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, 58 Seconds

Test Dependencies

C/C++ Compiler Toolchain

Accolades

30k+ Downloads + 5k+ Public Benchmark Results

Supported Platforms

* 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 29 April 2024.

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 871 public results since 18 September 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)

2 x 16 GB 6000MT

100th

27912 ^{+/- 353}

2 x 8 GB DDR4-4400MT

100th

25067 ^{+/- 463}

4 x 32 GB DDR5-3600MT

99th

21436 ^{+/- 1936}

2 x 16384 MB DDR4-3200MT

95th

17714 ^{+/- 272}

1 x 480GB DRAM-6400MT

92nd

16675 ^{+/- 466}

2 x 8192 MB DDR4-3000MT

89th

15628 ^{+/- 381}

8 x 16384 MB DDR4-2400MT

85th

13638 ^{+/- 107}

Mid-Tier

75th

< 10534

8 x 8192 MB DDR4-3200MT

62nd

9245 ^{+/- 458}

8 x GB DDR4-3200MT

61st

170

9222 ^{+/- 461}

8 x 16384 MB DDR4-3200MT

54th

8856 ^{+/- 110}

Median

50th

8768

6 x 4096 MB DDR4-2666MT

45th

8524 ^{+/- 465}

1.96875 x 32768 MB DDR4-2400MT

44th

8348 ^{+/- 582}

6 x 32 GB DDR4-2933MT

42nd

8080 ^{+/- 493}

8 x 16384 MB DDR4-2133MT

39th

7417 ^{+/- 225}

1 x 16384 MB DDR4-2400MT

37th

6993 ^{+/- 108}

2 x 8192 MB DDR4-2133MHz Hynix HMA81GR7AFR8N-VK

34th

6240 ^{+/- 433}

1 x 8192 MB DDR4-2400MT

33rd

6075 ^{+/- 120}

4 x 16 GB DDR4-2933MT

27th

5142 ^{+/- 58}

Low-Tier

25th

< 5097

12 x 32 GB DDR4-2934MT

22nd

5027 ^{+/- 194}

12 x 16384 MB DDR4-3200MT

22nd

5003 ^{+/- 27}

12 x 8192 MB DDR4-2666MT

21st

4927 ^{+/- 40}

8 x 32 GB DDR4-2400MT

21st

4917 ^{+/- 230}

12 x 32 GB DDR4-2666MT

18th

4830 ^{+/- 155}

4 x 16384 MB DDR4-2933MT

18th

4816 ^{+/- 716}

12 x 16384 MB DDR4-2934MT

17th

4738 ^{+/- 35}

12 x 16384 MB DDR4-2666MT

14th

4498 ^{+/- 36}

1 x 4096 MB DDR3-1333MHz Kingston

13th

4446 ^{+/- 14}

8 x 16384 MB DDR3-1600MT

3rd

2888 ^{+/- 89}

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.

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

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

Intel / AMD x86 32-bit

i686