Techniques perform operation control in a storage system. The techniques involve obtaining a performance parameter of the storage system. The performance parameter is associated with at least one of access response time and resource utilization of the storage system. The techniques further involve obtaining a target performance parameter. The target performance parameter indicates a desired value of the performance parameter. The techniques further involve: in response to the performance parameter exceeding a first threshold, determining a scheduling parameter based on the performance parameter and the target performance parameter. The scheduling parameter is used to control execution of background operations in the storage system. In accordance with at least some of the techniques, background operations in the storage system can be effectively controlled, so that the resource usage and input/output performance can be improved.