Monitor huge pages memory with DX UIM

Products

• DX Unified Infrastructure Management (Nimsoft / UIM)

Issue/Introduction

Is there any DX UIM probe that is able to monitor huge pages free memory on Linux servers?

Does the CDM probe support monitoring huge pages?

Environment

• DX UIM 23.4.*
• cdm any version

Cause

Guidance

Resolution

Huge Pages: 

Huge Pages or Large Pages are a memory management feature in operating systems like Linux. Huge Pages allow the system to allocate memory in larger chunks (e.g., 2MB, 1GB) instead of the default page size (e.g., 4KB). This can reduce the overhead of memory management and improve performance for applications that use a lot of memory, like databases (e.g., Oracle, PostgreSQL) or virtual machines.

Huge Pages can be seen by querying /proc/meminfo

 

How to monitor:
 

• CDM probe: Although the CDM probe monitors memory using /proc/meminfo it does not currently support the Huge Pages metrics for Linux. It would require an enhancement. 

• Logmon probe: To monitor these values, it is possible to create a custom monitor using logmon command output monitoring: See Use logmon to Collect QoS Data

Additional Information

Related Articles:

• Use logmon to Collect QoS Data
• How does CDM probe calculate memory usage on ALL OS systems
• cdm Metrics