Method and apparatus for write destage

A system, comprising:

• a memory;
• and
• at least one processor that is operatively coupled to the memory, the at least one processor being configured to perform the operations of:
• selecting one or more front-end (FE) tracks that are arranged to cache data associated with one or more write requests;
• selecting a given one of a plurality of buckets in an aging queue as a recipient for the FE tracks, the given bucket being selected based on one or more characteristics of the FE tracks;
• placing the FE tracks in the given bucket;
• updating an aging time for the given bucket;
• waiting until an age of the FE tracks is greater than the aging time of the aging queue, and placing the one or more FE tracks in a write commit queue after the age of the FE tracks has become greater than the aging time of the aging queue;
• and
• completing the write requests after one or more FE tracks have been placed in the write commit queue.

A non-transitory computer readable medium storing one or more processor-executable instructions, which, when executed by at least one processor, cause the at least one processor to perform the operations of:

• selecting one or more front-end (FE) tracks that are arranged to cache data associated with one or more write requests;
• selecting a given one of a plurality of buckets in an aging queue as a recipient for the FE tracks, the given bucket being selected based on one or more characteristics of the FE tracks;
• placing the FE tracks in the given bucket;
• updating an aging time for the given bucket;
• waiting until an age of the FE tracks is greater than the aging time of the aging queue, and placing the one or more FE tracks in a write commit queue after the age of the FE tracks has become greater than the aging time of the aging queue;
• and
• completing the write requests after one or more FE tracks have been placed in the write commit queue.