Article ID: 000055148 Content Type: Maintenance & Performance Last Reviewed: 01/06/2023

How to Benchmark Intel® Optane™ Persistent Memory Using Intel® Memory Latency Checker (Intel® MLC)


Find documentation steps and request troubleshooting.


Unable to use Intel® MLC with Intel® Optane™ persistent memory


Intel® Memory Latency Checker (Intel® MLC) is a tool used to measure memory latencies and bandwidth, and how they change with increasing load on the system. It also provides several options for more fine-grained investigation where bandwidth and latencies from a specific set of cores to caches or memory can be measured as well.

  • Go to the Intel® Memory Latency Checker site to download the tool.
    • In this site you will also find the installation steps and the command line arguments that can be used.
Additional information

If further assistance is required, please gather the following information and contact Intel Customer Support:

  1. Command sequence used while configuring the memory modules.
  2. The results of running the following commands: 
    • ndctl list
    • ndctl list --regions --human (or ndctl list--Ru)
    • ndctl list -D -n namespace-id
    • ipmctl show –namespace

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