US Patent 10135750 Satisfaction-ratio based server congestion control mechanism

Exemplary methods include performed by a storage system client include sending a service request to a storage system server. The methods further include in response to receiving a response from the storage system server requesting the storage system client to perform a backoff dynamically calculating a satisfaction ratio (s-ratio), determining a backoff time based on the s-ratio, and waiting for the backoff time to expire. In one embodiment, the methods further include in response to determining the backoff time has expired, resending the service request to the storage system server.