Process affinity scheduling method and apparatus

摘要

Process migration is controlled in multiple processor system by a circuit providing a rapid lookup to see if an available process has any affinity for the top N entries on the system run queue. If the currently available processor has an affinity for, i.e. has one or more lines of operands and/or instructions stored in its local cache related to the process, then the processor selects the process it has affinity for from the top N processes on the run queue. In this manner, unnecessary replacements of cache lines with data from main memory is reduced.