1. A method for dynamic optimization of thread assignments for application workloads in a simultaneous multi-threading (SMT) computing environment, the method comprising: monitoring and periodically recording coefficients associated with an operational status of different processor cores hosting threads accessible in a thread pool of the SMT computing environment and also recording operational characteristics of different workloads of a computing application executing in the SMT computing environment, wherein the operational characteristics include a number of clock ticks consumed by a corresponding one of the workloads, a higher number of clock ticks indicating a higher degree of activity, and a measurement of cycles per instruction (CPI) consumed by a corresponding one of the workloads and a variance in measurements of CPI consumed by the corresponding one of the workloads over time, a lower variance indicating greater operational stability; identifying by way of the recorded operational characteristics of the different workloads a particular one of the workloads demonstrating both a threshold level of variance indicating operational stability and a threshold degree of activity, matching a recorded operational characteristic of the particular one of the workloads to recorded coefficients associated with the operational status of a processor core best able amongst the different processor cores to host in one or more threads execution of the particular one of the workloads; and, directing the matched processor core to host execution of the particular one of the workloads.