Abstract: Various exemplary embodiments relate to a method of measuring CPU utilization. The method may include: executing at least one task on a multi-processing system having at least two processors; determining that a task is blocked because a resource is unavailable; starting a first timer for the task that measures the time the task is blocked; determining that the resource is available; resuming processing the task; stopping the first timer for the task; and storing the time interval that the task was blocked. The method may determine that a task is blocked when the task requires access to a resource, and a semaphore indicates that the resource is in use. The method may also include measuring the utilization time of each task, an idle time for each processor, and an interrupt request time for each processor. Various exemplary embodiments relate the above method encoded as instructions on a machine-readable medium.