A caching system including a first sub-cache and a second sub-cache in parallel with the first sub-cache, wherein the second sub-cache includes: line type bits configured to store an indication that a corresponding cache line of the second sub-cache is configured to store write-miss data, and an eviction controller configured to evict a cache line of the second sub-cache storing write-miss data based on an indication that the cache line has been fully written.

Devices and techniques for asynchronous pipeline merging are described herein. An apparatus, includes a memory controller, which includes merge circuitry; where the memory controller chiplet is configured to perform operations including those to: perform a bitwise logical operation on a first logging bit vector and a second logging bit vector to obtain a result vector, wherein the first logging bit vector is associated with a first pipeline and the second logging bit vector is associated with a second pipeline, and wherein bits in respective index positions of the first and second logging bit vectors represent transactions; select a completed transaction from the result vector using a round-robin technique; and forward the completed transaction from the set of completed transactions to an output pipeline.

Devices and techniques for asynchronous pipeline merging are described herein. An apparatus, includes a memory controller, which includes merge circuitry; where the memory controller chiplet is configured to perform operations including those to: perform a bitwise logical operation on a first logging bit vector and a second logging bit vector to obtain a result vector, wherein the first logging bit vector is associated with a first pipeline and the second logging bit vector is associated with a second pipeline, and wherein bits in respective index positions of the first and second logging bit vectors represent transactions; select a completed transaction from the result vector using a round-robin technique; and forward the completed transaction from the set of completed transactions to an output pipeline.

A hybrid memory includes cache of relatively fast and durable dynamic, random-access memory (DRAM) in service of a larger amount of relatively slow and wear-sensitive flash memory. An address buffer on the module maintains a static, random-access memory (SRAM) cache of addresses for data cached in DRAM.

A method and system for exchanging network packets in a memory system is provided. A size of each network packet to be transmitted is determined. Each network packets is segregated into one of plural queues based on the size of the network packet. Each network packet is transmitted over a shared memory, according to the queue in which the network packet is segregated.

A method and system for exchanging network packets in a memory system is provided. A size of each network packet to be transmitted is determined. Each network packets is segregated into one of plural queues based on the size of the network packet. Each network packet is transmitted over a shared memory, according to the queue in which the network packet is segregated.

Embodiments are provided for an integrated semi-inclusive hierarchical metadata predictor. A hit in a second-level structure is determined, the hit being associated with a line of metadata in the second-level structure. Responsive to determining that a victim line of metadata in a first-level structure meets at least one condition, the victim line of metadata is stored in the second-level structure. The line of metadata from the second-level structure is stored in a first-level structure to be utilized to facilitate performance of a processor, the line of metadata from the second-level structure including entries for a plurality of instructions.

Embodiments are provided for an integrated semi-inclusive hierarchical metadata predictor. A hit in a second-level structure is determined, the hit being associated with a line of metadata in the second-level structure. Responsive to determining that a victim line of metadata in a first-level structure meets at least one condition, the victim line of metadata is stored in the second-level structure. The line of metadata from the second-level structure is stored in a first-level structure to be utilized to facilitate performance of a processor, the line of metadata from the second-level structure including entries for a plurality of instructions.

A data processing system includes a plurality of snoopers, a processing unit including master, and a system fabric communicatively coupling the master and the plurality of snoopers. The master sets a retry operating mode for an interconnect operation in one of alternative first and second operating modes. The first operating mode is associated with a first type of snooper, and the second operating mode is associated with a different second type of snooper. The master issues a memory access request of the interconnect operation on the system fabric of the data processing system. Based on receipt of a combined response representing a systemwide coherence response to the request, the master delays an interval having a duration dependent on the retry operating mode and thereafter reissues the memory access request on the system fabric.

A caching system including a first sub-cache and a second sub-cache in parallel with the first sub-cache, wherein the second sub-cache includes a set of cache lines, line type bits configured to store an indication that a corresponding cache line of the set of cache lines is configured to store write-miss data, and an eviction controller configured to flush stored write-miss data based on the line type bits.