IOzone The IOzone benchmark tests the hard disk drive / file-system performance.
To run this test with the Phoronix Test Suite , the basic command is: phoronix-test-suite benchmark iozone .
Use with caution this test profile is currently marked Deprecated .
Test Created 6 December 2010
Last Updated 8 May 2020
Test Type Disk
Average Install Time 9 Seconds
Average Run Time 33 Minutes, 40 Seconds
Test Dependencies C/C++ Compiler Toolchain
Accolades 250k+ Downloads + 20k+ Public Benchmark Results Public Result Uploads * Reported Test Completions ** Reported Installs ** Test Profile Page Views *** OpenBenchmarking.org Events IOzone Popularity Statistics pts/iozone 2010.12 2011.05 2011.10 2012.03 2012.08 2013.01 2013.06 2013.11 2014.04 2014.09 2015.02 2015.07 2015.12 2016.05 2016.10 2017.03 2017.08 2018.01 2018.06 2018.11 2019.04 2019.09 2020.02 2020.07 2020.12 2021.05 2021.10 2022.03 2022.08 2023.01 2023.06 2023.11 2024.04 2024.09 200K 400K 600K 800K 1000K
* Uploading of benchmark result data to OpenBenchmarking.org is always optional (opt-in) via the Phoronix Test Suite for users wishing to share their results publicly. ** Data based on those opting to upload their test results to OpenBenchmarking.org and users enabling the opt-in anonymous statistics reporting while running benchmarks from an Internet-connected platform. *** Test profile page view reporting began March 2021. Data updated weekly as of 3 October 2024.
4Kb 33.8% 2MB 5.6% 1MB 32.0% 64Kb 28.6% Record Size Option Popularity OpenBenchmarking.org
512MB 35.0% 4GB 19.4% 8GB 21.2% 2GB 24.4% File Size Option Popularity OpenBenchmarking.org
Read Performance 48.4% Write Performance 51.6% Disk Test Option Popularity OpenBenchmarking.org
Revision Historypts/iozone-1.9.6 [View Source ] Fri, 08 May 2020 20:00:01 GMT Fix https://github.com/phoronix-test-suite/test-profiles/issues/139 and mark test profile as deprecated.
pts/iozone-1.9.5 [View Source ] Fri, 07 Dec 2018 12:04:58 GMT Add FreeBSD support https://github.com/phoronix-test-suite/test-profiles/pull/51
pts/iozone-1.9.4 [View Source ] Sat, 07 Apr 2018 20:36:24 GMT Iozone doesn't work right on BSD out-of-the-box.
pts/iozone-1.9.3 [View Source ] Wed, 28 Feb 2018 17:04:31 GMT Use the Windows zip package.
pts/iozone-1.9.2 [View Source ] Wed, 28 Feb 2018 17:02:42 GMT Set the Windows bit.
pts/iozone-1.9.1 [View Source ] Wed, 28 Feb 2018 17:01:40 GMT Restore Windows support for iozone.
