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

6 Minutes, 31 Seconds

Accolades

20k+ Downloads

Supported Platforms

Supported Architectures

x86_64

Public Result Uploads *Reported Installs **Reported Test Completions **Test Profile Page ViewsOpenBenchmarking.orgEventsIntel Memory Latency Checker Popularity Statisticspts/intel-mlc2021.042021.052021.062021.072021.082021.092021.102021.112021.122022.012022.022022.032022.042022.052022.062022.072022.082022.092022.102022.112022.122023.012023.022023.032023.042023.052023.062023.072023.082023.092023.102023.112023.122024.012024.022024.032024.042024.052024.0680K160K240K320K400K
* 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 14 June 2024.
Max Bandwidth43.0%Peak Injection Bandwidth48.5%Idle Latency8.5%Test Option PopularityOpenBenchmarking.org

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 - All Reads

OpenBenchmarking.org metrics for this test profile configuration based on 200 public results since 17 December 2022 with the latest data as of 20 June 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
MB/s (Average)
92nd
3
114362 +/- 382
77th
6
81338 +/- 11266
Mid-Tier
75th
< 78571
74th
4
74968 +/- 8
65th
7
59678 +/- 5158
54th
11
48068 +/- 1212
Median
50th
46582
48th
4
42624 +/- 202
44th
3
40323 +/- 1322
39th
3
38046 +/- 349
30th
3
31528 +/- 15
Low-Tier
25th
< 23931
OpenBenchmarking.orgDistribution Of Public Results - Test: Peak Injection Bandwidth - All Reads198 Results Range From 7361 To 770067 MB/s73612261637871531266838183636988911141461294011446561599111751661904212056762209312361862514412666962819512972063124613277163429713582263734813887364039914192464345014497564650114802664955215107765260315412865565415717965870516023066175616328166480716633266785816938367090917243467396017548567701111020304050

Based on OpenBenchmarking.org data, the selected test / test configuration (Intel Memory Latency Checker 3.10 - Test: Peak Injection Bandwidth - All Reads) 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: Peak Injection Bandwidth - All ReadsRun-Time246810Min: 1 / Avg: 1.32 / Max: 6

Based on public OpenBenchmarking.org results, the selected test / test configuration has an average standard deviation of 0.3%.

OpenBenchmarking.orgPercent, Fewer Is BetterAverage Deviation Between RunsTest: Peak Injection Bandwidth - All ReadsDeviation246810Min: 0 / Avg: 0.34 / Max: 3

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
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
x86_64
(Many Processors)

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