Using a second content-addressable memory to manage memory burst accesses in memory sub-systems

A system, comprising:

• a memory component;
• and
• a processing device operatively coupled to the memory device, the processing device to:
• receive a request from a host system to access a first data at a first address;
• determine that a first tag associated with the first address is not found in either a first plurality of entries in a first content-addressable memory (CAM) or in a second plurality of entries in a second CAM, wherein the first CAM and the second CAM to store a plurality of tags, the plurality of tags indicating that associated data is stored in a cache;
• responsive to determining that the first tag is not found in either the first plurality of entries in the first CAM or in the second plurality of entries in the second CAM indicating that the first data is not stored in the cache, select a particular entry of the first plurality of entries in the first CAM, wherein the particular entry comprises a second tag associated with a second address, and wherein second data associated with the second address is stored in the cache;
• determine whether the particular entry satisfies a condition indicating that content in the particular entry is to be stored in the second CAM and that the second data is to remain in the cache, wherein the particular entry satisfies the condition when a number of times that the particular entry has been accessed within a time period is greater than a threshold number of accesses and an amount of time since the particular entry was last accessed is less than a threshold time;
• and
• responsive to determining that the particular entry satisfies the condition, (i) selecting another entry, of the second plurality of entries in the second CAM, that includes invalid data, (ii) store the content of the particular entry of the first plurality of entries in the first CAM in the another entry of the second plurality of entries in the second CAM to maintain the second data in the cache, and (iii) replacing the content of the particular entry in the first CAM with content associated with the first address of the first data to add the first data to the cache.

A non-transitory computer-readable storage medium storing instructions which, when executed by a processing device, cause the processing device to perform operations comprising:

• receiving a request from a host system to access a first data at a first address;
• determining that a first tag associated with the first address is not found in either a first plurality of entries in a first content-addressable memory (CAM) or in a second plurality of entries in a second CAM, wherein the first CAM and the second CAM to store a plurality of tags, the plurality of tags indicating that associated data is stored in a cache;
• responsive to determining that the first tag is not found in either the first plurality of entries in the first CAM or in the second plurality of entries in the second CAM indicating that the first data is not stored in the cache, selecting a particular entry of the first plurality of entries in the first CAM, wherein the particular entry comprises a second tag associated with a second address, and wherein second data associated with the second address is stored in the cache;
• determining whether the particular entry satisfies a condition indicating that content in the particular entry is to be stored in the second CAM and that the second data is to remain in the cache, wherein the particular entry satisfies the condition when a number of times that the particular entry has been accessed within a time period is greater than a threshold number of accesses and an amount of time since the particular entry was last accessed is less than a threshold time;
• and
• responsive to determining that the particular entry satisfies the condition, (i) selecting another entry, of the second plurality of entries in the second CAM, that includes invalid data, (ii) storing the content of the particular entry of the first plurality of entries in the first CAM to the another entry of the second plurality of entries in the second CAM to maintain the second data in the cache, and (iii) replacing the content of the particular entry in the first CAM with content associated with the first address of the first data to add the first data to the cache.