pts/iozone-1.9.0 [View Source ] Wed, 28 Jun 2017 13:33:12 GMT Fix result parser, update against latest upstream
pts/iozone-1.8.0 [View Source ] Sun, 29 Apr 2012 12:10:47 GMT 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 ] Mon, 06 Dec 2010 14:53:27 GMT Initial import into OpenBenchmarking.org
Performance MetricsAnalyze Test Configuration: pts/iozone-1.9.x - Record Size: 4Kb - File Size: 512MB - Disk Test: Write Performance pts/iozone-1.9.x - Record Size: 4Kb - File Size: 512MB - Disk Test: Read Performance pts/iozone-1.9.x - Record Size: 1MB - File Size: 512MB - Disk Test: Write Performance pts/iozone-1.9.x - Record Size: 1MB - File Size: 512MB - Disk Test: Read Performance pts/iozone-1.9.x - Record Size: 64Kb - File Size: 512MB - Disk Test: Write Performance pts/iozone-1.9.x - Record Size: 64Kb - File Size: 512MB - Disk Test: Read Performance pts/iozone-1.9.x - Record Size: 1MB - File Size: 2GB - Disk Test: Read Performance pts/iozone-1.9.x - Record Size: 4Kb - File Size: 8GB - Disk Test: Write Performance pts/iozone-1.9.x - Record Size: 1MB - File Size: 2GB - Disk Test: Write Performance pts/iozone-1.9.x - Record Size: 1MB - File Size: 8GB - Disk Test: Write Performance pts/iozone-1.9.x - Record Size: 4Kb - File Size: 2GB - Disk Test: Read Performance pts/iozone-1.9.x - Record Size: 64Kb - File Size: 2GB - Disk Test: Write Performance pts/iozone-1.9.x - Record Size: 4Kb - File Size: 2GB - Disk Test: Write Performance pts/iozone-1.9.x - Record Size: 64Kb - File Size: 2GB - Disk Test: Read Performance pts/iozone-1.9.x - Record Size: 1MB - File Size: 4GB - Disk Test: Read Performance pts/iozone-1.9.x - Record Size: 1MB - File Size: 8GB - Disk Test: Read Performance pts/iozone-1.9.x - Record Size: 1MB - File Size: 4GB - Disk Test: Write Performance pts/iozone-1.9.x - Record Size: 4Kb - File Size: 8GB - Disk Test: Read Performance pts/iozone-1.9.x - Record Size: 4Kb - File Size: 4GB - Disk Test: Write Performance pts/iozone-1.9.x - Record Size: 4Kb - File Size: 4GB - Disk Test: Read Performance pts/iozone-1.9.x - Record Size: 64Kb - File Size: 4GB - Disk Test: Write Performance pts/iozone-1.9.x - Record Size: 64Kb - File Size: 8GB - Disk Test: Write Performance pts/iozone-1.9.x - Record Size: 64Kb - File Size: 4GB - Disk Test: Read Performance pts/iozone-1.9.x - Record Size: 64Kb - File Size: 8GB - Disk Test: Read Performance pts/iozone-1.9.x - Record Size: 2MB - File Size: 512MB - Disk Test: Write Performance pts/iozone-1.9.x - Record Size: 2MB - File Size: 512MB - Disk Test: Read Performance pts/iozone-1.9.x - Record Size: 2MB - File Size: 2GB - Disk Test: Read Performance pts/iozone-1.9.x - Record Size: 2MB - File Size: 2GB - Disk Test: Write Performance pts/iozone-1.9.x - Record Size: 2MB - File Size: 4GB - Disk Test: Read Performance pts/iozone-1.9.x - Record Size: 2MB - File Size: 8GB - Disk Test: Write Performance pts/iozone-1.9.x - Record Size: 2MB - File Size: 8GB - Disk Test: Read Performance pts/iozone-1.9.x - Record Size: 2MB - File Size: 4GB - Disk Test: Write Performance pts/iozone-1.9.x - Record Size: 128Kb - File Size: 512MB - Disk Test: Write Performance pts/iozone-1.9.x - Record Size: 128Kb - File Size: 8GB - Disk Test: Write Performance pts/iozone-1.9.x - Record Size: 128Kb - File Size: 512MB - Disk Test: Read Performance pts/iozone-1.8.x - Record Size: 4Kb - File Size: 2GB - Disk Test: Read Performance pts/iozone-1.8.x - Record Size: 4Kb - File Size: 2GB - Disk Test: Write Performance pts/iozone-1.8.x - Record Size: 4Kb - File Size: 512MB - Disk Test: Write Performance pts/iozone-1.8.x - Record Size: 4Kb - File Size: 512MB - Disk Test: Read Performance pts/iozone-1.8.x - 8GB Write Performance pts/iozone-1.8.x - 8GB Read Performance pts/iozone-1.8.x - Record Size: 4Kb - File Size: 8GB - Disk Test: Write Performance pts/iozone-1.8.x - Record Size: 1MB - File Size: 8GB - Disk Test: Read Performance pts/iozone-1.8.x - Record Size: 1MB - File