Application input-output workload prioritization

A method comprising:

• controlling, in a multipath input-output driver of a host device, delivery of input-output operations from a host device to a storage system over selected ones of a plurality of paths through a network, the input-output operations being generated by a plurality of applications of the host device and the multipath input-output driver having a plurality of dispatch resources;
• wherein the host device is further configured to:
• establish a plurality of application buckets for respective different application priority levels;
• allocate one or more dispatch resources to one or more of the plurality of applications depending upon the respective different application priority levels;
• assign different ones of the applications of the host device to different ones of the application buckets;
• and for a given one of the input-output operations:
• identify its corresponding one of the application buckets;
• and utilize one or more of the allocated dispatch resources of the corresponding application bucket to control delivery of the given input-output operation to the storage system.

A computer program product comprising a non-transitory processor-readable storage medium having stored therein program code of one or more software programs, wherein the program code, when executed by a host device comprising a multipath input-output driver, the host device being configured to communicate over a network with a storage system, the input-output operations being generated by a plurality of applications of the host device and the multipath input-output driver having a plurality of dispatch resources, wherein the host device is further configured to:

• establish a plurality of application buckets for respective different application priority levels;
• allocate one or more dispatch resources to one or more of the plurality of applications depending upon the respective different application priority levels;
• assign different ones of the applications of the host device to different ones of the application buckets;
• and for a given one of the input-output operations:
• identify its corresponding one of the application buckets;
• and utilize one or more of the allocated dispatch resources of the corresponding application bucket to control delivery of the given input-output operation to the storage system.