Dell EMC OpenManage Essentials Version 2.5 User's Guide

Multithreading

OpenManage Essentials improves upon the optimized parallel threading implementation in the Network Monitoring Service introduced in IT Assistant.

As the discovery process is I/O intensive, you can optimize the process by making it a parallel operation, where threads running in parallel (known as multi-threading) send requests and handle responses to several devices simultaneously.

The more threads that run in parallel, each communicating to a different device, the faster is the discovery; barring overall high network congestion or latency. The discovery process, by default, allows a maximum of 32 threads to run in parallel (or concurrently) at any one time for discovery.

To control the number of parallel threads executing, move the discovery throttle control either left or right. When set at the maximum, 32 parallel threads are allowed to run. If the throttle is at 50%, only 16 threads are allowed to run at any one time.

As the discovery service is optimized for parallel threading operations, the system can utilize more system resources even at the same throttle setting. It is recommended that you monitor the system resources so that a satisfactory trade-off is made between discovery speed versus system resources available for OpenManage Essentials. Lowering or increasing the throttle depends on the system it is running on and the available resources. Note that the discovery service may take up to several minutes to adjust to a new throttle setting.

  • NOTE: For minimal discovery times on medium to large size networks (several hundred to several thousand devices), it is recommended that you install OpenManage Essentials services on a multi-processor system.

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