Memory system using message monitoring and first and second namespaces

摘要

According to one embodiment, a memory system includes a first memory including a message queue having first to n^th addresses (n≥2, n is natural number), a first pointer showing one of the first to n^th addresses, and a second pointer showing one of the first to n^th addresses, a monitor unit which detects whether the first and second pointers show the first address, and a processing unit which changes an address shown by the first pointer from the first address to an i^th address (n≥i≥2, i is natural number) when the first and second pointers show the first address. An address shown by the second pointer is incremented from the first address to a (j+1)^th address (j≥1, j is natural number) when first to j^th messages are queued in the first to j^th addresses.