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 system/iozone.

Project Site

iozone.org

Test Created

12 September 2017

Last Updated

8 April 2018

Test Maintainer

Michael Larabel 

Test Type

Disk

Average Install Time

4 Seconds

Average Run Time

3 Minutes, 29 Seconds

Test Dependencies

C/C++ Compiler Toolchain

Accolades

30k+ Downloads

Supported Platforms

Public Result Uploads *Reported Installs **Reported Test Completions **Test Profile Page Views ***OpenBenchmarking.orgEventsIOzone Popularity Statisticssystem/iozone2017.092017.122018.032018.062018.092018.122019.032019.062019.092019.122020.032020.062020.092020.122021.032021.062021.092021.122022.032022.062022.092022.122023.032023.062023.092023.122024.032024.062024.092024.1220K40K60K80K100K
* 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 16 February 2025.
64Kb34.4%1MB33.6%4Kb32.0%Record Size Option PopularityOpenBenchmarking.org
512MB33.6%8GB15.0%4GB18.0%2GB33.3%File Size Option PopularityOpenBenchmarking.org
Write Performance49.9%Read Performance50.1%Disk Test Option PopularityOpenBenchmarking.org

Revision History

system/iozone-1.9.4   [View Source]   Sun, 08 Apr 2018 13:07:31 GMT
Add SystemDependencies = iozone

system/iozone-1.0.1   [View Source]   Wed, 13 Sep 2017 12:27:28 GMT
system/iozone works fine on BSD

system/iozone-1.0.0   [View Source]   Tue, 12 Sep 2017 19:31:53 GMT
Initial commit of a system/ iozone test profile


Performance Metrics

Analyze Test Configuration:

IOzone 3.465

Record Size: 64Kb - File Size: 2GB - Disk Test: Read Performance

OpenBenchmarking.org metrics for this test profile configuration based on 207 public results since 9 April 2018 with the latest data as of 3 February 2025.

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)
1000GB Samsung SSD 970 EVO 1TB
100th
4
13099 +/- 1945
2879GB PERC H745 Adp
95th
3
11061 +/- 1512
400GB NVME&SATA
85th
3
6787 +/- 301
Mid-Tier
75th
< 6026
1024GB ZHITAI PC005 Active 1TB
51st
3
3961 +/- 34
Median
50th
3935
1024GB ADATA SX8200PNP
42nd
6
3735 +/- 424
400GB Google PersistentDisk Disk
33rd
81
3510 +/- 356
16GB DG4016
29th
8
3386 +/- 277
Detailed Performance Overview
OpenBenchmarking.orgDistribution Of Public Results - Record Size: 64Kb - File Size: 2GB - Disk Test: Read Performance207 Results Range From 189 To 14808 MB/s18948277510681361165419472240253328263119341237053998429145844877517054635756604963426635692872217514780781008393868689799272956598581015110444107371103011323116161190912202124951278813081133741366713960142531454614839918273645

Based on OpenBenchmarking.org data, the selected test / test configuration (IOzone 3.465 - Record Size: 64Kb - File Size: 2GB - Disk Test: Read Performance) has an average run-time of 3 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: 64Kb - File Size: 2GB - Disk Test: Read PerformanceRun-Time816243240Min: 1 / Avg: 2.41 / Max: 37

Based on public OpenBenchmarking.org results, the selected test / test configuration has an average standard deviation of 3.4%.

OpenBenchmarking.orgPercent, Fewer Is BetterAverage Deviation Between RunsRecord Size: 64Kb - File Size: 2GB - Disk Test: Read PerformanceDeviation48121620Min: 0 / Avg: 3.41 / Max: 15

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)
MIPS 64-bit
mips64
Loongson-3A R4

Recent Test Results

OpenBenchmarking.org Results Compare

1 System - 24 Benchmark Results

Intel Xeon X5680 - ASUS Rampage III GENE - Intel 5520

Ubuntu 24.04 - 6.8.0-52-generic - GCC 13.3.0

1 System - 24 Benchmark Results

AMD EPYC 9754 128-Core - Supermicro H13SSH - AMD Device 14a4

Ubuntu 20.04 - 5.4.0-64-generic - 1.1.182

2 Systems - 35 Benchmark Results

ARMv8 Cortex-A76 - Raspberry Pi 5 Model B Rev 1.0 - Broadcom BCM2712

Debian 12 - 6.6.51+rpt-rpi-2712 - GNOME Shell 43.9

10 Systems - 35 Benchmark Results

4 x AMD EPYC 9354 32-Core - Intel 440BX - 32GB

Ubuntu 20.04.4 LTS - 5.10.142-1.ph4-esx - GCC 9.4.0

12 Systems - 35 Benchmark Results

AMD EPYC 7313 16-Core - Intel 440BX - 32GB

Ubuntu 20.04.4 LTS - 5.10.142-1.ph4-esx - GCC 9.4.0

1 System - 40 Benchmark Results

Intel Xeon - Google Compute Engine c2-standard-8 - 2 x 16384 MB

Microsoft Windows Server 2022 Datacenter Build 20348 - 10.0.20348.1787 - 1.1.4.28

1 System - 40 Benchmark Results

Intel Xeon - Google Compute Engine c2-standard-8 - 2 x 16384 MB

Microsoft Windows Server 2022 Datacenter Build 20348 - 10.0.20348.1787 - 1.1.4.28

1 System - 40 Benchmark Results

Intel Xeon - Google Compute Engine c2-standard-8 - 2 x 16384 MB

Microsoft Windows Server 2022 Datacenter Build 20348 - 10.0.20348.1787 - 1.1.4.28

1 System - 40 Benchmark Results

Intel Xeon - Google Compute Engine c2-standard-8 - 2 x 16384 MB

Microsoft Windows Server 2022 Datacenter Build 20348 - 10.0.20348.1787 - 1.1.4.28

1 System - 40 Benchmark Results

Intel Xeon - Google Compute Engine c2-standard-8 - 2 x 16384 MB

Microsoft Windows Server 2022 Datacenter Build 20348 - 10.0.20348.1787 - 1.1.4.28

1 System - 40 Benchmark Results

Intel Xeon - Google Compute Engine c2-standard-8 - 2 x 16384 MB

Microsoft Windows Server 2022 Datacenter Build 20348 - 10.0.20348.1787 - 1.1.4.28

1 System - 40 Benchmark Results

Intel Xeon - Google Compute Engine c2-standard-8 - 2 x 16384 MB

Microsoft Windows Server 2022 Datacenter Build 20348 - 10.0.20348.1787 - 1.1.4.28
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