Apps with 'Affinity Mask' feature

Process Explorer shows you information about which handles and DLLs processes have opened or loaded. The display consists of two sub-windows. The top always shows a list of the currently active processes, including the names of their owning accounts, whereas the information...

Process Lasso is NOT yet another task manager. It is a process priority optimization and system automation utility. Priority optimization, affinity optimization, core optimization, automated rules, automated power schemes, you name it and Process Lasso has it.

psutil is a module providing an interface for retrieving information on all running processes and system utilization (CPU, memory, disks, network, users) in a portable way by using Python, implementing many functionalities offered by command line tools such as: ps, top, df...

Project Mercury is a lightweight and unobtrusive CPU tweak that allows you to prioritize programs in order of importance and use.

taskset is used to set or retrieve the CPU affinity of a running process given its pid, or to launch a new command with a given CPU affinity.