Size: 8GB - Disk Test: Write Performance pts/iozone-1.8.x - Record Size: 64Kb - File Size: 512MB - Disk Test: Read Performance pts/iozone-1.8.x - Record Size: 64Kb - File Size: 512MB - Disk Test: Write Performance pts/iozone-1.8.x - Record Size: 1MB - File Size: 512MB - Disk Test: Write Performance pts/iozone-1.8.x - Record Size: 1MB - File Size: 512MB - Disk Test: Read Performance pts/iozone-1.8.x - Record Size: 4Kb - File Size: 8GB - Disk Test: Read Performance pts/iozone-1.8.x - Record Size: 64Kb - File Size: 8GB - Disk Test: Write Performance pts/iozone-1.8.x - Record Size: 1MB - File Size: 2GB - Disk Test: Write Performance pts/iozone-1.8.x - Record Size: 1MB - File Size: 2GB - Disk Test: Read Performance pts/iozone-1.8.x - Record Size: 64Kb - File Size: 8GB - Disk Test: Read Performance pts/iozone-1.8.x - Record Size: 64Kb - File Size: 2GB - Disk Test: Write Performance pts/iozone-1.8.x - Record Size: 64Kb - File Size: 2GB - Disk Test: Read Performance pts/iozone-1.8.x - Record Size: 4Kb - File Size: 4GB - Disk Test: Read Performance pts/iozone-1.8.x - Record Size: 4Kb - File Size: 4GB - Disk Test: Write Performance pts/iozone-1.8.x - Record Size: 1MB - File Size: 4GB - Disk Test: Read Performance pts/iozone-1.8.x - Record Size: 1MB - File Size: 4GB - Disk Test: Write Performance pts/iozone-1.8.x - Record Size: 64Kb - File Size: 4GB - Disk Test: Read Performance pts/iozone-1.8.x - Record Size: 64Kb - File Size: 4GB - Disk Test: Write Performance pts/iozone-1.8.x - Size: 4GB - Disk Test: Write Performance pts/iozone-1.8.x - Size: 4GB - Disk Test: Read Performance pts/iozone-1.7.x - 8GB Write Performance pts/iozone-1.7.x - 8GB Read Performance pts/iozone-1.7.x - Record Size: 64Kb - File Size: 8GB - Disk Test: Write Performance pts/iozone-1.7.x - Record Size: 64Kb - File Size: 8GB - Disk Test: Read Performance pts/iozone-1.7.x - Record Size: 4Kb - File Size: 512MB - Disk Test: Write Performance pts/iozone-1.7.x - Record Size: 4Kb - File Size: 512MB - Disk Test: Read Performance pts/iozone-1.7.x - Record Size: 4Kb - File Size: 8GB - Disk Test: Write Performance pts/iozone-1.7.x - Record Size: 4Kb - File Size: 8GB - Disk Test: Read Performance pts/iozone-1.7.x - Record Size: 64Kb - File Size: 512MB - Disk Test: Write Performance pts/iozone-1.7.x - Record Size: 64Kb - File Size: 512MB - Disk Test: Read Performance pts/iozone-1.7.x - Record Size: 1MB - File Size: 512MB - Disk Test: Read Performance pts/iozone-1.7.x - Record Size: 1MB - File Size: 512MB - Disk Test: Write Performance pts/iozone-1.7.x - Record Size: 1MB - File Size: 8GB - Disk Test: Write Performance pts/iozone-1.7.x - Record Size: 4Kb - File Size: 2GB - Disk Test: Write Performance pts/iozone-1.7.x - Record Size: 4Kb - File Size: 2GB - Disk Test: Read Performance pts/iozone-1.7.x - Record Size: 1MB - File Size: 8GB - Disk Test: Read Performance pts/iozone-1.7.x - Record Size: 64Kb - File Size: 2GB - Disk Test: Write Performance pts/iozone-1.7.x - Record Size: 64Kb - File Size: 2GB - Disk Test: Read Performance pts/iozone-1.7.x - Record Size: 1MB - File Size: 2GB - Disk Test: Write Performance pts/iozone-1.7.x - Record Size: 1MB - File Size: 2GB - Disk Test: Read Performance pts/iozone-1.7.x - Record Size: 1MB - File Size: 4GB - Disk Test: Write Performance pts/iozone-1.7.x - Record Size: 64Kb - File Size: 4GB - Disk Test: Read Performance pts/iozone-1.7.x - Record Size: 64Kb - File Size: 4GB - Disk Test: Write Performance pts/iozone-1.7.x - Record Size: 1MB - File Size: 4GB - Disk Test: Read Performance pts/iozone-1.7.x - Record Size: 4Kb - File Size: 4GB - Disk Test: Write Performance pts/iozone-1.7.x - Record Size: 4Kb - File Size: 4GB - Disk Test: Read Performance IOzone 3.465 Record Size: 4Kb - File Size: 512MB - Disk Test: Write Performance OpenBenchmarking.org metrics for this test profile configuration based on 2,541 public results since 28 June 2017 with the latest data as of 1 October 2024 .
