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This page contains the information about the submission procedure.


The IO-500 list is released during ISC and SC. Submissions to the upcoming list can be made all year. However, to be included in the next release, we must receive the submission the last Sunday before of the respective conference.

Submission instructions

There are two options to submit to the IO-500:

1) Use our online form.

2) Send an email with attachments:

  • The (potentially) adapted
  • The output directory of the benchmark (variable io500_result_dir in
  • If possible, please mention which system is covered of the CDCL or provide system information such that we can add the system to the CDCL!

We will reply to you, to confirm reception and any question that may arise.

Handling of the submitted data

Until the release of the list, the submission committee will handle all submitted data confidentially. That means that we will not disclose any submitted data to individuals/companies, or institutions.


We will publish all data submitted, so by submitting the information you give us the right to publish the uploaded data. Submissions will be visible immediately to the IO500 Committee which currently is comprised of John Bent, Julian Kunkel, and Jay Lofstead. If there is sensitivity about early visibility to your results being seen by any of the committee (e.g. John works for DDN), please feel free to email results privately to a subset of the committee (i.e. do not use the official submission tools if you have privacy concerns).


Fetching, compiling, and running the IO500 Benchmarks is surprisingly straightforward. Although tuning can be challenging. Instructions for the former can be found in our github repo. Help with the latter can be found in our various communication channels.