MBW

This is a basic/simple memory (RAM) bandwidth benchmark for memory copy operations.

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

Project Site

github.com

Test Created

8 September 2018

Test Maintainer

Michael Larabel 

Test Type

Memory

Average Install Time

2 Seconds

Average Run Time

1 Minute, 57 Seconds

Test Dependencies

C/C++ Compiler Toolchain

Accolades

30k+ Downloads + 5k+ Public Benchmark Results

Supported Platforms


Public Result Uploads *Reported Installs **Reported Test Completions **Test Profile Page Views ***OpenBenchmarking.orgEventsMBW Popularity Statisticspts/mbw2018.092018.112019.012019.032019.052019.072019.092019.112020.012020.032020.052020.072020.092020.112021.012021.032021.052021.072021.092021.112022.012022.032022.052022.072022.092022.112023.012023.032023.052023.072023.092023.112024.012024.03110K220K330K440K550K
* 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 21 April 2024.
Memory Copy46.6%Memory Copy, Fixed Block Size53.4%Test Option PopularityOpenBenchmarking.org
8192 MiB19.5%4096 MiB15.8%1024 MiB25.0%512 MiB16.7%128 MiB23.1%Array Size Option PopularityOpenBenchmarking.org

Revision History

pts/mbw-1.0.0   [View Source]   Sat, 08 Sep 2018 13:40:44 GMT
Initial commit of memory bandwidth memcopy 'mbw' benchmark.

Suites Using This Test

Memory Test Suite

Common Kernel Benchmarks

CPU Massive


Performance Metrics

Analyze Test Configuration:

MBW 2018-09-08

Test: Memory Copy, Fixed Block Size - Array Size: 512 MiB

OpenBenchmarking.org metrics for this test profile configuration based on 743 public results since 5 October 2018 with the latest data as of 25 April 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
MiB/s (Average)
100th
7
14288 +/- 80
99th
3
14046 +/- 57
99th
4
13519 +/- 13
97th
4
11810 +/- 969
97th
3
11596 +/- 1388
88th
5
9085 +/- 160
Mid-Tier
75th
< 8433
73rd
170
8300 +/- 370
72nd
64
8285 +/- 348
64th
12
8069 +/- 1112
63rd
3
8048 +/- 431
61st
3
7987 +/- 135
51st
4
7677 +/- 23
51st
5
7582 +/- 470
Median
50th
7523
36th
3
5192 +/- 725
33rd
33
5128 +/- 53
27th
7
5047 +/- 55
Low-Tier
25th
< 4993
19th
4
4747 +/- 61
18th
43
4722 +/- 666
OpenBenchmarking.orgDistribution Of Public Results - Test: Memory Copy, Fixed Block Size - Array Size: 512 MiB743 Results Range From 1863 To 19344 MiB/s186322132563291332633613396343134663501353635713606364136763711374637813816385138863921395639913102631061310963113131166312013123631271313063134131376314113144631481315163155131586316213165631691317263176131796318313186631901319363306090120150

Based on OpenBenchmarking.org data, the selected test / test configuration (MBW 2018-09-08 - Test: Memory Copy, Fixed Block Size - Array Size: 512 MiB) 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 BenchmarkTest: Memory Copy, Fixed Block Size - Array Size: 512 MiBRun-Time246810Min: 1 / Avg: 1.01 / Max: 3

Based on public OpenBenchmarking.org results, the selected test / test configuration has an average standard deviation of 0.2%.

OpenBenchmarking.orgPercent, Fewer Is BetterAverage Deviation Between RunsTest: Memory Copy, Fixed Block Size - Array Size: 512 MiBDeviation246810Min: 0 / Avg: 0.2 / Max: 3

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)
Loongson LoongArch 64-bit
loongarch64
Loongson-3A5000LL, Loongson-3C5000
ARMv8 64-bit
aarch64
ARMv8 Cortex-A72 64-Core, ARMv8 Neoverse-N1 128-Core, ARMv8 Neoverse-V2 72-Core

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