Measuring TCP bandwidth on top of a Gigabit and Myrinet network
Tipo de documentoReport de recerca
Fecha de publicación2009
Condiciones de accesoAcceso abierto
In this article we measure the bandwidth achieved by the TCP protocol on top of a Gigabit and Myrinet network. We have created a synthetic benchmark, consisting on a server and a client that both produce and consume data, to measure bandwidth. Four different versions of this benchmark are evaluated: (a) a simple one-threaded version; (b) a version that can consume data if the producer is unable to produce data; (c) a version with the Nagle algorithm disabled; and (d) a version where producers and consumers are threads on their owns. The results shows that on both networks: (1) it is necessary to drain the network to avoid deadlocks; (2) the Nagle algorithm is useful and gets smaller variation in results; and (3) adding an extra thread for reading reduces the maximum bandwidth achievable and it gets better bandwidth for bigger messages and worse for smaller ones when a great number of messages are sent.
Forma parte deUPC-DAC-RR-2009-69