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

2 Minutes, 4 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/mbw2018.092018.122019.032019.062019.092019.122020.032020.062020.092020.122021.032021.062021.092021.122022.032022.062022.092022.122023.032023.062023.092023.122024.032024.062024.09120K240K360K480K600K
* 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 20 November 2024.
Memory Copy46.8%Memory Copy, Fixed Block Size53.2%Test Option PopularityOpenBenchmarking.org
8192 MiB19.3%4096 MiB15.9%1024 MiB25.3%512 MiB16.7%128 MiB22.8%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 - Array Size: 128 MiB

OpenBenchmarking.org metrics for this test profile configuration based on 932 public results since 18 September 2018 with the latest data as of 19 November 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
4
28043 +/- 134
100th
7
27912 +/- 353
100th
4
25067 +/- 463
98th
3
21436 +/- 1936
94th
22
17714 +/- 272
92nd
3
16675 +/- 466
89th
7
15628 +/- 381
85th
4
13638 +/- 107
Mid-Tier
75th
< 10767
61st
64
9245 +/- 458
61st
170
9222 +/- 461
54th
6
8856 +/- 110
Median
50th
8761
45th
3
8524 +/- 465
43rd
5
8080 +/- 493
40th
5
7417 +/- 225
38th
4
6993 +/- 108
34th
4
6075 +/- 120
28th
33
5142 +/- 58
Low-Tier
25th
< 5081
23rd
12
5027 +/- 194
21st
9
4963 +/- 160
20th
3
4927 +/- 40
18th
4
4830 +/- 155
18th
43
4816 +/- 716
OpenBenchmarking.orgDistribution Of Public Results - Test: Memory Copy - Array Size: 128 MiB915 Results Range From 269 To 28379 MiB/s2698321395195825213084364742104773533658996462702575888151871492779840104031096611529120921265513218137811434414907154701603316596171591772218285188481941119974205372110021663222262278923352239152447825041256042616726730272932785628419306090120150

Based on OpenBenchmarking.org data, the selected test / test configuration (MBW 2018-09-08 - Test: Memory Copy - Array Size: 128 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 - Array Size: 128 MiBRun-Time246810Min: 1 / Avg: 1 / Max: 1

Based on public OpenBenchmarking.org results, the selected test / test configuration has an average standard deviation of 0.4%.

OpenBenchmarking.orgPercent, Fewer Is BetterAverage Deviation Between RunsTest: Memory Copy - Array Size: 128 MiBDeviation246810Min: 0 / Avg: 0.39 / Max: 6

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-3A5000, Loongson-3A5000LL, Loongson-3C5000
Intel / AMD x86 32-bit
i686
(Many Processors)
ARMv8 64-bit
aarch64
ARMv8 Cortex-A72 64-Core, ARMv8 Neoverse-N1 128-Core, ARMv8 Neoverse-V2 72-Core, Apple

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