spew

An I/O performance measurement and load generation tool

Spew is used to measure I/O performance of character devices, block devices, and regular files. It can also be used to generate high I/O loads to stress systems while verifying data integrity. Spew is easy to use and is flexible. No configuration files or complicated client/server configurations are needed. Spew also generates its own data patterns that are designed to make it easy to find and debug data integrity problems.

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