Task scheduling method, device and system

The invention discloses a method, a system and a device. The method comprises the following steps: acquiring an equipment load point number required by a to-be-processed task; acquiring a current total load point number of each piece of processing equipment; allocating the to-be-processed task to the processing equipment with the minimum current total load point number. According to the method, the most appropriate processing machine allocating scheme can be obtained by calculating a format processing load and a duration processing load of each video processing task on the basis of a transcoding and load balance processing method for videos with multiple video formats and different video durations, so that the utilization efficiency of a processor cluster is improved, and the processing speed of tasks such as video transcoding is increased. The invention further provides a task scheduling device and a task scheduling system.