Comparative Measurements - FreeBSD

Single Stream UDP Traffic Measurements for packet sizes:

Packet sizes 100-1500 bytes
Packet sizes 8-8192 bytes

Single Stream TCP Measurements:

TCP Traffic: Part 1

There are 2 noticeable problems - Fast Ethernet is not showing adequate throughput and Myrinet shows loss in throughput at 256 byte packet sizes. The solution for Fast ethernet is to use the Intel Ether Express card. For Myrinet the problem at 256 byte packet sizes is the use of a 4K mbuf cluster size.

TCP Traffic: Part 2

Myrinet: Effects on Throughput Using 4K and 2K Mbuf Clusters

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Last modified July 23, 1997.