Projects / IOzone


IOzone is a filesystem benchmark tool. The benchmark generates and measures a variety of file operations. Iozone has been ported to many machines and runs under many operating systems.

Operating Systems

Recent releases

  •  13 May 2008 17:59

    Release Notes: This release adds dedupe testing support. -+w and -+y options have been added.

    •  23 Apr 2008 10:31

      Release Notes: A bugfix was made for non-dedup.

      •  25 Feb 2008 16:20

        Release Notes: O_Direct support was added for Windows.

        •  12 Nov 2006 19:10

          Release Notes: This release adds support for block device testing. It adds support for multi-node testing with the full path name to test files.

          •  29 Oct 2006 18:56

            Release Notes: This release adds Dragonfly and has some minor bugfixes.

            Recent comments

            07 Jun 2002 19:14 capps

            To help with any confusion
            Iozone has been available for over 10 years. A new project called "piozone" has popped up. It is not related to Iozone. If you have any problems with it then you need to contact its author. Although it is clearly a name grab, all efforts to get its name changed have failed. So, please, when it fails to even compile, please contact its author and remember that it is not associated, even remotely, with Iozone.

            09 Mar 2002 14:18 capps

            Link to another benchmark
            Iozone provides extensive capabilities but is a bit complex to use. If you just need a quick wet thumb on I/O performance, take a look at Bonnie.


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