Memory management method, memory storage device, and memory control circuit unit

A memory storage device, comprising:

• a connection interface unit, used to couple to a host system;
• a rewritable non-volatile memory module;
• and
• a memory control circuit unit, coupled to the connection interface unit and the rewritable non-volatile memory module, wherein
• the memory control circuit unit is used to:
• obtain a first weight value corresponding to a first command in a command queue, wherein the command queue is used to store at least one command to be executed;
• obtain a second weight value corresponding to at least one second command being executed;
• in response to a sum of the first weight value and the second weight value being greater than a base value, delay an execution of the first command;
• after delaying the execution of the first command, obtain a third weight value corresponding to a third command in the command queue, wherein the third command is used to execute a second operation on a second memory module in the idle state among a plurality of memory modules;
• and
• in response to a sum of the third weight value and the second weight value being not greater than the base value, execute the third command
• wherein the rewritable non-volatile memory module comprises the plurality of memory modules, and the first command is used to execute a first operation on a first memory module in an idle state among the memory modules.

A memory control circuit unit, used to control a rewritable non-volatile memory module, the memory control circuit unit comprising:

• a host interface, used to couple to a host system;
• a memory interface, used to couple to a rewritable non-volatile memory module;
• a buffer memory;
• and
• a memory management circuit, coupled to the host interface, the memory interface, and the buffer memory, wherein
• the memory management circuit is used to:
• obtain a first weight value corresponding to a first command in a command queue in the buffer memory, wherein the command queue is used to store at least one command to be executed;
• obtain a second weight value corresponding to at least one second command being executed;
• in response to a sum of the first weight value and the second weight value being greater than a base value, delay an execution of the first command;
• after delaying the execution of the first command, obtain a third weight value corresponding to a third command in the command queue, wherein the third command is used to execute a second operation on a second memory module in the idle state among a plurality of memory modules;
• and
• in response to a sum of the third weight value and the second weight value being not greater than the base value, execute the third command,
• wherein the rewritable non-volatile memory module comprises the plurality of memory modules, and the first command is used to execute a first operation on a first memory module in an idle state among the memory modules.