Thread pool count

By default, z/OS® Explorer tries to add 10 users to a single thread pool using a default maximum Java™ heap of 512 MB, allowing an average of 51 MB heap usage per user (10*51 = 510). Our requirements indicate that we anticipate a lower average Java heap usage per user (20 MB), so we can increase the number of clients per thread pool by setting maximum.clients to 20 (512/20 = 25). However, this also indicates that we should increase the maximum.threads from the default of 250 to 420 (14+20*(19+1)=414).

With 25 clients per thread pool and the need to support 500 connections, we now know we will need 20 thread pool address spaces.