Could someone provide a brief description of the worker thread duties in the current Qpid release?
The broker uses IO threads for all the work it does. This means that when work is signalled via an event (socket, RDMA, timer) an IO thread is scheduled and it runs until it completes the work and then returns back to the IO thread pool. This allows the CPUs to be utilized efficiently. The general rule is that we allocate 1 thread per core +1. So on a 8 way machine you see worker-threads default to 9. On a 4 way it will be 5. Sometimes it if work changing the default allocation if: a.) you run on high core count machine >8 to a lower number b.
