Methods, apparatuses, and computer program products for measuring throughput as a measure of performance and/or quality of service are provided. One method comprises, over an observation period for at least one of an uplink direction and a downlink direction, measuring an amount of padding bits in each protocol data unit (PDU) that is successfully transmitted in the said direction and that carries data relevant to a given throughput measure. The method may also comprise transforming the measured amounts of padding bits to the time domain and summing the transformed amounts of padding in the time domain. The method may also comprise utilizing the summed amount of padding in the time domain to account for small data transmissions in a calculation for the given throughput measure.