May 26, 2018

Lightweight tool to generate heavily fragmented I/O

iogen is a lightweight tool that generates heavily fragmented I/O. It accomplishes this by forking a number of children that run I/O to a filesystem.

This tool is intended to test storage stacks under stress and worst case scenarios. However due to heavy fragmentation of the I/O files, it tends to bypass caching algorithms in storage stacks.

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