IOR

IOR is a parallel I/O storage benchmark making use of MPI with a particular focus on HPC (High Performance Computing) systems. IOR is developed at the Lawrence Livermore National Laboratory (LLNL).

To run this test with the Phoronix Test Suite, the basic command is: phoronix-test-suite benchmark ior.

Project Site

github.com

Test Created

11 October 2019

Last Updated

19 January 2021

Test Maintainer

Michael Larabel 

Test Type

Disk

Average Install Time

7 Seconds

Average Run Time

44 Seconds

Test Dependencies

C/C++ Compiler Toolchain + OpenMPI

Accolades

5k+ Downloads

Supported Platforms


Reported Installs*Test Completions*Public Result UploadsOpenBenchmarking.orgEventsIOR Popularity Statisticspts/ior2017.092019.102019.112019.122020.012020.022020.032020.042020.052020.062020.072020.082020.092020.102020.112020.122021.012021.022021.032021.0411002200330044005500
* 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.
Data current as of Sat, 10 Apr 2021 03:17:59 GMT.
4MB13.3%64MB11.1%1024MB6.5%2MB15.0%16MB12.4%32MB12.7%512MB7.0%8MB13.1%256MB8.8%Block Size Option PopularityOpenBenchmarking.org
Default Test Directory90.4%/9.6%Disk Target Option PopularityOpenBenchmarking.org

Revision History

pts/ior-1.1.1   [View Source]   Tue, 19 Jan 2021 08:19:38 GMT
Update IOR arg handling for disk targets.

pts/ior-1.1.0   [View Source]   Mon, 18 Jan 2021 18:43:19 GMT
Update against IOE 3.3 upstream, expose more test options.

pts/ior-1.0.0   [View Source]   Fri, 11 Oct 2019 14:58:11 GMT
Initial commit of IOR storage benchmark.

Suites Using This Test

Disk Test Suite


Performance Metrics

Analyze Test Configuration:

IOR 3.3.0

Block Size: 2MB - Disk Target: Default Test Directory

OpenBenchmarking.org metrics for this test profile configuration based on 161 public results since 18 January 2021 with the latest data as of 9 April 2021.

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
# Matching Public Results
MB/s (Average)
Mid-Tier
75th
< 892
75th
3
879 +/- 31
59th
3
670 +/- 4
Median
50th
520
Low-Tier
25th
< 247
20th
4
237 +/- 1
18th
6
230 +/- 30
17th
3
223 +/- 4
OpenBenchmarking.orgDistribution Of Public Results - Block Size: 2MB - Disk Target: Default Test Directory159 Results Range From 17 To 1610 MB/s1757971371772172572973373774174574975375776176576977377778178578979379771017105710971137117712171257129713371377141714571497153715771617510152025

Based on OpenBenchmarking.org data, the selected test / test configuration (IOR 3.3.0 - Block Size: 2MB - Disk Target: Default Test Directory) 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 BenchmarkBlock Size: 2MB - Disk Target: Default Test DirectoryRun-Time3691215Min: 1 / Avg: 1.52 / Max: 8

Based on public OpenBenchmarking.org results, the selected test / test configuration has an average standard deviation of 3.2%.

OpenBenchmarking.orgPercent, Fewer Is BetterAverage Deviation Between RunsBlock Size: 2MB - Disk Target: Default Test DirectoryDeviation510152025Min: 0 / Avg: 3.24 / Max: 18

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