Petaio Inc.

JinKi Han

Jongman Yoon

A peripheral device implements a plurality of queue sets each including a submission queue and a completion queue. Changes to the queues are monitored and arbitration parameters are adjusted, the arbitration parameters defining how submission queues are selected for retrieval of a command. An arbitration burst for a submission queue may be increased in response to tail movement for the submission queue being larger than for another submission queue. Priorities used for weighted round robin arbitration may also be adjusted based on tail movement. Arbitration burst quantities and priorities of groups of queues may also be adjusted. Head movement of the completion queues is monitored and may be used to lower priority, enable interrupt coalescing, or pause command retrieval where head movement does not meet a threshold condition.

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San Jose, CA, United States of America

JinKi Han