Flushing data from caches

Data storage equipment, comprising:

• memory;
• and
• control circuitry coupled with the memory, the memory storing instructions which, when carried out by the control circuitry, cause the control circuitry to perform a method of:
• populating a first group of page-descriptor containers with page descriptors identifying data pages to flush from a cache;
• after populating the first group of page-descriptor containers, populating a second group of page-descriptor containers with additional page descriptors in place of populating the first group of page-descriptor containers;
• and
• directing a flushing service to access the first group of page-descriptor containers to obtain the page descriptors identifying the data pages when flushing the data pages from the cache.

A computer program product having a non-transitory computer readable medium which stores a set of instructions for flushing data from a cache, the set of instructions, when carried out by computerized circuitry, causing the computerized circuitry to perform a method of:

• populating a first group of page-descriptor containers with page descriptors identifying data pages to flush from a cache;
• after populating the first group of page-descriptor containers, populating a second group of page-descriptor containers with additional page descriptors in place of populating the first group of page-descriptor containers;
• and
• directing a flushing service to access the first group of page-descriptor containers to obtain the page descriptors identifying the data pages when flushing the data pages from the cache.