To assign a plurality of processes to a plurality of processors in a multi-processor computer system, a plurality of processes are attached to a memory segment shared between a plurality of processors. A spin cycle is initiated in the plurality of processes, where initiating the spin cycle causes a processor-intensive operation to be performed by each of the processes, and wherein performing the processor-intensive operation by the processes induces rescheduling to be performed. As part of the rescheduling, one or more of the processes are reassigned among the processors during the spin cycle.