IOzone

The IOzone benchmark tests the hard disk drive / file-system performance.

Learn more about this test at the upstream project site: http://www.iozone.org/.

Use with caution this test profile is currently marked Deprecated.

This utility test profile is maintained by Michael Larabel. This OpenBenchmarking.org test profile was created on 6 December 2010 and last updated on 8 May 2020. To run this test with the Phoronix Test Suite, the basic command is: phoronix-test-suite benchmark iozone.

This test has an average install time of 10 seconds and an average run-time of 3 minutes.

250k+ Downloads + 20k+ Public Benchmark Results

Installation StatsTest Completion StatsOpenBenchmarking.orgEventsIOzone Popularitypts/iozone2015.102015.122016.022016.042016.062016.082016.102016.122017.022017.042017.062017.082017.102017.122018.022018.042018.062018.082018.102018.122019.022019.042019.062019.082019.102019.122020.022020.042020.062020.0823202040176014801110008

* Data based on those opting to upload their test results to OpenBenchmarking.org and users enabling the opt-in anonymous statistics reporting.

4Kb34.8%1MB34.2%64Kb31.0%Record Size Option PopularityOpenBenchmarking.org
4GB19.9%512MB33.3%8GB23.2%2GB23.7%File Size Option PopularityOpenBenchmarking.org
Read Performance48.6%Write Performance51.4%Disk Test Option PopularityOpenBenchmarking.org

Revision History

pts/iozone-1.9.6   [View Source]   08 May 2020 20:00 EDT
Fix https://github.com/phoronix-test-suite/test-profiles/issues/139 and mark test profile as deprecated.

pts/iozone-1.9.5   [View Source]   07 Dec 2018 12:04 EST
Add FreeBSD support https://github.com/phoronix-test-suite/test-profiles/pull/51

pts/iozone-1.9.4   [View Source]   07 Apr 2018 20:36 EDT
Iozone doesn't work right on BSD out-of-the-box.

pts/iozone-1.9.3   [View Source]   28 Feb 2018 17:04 EST
Use the Windows zip package.

pts/iozone-1.9.2   [View Source]   28 Feb 2018 17:02 EST
Set the Windows bit.

pts/iozone-1.9.1   [View Source]   28 Feb 2018 17:01 EST
Restore Windows support for iozone.

pts/iozone-1.9.0   [View Source]   28 Jun 2017 13:33 EDT
Fix result parser, update against latest upstream

pts/iozone-1.8.0   [View Source]   29 Apr 2012 12:10 EDT
Update against upstream IOzone 3.405 and also set -e argument to ensure fsync/flushes are done as part of timing.

pts/iozone-1.7.0   [View Source]   06 Dec 2010 14:53 EST
Initial import into OpenBenchmarking.org

Performance Metrics

Analyze Test Configuration:

IOzone 3.465

Record Size: 4Kb - File Size: 512MB - Disk Test: Write Performance

OpenBenchmarking.org metrics for this test profile configuration based on 1,978 public samples since 28 June 2017 with the latest data as of 28 October 2020.

Below is an overview of the generalized performance for components where there is sufficient statistically significant data based upon user-uploaded results. It is important to keep in mind particularly in the Linux/open-source space there can be vastly different OS configurations, with this overview intended to offer just general guidance as to the performance expectations.

Component
Percentile Rank
MB/s (Average)
Mid-Tier
75th
< 502
Median
50th
253
35th
127
Low-Tier
25th
< 87
23rd
82
OpenBenchmarking.orgDistribution Of Public Results - Record Size: 4Kb - File Size: 512MB - Disk Test: Write Performance1978 Results Range From 0 To 3320 MB/s06713420126833540246953660367073780487193810051072113912061273134014071474154116081675174218091876194320102077214422112278234524122479254626132680274728142881294830153082314932163283335080160240320400

Based on OpenBenchmarking.org data, the selected test / test configuration (IOzone 3.465 - Record Size: 4Kb - File Size: 512MB - Disk Test: Write Performance) has an average run-time of 2 minutes. By default this test profile is set to run at least 3 times but may increase if the standard deviation exceeds pre-defined defaults or other calculations deem additional runs necessary for greater statistical accuracy of the result.

OpenBenchmarking.orgMinutesTime Required To Complete BenchmarkRecord Size: 4Kb - File Size: 512MB - Disk Test: Write PerformanceRun-Time918273645Min: 1 / Avg: 1.67 / Max: 44

Based on public OpenBenchmarking.org results, the selected test / test configuration has an average standard deviation of 4.4%.

OpenBenchmarking.orgPercent, Fewer Is BetterAverage Deviation Between RunsRecord Size: 4Kb - File Size: 512MB - Disk Test: Write PerformanceDeviation612182430Min: 0 / Avg: 4.44 / Max: 27

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User Comments

Error running iozone 1.9.4 on Windows

Hello everyone!

I tried to run iozone-1.9.4 on Windows PC and faced the following error:

file_put_contents: failed to open stream: No such file or directory in pts_phoroscript_interpreter:317

The test executable for pts/iozone-1.9.4 could no be located.

Thank you.
Fabián

Post by fabian on 30 May 2018, 14.52.

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