A throttling value is determined according to one of multiple throttling modes. A threshold value is determined. The throttling value is compared to the threshold value. A request mask is generated based on a result of the comparison of the throttling value to the threshold value. In response to detecting the request mask, an arbitration request is masked using the request mask prior to passing the arbitration request to an arbitration component that manages access of multiple client requestors to a buffer. The arbitration request is generated in response to receiving an access request for the buffer from a client requestor of the multiple client requestors.