Method and apparatus to perform dynamically controlled interrupt coalescing for a solid state drive

A method comprising:

• managing, by host interface circuitry, requests received from a host to access a non-volatile memory, the non-volatile memory to store data and the host interface circuitry including a coalesce controller and a Quality of Service (QoS) controller;
• monitoring, by the coalesce controller, completion of received requests to trigger an interrupt to the host;
• and
• monitoring, by the Quality of Service (QoS) controller, quality of service metrics;
• comparing, by the Quality of Service (QoS) controller, the quality of services metrics with a QoS service level objective (SLO) to enable trigger of the interrupt to the host;
• and
• dynamically selecting, by the Quality of Service (QoS) controller, a number of completions of received requests to trigger the interrupt.

A system comprising:

• a processor;
• and
• a solid state drive comprising:
• a non-volatile memory to store data;
• and
• host interface circuitry to manage requests received from a host to access the non-volatile memory, the host interface circuitry including:
• a coalesce controller to monitor completion of received requests and to trigger an interrupt to the host;
• and
• a Quality of Service (QoS) controller to monitor quality of service metrics and to compare the monitored quality of services metrics with a QoS service level objective (SLO) to enable trigger of the interrupt to the host and to dynamically select a number of completions of received requests to trigger the interrupt.