Performance and power management for rotating data storage device

摘要

A data storage device may generally be directed to a buffer that stores a plurality of command requests pending for a data storage medium and a processor that is configured to skip a first command request and execute a second command request in response to the second command request having an access latency within a first predetermined performance impact range and a power consumption within a second predetermined power savings range compared to the first command request.

主权项

1. An apparatus comprising:
a buffer storing a plurality of command requests pending for a data storage medium; and a processor configured to skip a first command request and execute a second command request in response to a prediction of a model generator that the second command request will have an access latency within a predetermined performance impact range and a power consumption within a predetermined power savings range compared to the first command request, the model generator configured to predict access latency and power consumption values based on prior logged command request execution.