A Java test harness for profiling the I/O performance of a network or file system
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README.md

iotester

A standalone Java utility to test the network (TCP) and disk input/output performance of a cluster of machines on a network (ie. a not well understood cloud environment).

Requires Java 1.6+ and Make to be installed.

Build with :

make

Running the jar prints a usage statement which explains the parameters.

After running for a set period of time, a histogram of the I/O performance (sampled every time period) is written to a file with key metrics such as the transfer rate mean and variance.