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
# Compatible Public Results
MB/s (Average)
OpenBenchmarking.org Distribution Of Public Results - Record Size: 4Kb - File Size: 512MB - Disk Test: Write Performance 2541 Results Range From 0 To 5028 MB/s 101 202 303 404 505 606 707 808 909 1010 1111 1212 1313 1414 1515 1616 1717 1818 1919 2020 2121 2222 2323 2424 2525 2626 2727 2828 2929 3030 3131 3232 3333 3434 3535 3636 3737 3838 3939 4040 4141 4242 4343 4444 4545 4646 4747 4848 4949 5050 300 600 900 1200 1500
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 7 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.org Minutes Time Required To Complete Benchmark Record Size: 4Kb - File Size: 512MB - Disk Test: Write Performance Run-Time 20 40 60 80 100 Min: 1 / Avg: 6.45 / Max: 124
Based on public OpenBenchmarking.org results, the selected test / test configuration has an average standard deviation of 3.6% .
OpenBenchmarking.org Percent, Fewer Is Better Average Deviation Between Runs Record Size: 4Kb - File Size: 512MB - Disk Test: Write Performance Deviation 6 12 18 24 30 Min: 0 / Avg: 3.58 / Max: 25
Tested CPU Architectures This benchmark has been successfully tested on the below mentioned architectures. The CPU architectures listed is where successful OpenBenchmarking.org result uploads occurred, namely for helping to determine if a given test is compatible with various alternative CPU architectures.
CPU Architecture
Kernel Identifier
Verified On
Intel / AMD x86 64-bit
x86_64
(Many Processors)
IBM POWER (PowerPC) 64-bit
ppc64le
POWER9 80-Core
Intel / AMD x86 32-bit
i686
(Many Processors)
ARMv7 32-bit
armv7l
ARMv7 Cortex-A15 8-Core, ARMv7 Cortex-A53 4-Core, ARMv7 Cortex-A72 4-Core, ARMv7 rev 1 4-Core, ARMv7 rev 2, ARMv7 rev 2 2-Core, ARMv7 rev 3 4-Core, ARMv7 rev 3 8-Core, ARMv7 rev 4 4-Core
ARMv6 32-bit
armv6l
ARMv6-compatible rev 7
ARMv8 64-bit
aarch64
AArch64 rev 4, ARMVv8 Cortex-A72 6-Core, ARMv8 Cortex-A53 24-Core, ARMv8 Cortex-A53 4-Core, ARMv8 Cortex-A55 4-Core, ARMv8 Cortex-A57 4-Core, ARMv8 Cortex-A72 6-Core, ARMv8 Neoverse-N1 16-Core, ARMv8 rev 0 6-Core, Ampere ARMv8 Neoverse-N1 160-Core, Ampere eMAG ARMv8 32-Core, Phytium D2000, Rockchip ARMv8 Cortex-A53 4-Core, Rockchip ARMv8 Cortex-A76 4-Core, SiFive RISC-V
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