 11060.21 11061.56 11097.98 11084.46
8192 13 Trans Speed (KB/sec) 11110.92 11098.73 11106.57 11110.81 11054.47 11096.3
Recv Speed (KB/sec) 11106.62 11068.54 11087.31 11089.12 11032.42
11076.802
9216 13.169925 Trans Speed (KB/sec) 11272.20 11259.02 11199.26 11276.14 11233.47
11248.018
Recv Speed (KB/sec) 11266.58 11239.01 11179.05 11271.40 11211.79 11233.566
10240 13.32192809 Trans Speed (KB/sec) 11441.75 11435.81 11442.13 11428.71 11419.13 11433.506
Recv Speed (KB/sec) 11425.33 11415.37 11422.30 11405.79 11398.22 11413.402
11264 13.45943162 Trans Speed (KB/sec) 11444.43 11434.16 11446.44 11435.43 11426.83 11437.458
Recv Speed (KB/sec) 11423.65 11428.93 11413.08 11414.48 11421.69 11420.366
12288 13.5849625 Trans Speed (KB/sec) 11445.50 11444.15 11435.87 11437.52 11445.03 11441.614
Recv Speed (KB/sec) 11425.30 11439.08 11414.94 11406.37 11412.16 11419.57
14336 13.80735492 Trans Speed (KB/sec) 11445.56 11438.98 11403.32 11407.11 11437.34 11426.462
Recv Speed (KB/sec) 11413.72 11415.29 11369.83 11374.60 11404.64 11395.616
51200 15.64385619 Trans Speed (KB/sec) 11468.63 11468.50 11467.18 11468.64 11445.46 11463.682
Recv Speed (KB/sec) 11437.24 11440.25 11434.97 11440.4 11414.84 11433.54
1048576 20 Trans Speed (KB/sec) 11474.31 11475.33 11474.83 11463.05 11477.63 11473.03
Recv Speed (KB/sec) 11437.29 11438.23 11436.49 11424.63 11440.40 11435.408
2096132 20.99929814 Trans Speed (KB/sec) 11478.23 11475.52 11478.29 11461.19 11460.32 11470.71
Recv Speed (KB/sec) 11429.15 11436.68 11429.00 11424.08 11423.24 11428.43
4194304 22 Trans Speed (KB/sec) 11478.44 11475.62 11476.38 11475.82 11475.63 11476.378
Recv Speed (KB/sec) 11440.86 11438.31 11438.91 11438.37 11438.13 11438.916

 

 

 

 

For the detailed experiment data, please see here