Systems, apparatuses and methods of adaptively controlling a cache operating voltage are provided that comprise receiving indications of a plurality of cache usage amounts. Each cache usage amount corresponds to an amount of data to be accessed in a cache by one of a plurality of portions of a data processing application. The plurality of cache usage amounts are determining based on the received indications of the plurality of cache usage amounts. A voltage level applied to the cache is adaptively controlled based on one or more of the plurality of determined cache usage amounts. Memory access to the cache is controlled to be directed to a non-failing portion of the cache at the applied voltage level.

The present disclosure includes apparatuses and methods for a cache architecture. An example apparatus that includes a cache architecture according to the present disclosure can include an array of memory cells configured to store multiple cache entries per page of memory cells; and sense circuitry configured to determine whether cache data corresponding to a request from a cache controller is located at a location in the array corresponding to the request, and return a response to the cache controller indicating whether cache data is located at the location in the array corresponding to the request.

A method of caching mapping table for use in a flash memory device having a flash memory controller and a flash memory is provided. The method includes: in response to a host read command, determining whether a group of a logical-to-physical (L2P) required by handling the host read command has been loaded to a DRAM of the flash memory controller; if the required group of the L2P mapping table has not been loaded to the DRAM, loading the required group of the L2P mapping table from the flash memory to a SRAM of the flash memory controller; directly accessing the SRAM to obtain an L2P address associated with the host read command from the required group of the L2P mapping table; and performing a read operation on the flash memory in response to the host read command according to the obtained L2P address.

An example memory sub-system includes: a plurality of bank groups, wherein each bank group comprises a plurality of memory banks; a plurality of row buffers, wherein two or more row buffers of the plurality of row buffers are associated with each memory bank; a cache comprising a plurality of cache lines; a processing logic communicatively coupled to the plurality of bank groups and the plurality of row buffers, the processing logic to perform operations comprising: receiving an activate command specifying a row of a memory bank of the plurality of memory banks; fetching data from the specified row to a row buffer of the plurality of row buffers; and copying the data to a cache line of the plurality of cache lines.

A processor comprising a first storage managed as a circular buffer to store a plurality of data structures. Each data structure comprises: an identifier, a size indicator and first data associated with instructions for execution of a task. The processor is configured for searching for a data structure in the first storage. A data structure subsequent to the tail data structure can be located using a storage address in the first storage of a tail data structure and the size indicator of all data structures preceding the second data structure among the plurality of data structures. When a data structure is found, the task may be executed based at least in part on the first data of the found data structure.

The present disclosure includes apparatuses and methods for a cache architecture. An example apparatus that includes a cache architecture according to the present disclosure can include an array of memory cells configured to store multiple cache entries per page of memory cells; and sense circuitry configured to determine whether cache data corresponding to a request from a cache controller is located at a location in the array corresponding to the request, and return a response to the cache controller indicating whether cache data is located at the location in the array corresponding to the request.

A system and method for mitigating overhead for accessing metadata for a cache in a hybrid memory module are disclosed. The method includes: providing a hybrid memory module including a DRAM cache, a flash memory, and an SRAM for storing a metadata cache; obtaining a host address including a DRAM cache tag and a DRAM cache index; and obtaining a metadata address from the DRAM cache index, wherein the metadata address includes a metadata cache tag and a metadata cache index. The method further includes determining a metadata cache hit based on a presence of a matching metadata cache entry in the metadata cache stored in the SRAM; in a case of a metadata cache hit, obtaining a cached copy of data included in the DRAM cache and skipping access to metadata included in the DRAM cache; and returning the data obtained from the DRAM cache to a host computer. The SRAM may further store a Bloom filter, and a potential DRAM cache hit may be determined based on a result of a Bloom filter test. A cache controller of the hybrid memory module may disable the Bloom filter when a metadata cache hit ratio is higher than a threshold.

Methods, systems, and devices related to sense amplifiers of a memory device serving as a Static Random Access Memory (SRAM) cache. For example, a memory array can be coupled to sense amplifiers. In a first mode, the sense amplifiers can be electrically disconnect from digit lines of the memory array. In the first mode, data and metadata of a cache line can be stored in the sense amplifiers when electrically disconnected from the number of digit lines. In the first mode, a portion of the data can be communicated, based on the metadata, from the sense amplifiers to the processing device. In a second mode, the sense amplifiers can connect to the memory array and sense data from the memory array.

Systems, apparatuses and methods may provide for technology to automatically identify a plurality of non-volatile memory locations associated with a file in response to a close operation with respect to the file and automatically conduct a prefetch from one or more of the plurality of non-volatile memory locations that have been most recently accessed and do not reference cached file segments. The prefetch may be conducted in response to an open operation with respect to the file and on a per-file segment basis.

Devices and systems having memory-side adaptive prefetch decision-making, including associated methods, are disclosed and described. Adaptive information can be provided to memory-side controller and prefetch components that allow such memory-side components to prefetch data in a manner that is adaptive with respect to a particular read memory request or to a thread performing read memory requests.