Method for managing cache data, medium, and electronic device

A non-transitory computer-readable medium, wherein a computer program is stored on the non-transitory computer-readable storage medium, and the computer program, upon being executed by a processing device, implements:

• acquiring a remaining available space of a solid-state disk for storing cache data;
• upon the remaining available space being less than a first space threshold, determining a first fragment group in the solid-state disk that has the greatest garbage proportion, wherein each fragment group comprises a first number of fragments, and each fragment corresponds to a second number of contiguous logical address spaces in the solid-state disk;
• and
• purging the cache data in the first fragment of the first fragment group that has the greatest garbage proportion.

An electronic device, comprising:

• a memory, storing a computer program;
• and
• a processor, configured to execute the computer program in the memory to implement:
• acquiring a remaining available space of a solid-state disk for storing cache data;
• upon the remaining available space being less than a first space threshold, determining a first fragment group in the solid-state disk that has the greatest garbage proportion, wherein each fragment group comprises a first number of fragments, and each fragment corresponds to a second number of contiguous logical address spaces in the solid-state disk;
• and
• purging the cache data in the first fragment of the first fragment group that has the greatest garbage proportion.