Cache management method and apparatus, and computer-readable storage medium

A device, used in a computing cluster comprising at least one compute device, wherein the computing cluster runs a first process and a second process that are of a first user, and a cache service process, the computing cluster comprises a shared memory pool, and the device comprises at least one processor coupled to at least one non-transitory computer-readable storage medium storing instructions that, when executed by the at least one processor, cause the device to:

• obtain, through the first process, a first input/output (I/O) request corresponding to the first process;
• send, through the first process, a first cache application instruction to the cache service process when a first memory space of the first process is insufficient to store data corresponding to the first I/O request, wherein the first memory space is a section of space in the shared memory pool and is shared by the first process and the second process;
• allocate, through the cache service process, a second memory space in the shared memory pool to the first process according to the first cache application instruction;
• obtain, through the second process, a second I/O request corresponding to the second process;
• send, through the second process, a second cache application instruction to the cache service process when the first memory space corresponding to the second process is insufficient to store data corresponding to the second I/O request;
• and
• allocate, through the cache service process, the second memory space to the second process according to the second cache application instruction.

A non-transitory computer storage medium storing a computer program for inter-process communication that, when executed by at least one processor, causes the at least one processor to:

• obtain, through a first process of a first user, a first input/output (I/O) request corresponding to the first process;
• send, through the first process, a first cache application instruction to a cache service process when a first memory space of the first process is insufficient to store data corresponding to the first I/O request, wherein the first memory space is a section of space in a shared memory pool and is shared by the first process and a second process;
• allocate, through the cache service process, a second memory space in the shared memory pool to the first process according to the first cache application instruction;
• obtain, through a second process of the first user, a second I/O request corresponding to the second process;
• send, through the second process, a second cache application instruction to the cache service process when the first memory space corresponding to the second process is insufficient to store data corresponding to the second I/O request;
• and
• allocate, through the cache service process, the second memory space to the second process according to the second cache application instruction;
• and wherein the first process, the second process, and the cache service process runs in a computing cluster, the computing cluster comprises a shared memory pool.