Memory access system and method

A memory access system, comprising:

• a memory, a controller, and a redundancy elimination unit, wherein
• the memory comprises M×N storage blocks, wherein M rows of the storage blocks form M storage sets, N columns of the storage blocks form N storage ways, each storage set is provided with a set identifier, and M or N is a positive integer greater than or equal to 2;
• the redundancy elimination unit is configured to record M record items, wherein each record item corresponds to one of the M storage sets, and each record item is used to store a tag of a stored data block in one of the M storage sets;
• and
• the controller is configured to:
• receive a data read request, determine a read data block and a target storage set of the read data block, query the redundancy elimination unit according to a set identifier of the target storage set of the read data block;
• match a tag of the read data block with a tag of a stored data block in a record item corresponding to the target storage set of the read data block;
• and
• in response to determining that no match is found, return information indicating that the read data block is not hit.

A memory access method, applied to a memory access system, wherein the memory access system comprises a memory and a redundancy elimination unit, the memory comprises M×N storage blocks, M rows of the storage blocks form M storage sets, N columns of the storage blocks form N storage ways, each storage set is provided with a set identifier, and M or N is a positive integer greater than or equal to 2, and wherein the redundancy elimination unit records M record items, each record item corresponds to one of the M storage sets, and each record item is used to store a tag of a stored data block in one of the M storage sets;

• the method comprising:
• receiving a data read request;
• determining a read data block associated with the data read request and a target storage set of the read data block;
• and
• querying the redundancy elimination unit according to a set identifier of the target storage set of the read data block;
• matching a tag of the read data block with a tag of a stored data block in a record item recorded in the redundancy elimination unit and corresponding to the target storage set of the read data block;
• and
• in response to no match being found, returning information indicating that the read data block is not hit.

A computer device, comprising:

• a processor, a first memory, a bus, a communications interface, and a second memory, wherein the second memory comprises M×N storage blocks, M rows of the storage blocks form M storage sets, N columns of the storage blocks form N storage ways, each storage set is provided with a set identifier, and M or N is a positive integer greater than or equal to 2;
• the first memory is configured to store a computer-executable instruction;
• the processor is connected to the first memory by using the bus;
• and wherein the computer-executable instruction instruct the computer device to perform the following operations when executed:
• receiving a data read request;
• and
• determining a read data block and a target storage set of the read data block;
• querying a redundancy elimination unit according to a set identifier of the target storage set of the read data block, wherein the redundancy elimination unit records M record items, each record item corresponds to one of the M storage sets, and each record item is used to store a tag of a stored data block in one of the M storage sets;
• matching a tag of the read data block with a tag of a stored data block in a record item recorded in the redundancy elimination unit and corresponding to the target storage set of the read data block;
• and
• in response to no match being found, returning information indicating that the read data block is not hit.