HCM Extract thread allocation

Summary:

How thread allocation works in Oracle HCM

Content (please ensure you mask any confidential information):

Hello Team,

We are in process of building integration between Oracle HCM and Oracle ebusiness suite. For extracting the data using HCM Extract we have created a payroll process configuration with threads 90 (out of 120 available) for better performance.

We want to understand how thread mechanism works with payroll process configuration. As we have implemented other modules (like ERP) too on same instance. Is allocating 90 threads will impact ERP process too. If I run multiple instances of HCM Extract, how each instance will get threads allocated.