An apparatus, system, and method are disclosed for probing a computer process. A probe parameter module determines a process identifier, a probe interval, and a probe action. The process identifier uniquely identifies a computer process. A start timer module starts a timer with a timer interval in response to the computer process entering an executing state on a processor core. The timer interval is based on the probe interval and on an amount of time elapsed between a probe start time and the computer process entering the executing state on the processor core. An action module executes the probe action in response to the timer satisfying the timer interval while the computer process is in the executing state on the processor core.