fsqual - file system qualification tool for asynchonus I/O

About

Linux AIO is notoriously bad; but it is hard to understand what the weaknesses of a filesystem implementation in a particular kernel version are. The fsqual tool provides a way to qualify a filesystem's aio implementation.

See this blog post for more information.

Currently tested attributes are:

• Asycnhronous appending write

Building

Install the following packages:

• libaio-devel (libaio-dev1 on Debian and derivatives)
• gcc-c++ (g++ on Debian and derivatives)
• make

To build, simply run

make

Running

Change to a directory under the mountpoint to be tested, and run fsqual.