Intel Memory Latency Checker

Intel Memory Latency Checker (MLC) is a binary-only system memory bandwidth and latency benchmark. If the download fails you may need to manually download the file from https://www.intel.com/content/www/us/en/developer/articles/tool/intelr-memory-latency-checker.html and place it in your PTS download cache. On some systems root privileges are needed to run the MLC tester.

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

Project Site

software.intel.com

Test Created

22 April 2021

Last Updated

17 December 2022

Test Maintainer

Michael Larabel

Test Type

Memory

Average Install Time

3 Seconds

Average Run Time

5 Minutes, 54 Seconds

Accolades

10k+ Downloads

Supported Platforms

Supported Architectures

x86_64

* 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.
Data updated weekly as of 3 December 2023.

Revision History

pts/intel-mlc-1.1.0 [View Source] Sat, 17 Dec 2022 10:21:58 GMT
Update against Intel MLC 3.10 upstream.

pts/intel-mlc-1.0.0 [View Source] Thu, 22 Apr 2021 17:27:00 GMT
Initial commit of Intel MLC.

Performance Metrics

Analyze Test Configuration:

Intel Memory Latency Checker 3.10

Test: Peak Injection Bandwidth - 2:1 Reads-Writes

OpenBenchmarking.org metrics for this test profile configuration based on 134 public results since 17 December 2022 with the latest data as of 2 December 2023.

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)

6 x 32 GB DDR4-2934MT

87th

109363 ^{+/- 442}

Mid-Tier

75th

< 80957

2 x 32768 MB 5600MHz F5-5600J3636D32G

75th

80886 ^{+/- 261}

4 x 32 GB DDR4-3000MT

64th

66374 ^{+/- 1}

8 x 2 GB LPDDR4-4267MT

56th

57804 ^{+/- 3500}

Median

50th

45884

4 x GB LPDDR5-6400MT

45th

37017 ^{+/- 188}

4 x 16384 MB 2933MHz Kingston HX432C16FB4

39th

34179 ^{+/- 232}

2 x 8 GB DDR4-3200MT

29th

27952 ^{+/- 31}

Low-Tier

25th

< 25850

1 x 8192 MB 2666MHz HMA81GS6DJR8N-VK

10th

14207 ^{+/- 954}

Based on OpenBenchmarking.org data, the selected test / test configuration (Intel Memory Latency Checker 3.10 - Test: Peak Injection Bandwidth - 2:1 Reads-Writes) 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 0.2%.

Notable Instruction Set Usage

Notable instruction set extensions supported by this test, based on an automatic analysis by the Phoronix Test Suite / OpenBenchmarking.org analytics engine.

Instruction Set

Support

Instructions Detected

SSE2 (SSE2)

Used by default on supported hardware.

CVTSI2SD DIVSD UCOMISD CVTTSD2SI CVTSS2SD SUBSD MOVAPD MOVDQA MOVNTDQ MULSD ADDSD CLFLUSH

Advanced Vector Extensions (AVX)

Used by default on supported hardware.
Found on Intel processors since Sandy Bridge (2011).
Found on AMD processors since Bulldozer (2011).

VZEROUPPER

Advanced Vector Extensions 512 (AVX512)

Used by default on supported hardware.

(ZMM REGISTER USE)

Last automated analysis: 23 December 2022

This test profile binary relies on the shared libraries libpthread.so.0, libc.so.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