Input/output queue hinting for resource utilization
View Patent ↗Described are techniques including a method comprising detecting a deallocated Input/Output (I/O) queue associated with a first entity in a Non-Volatile Memory Express (NVMe) storage system. The method further comprises broadcasting an Asynchronous Event Request (AER) message indicating I/O queue availability based on the deallocated I/O queue. The method further comprises allocating, in response to the AER message, a new I/O queue to a second entity in the NVMe storage system.
1. A system comprising:
a first host of a plurality of hosts communicatively coupled to one or more processing cores of a non-volatile memory express (NVMe) storage system by one or more Input/Output (I/O) queues;
a NVMe queue manager configured to detect freed memory resources associated with a deallocated I/O queue of the one or more I/O queues;
a notification engine configured to:
verify that a second host of the plurality of hosts has a number of I/O queues below a maximum number of I/O queues permitted by the NVMe storage system; and
transmit a notification indicating the freed memory resources to the second host; and
wherein the second host is configured to establish a newly allocated I/O queue with the NVMe storage system using the freed memory resources and in response to receiving the notification.
2. The system of claim 1 , wherein the notification comprises an Asynchronous Event Request (AER) notification.
3. The system of claim 1 , wherein the system further comprises an I/O queue (IOQ) type manager configured to store an I/O queue type of the newly allocated I/O queue.