commands equal to the value of compace 50 the switch 130 responds to the processor 112 request indicating whether it has the resources available to process the request or whether the request should be retried evaluation circuitry 140 on the processor 112 evaluates each response if the response is that the request should be retried then the evaluation circuitry 140 sends a message to the register 152 storing the compace 50 value to increment the number stored in the register 152 by a number equal to the value at which compace 50 was originally set for example if compace 50 is originally set to four the number of bus clocks between commands is four after one retry response the register 152 will be instructed by the evaluation circuitry 140 to increase by one compace 50 and there will be 8 bus clocks between each command each sequential retry response will add one additional compace 50 delay up to a maximum of 256 bus clocks to the register 152 until the switch 130 responds to the evaluation circuitry 140 indicating it has resources available to process the request by increasing the number of bus clocks between commands the system 100 will get additional time to process requests or load data when the switch 130 responds to the evaluation.