A DEVICE AND A METHOD FOR POWER SCHEDULING OF DATA REQUESTS

摘要

A device and a method for power scheduling of data requests (205, 215) are disclosed. The data requests comprise auxiliary requests (215) and streaming requests (205). Power is saved by setting a storage means (170) to a non-operating mode when no data requests are pending and to an operating mode when at least one data request is to be executed. The auxiliary requests (215) each have a priority (315) that is used to assign a predetermined timeout value (515). The predetermined timeout value indicates a maximum time for which each auxiliary request may be postponed. If the predetermined timeout value is exceeded the auxiliary request will marked as to be executed and the storage means (170) will transition to the operating mode. The predicted spin up time for the next streaming request may also be compared to the predetermined timeout value and the auxiliary request may be executed immediately.