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memory latency

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  • Memory latency — In computing, memory latency is the time between initiating a request for a byte or word in memory until it is retrieved. If the data are not in the processor s cache, it takes longer to obtain them, as the processor will have to communicate with …   Wikipedia

  • Memory timings — (or RAM timings) refer collectively to a set of four numerical parameters called CL, tRCD, tRP, and tRAS, commonly represented as a series of four numbers separated with dashes, in that respective order (e.g. 5 5 5 15). However, it is not unusual …   Wikipedia

  • Latency (engineering) — Latency is a measure of time delay experienced in a system, the precise definition of which depends on the system and the time being measured. Latencies may have different meaning in different contexts. Contents 1 Communication latency 1.1 Packet …   Wikipedia

  • Memory controller — The memory controller is a digital circuit which manages the flow of data going to and from the main memory. It can be a separate chip or integrated into another chip, such as on the die of a microprocessor. This is also called a Memory Chip… …   Wikipedia

  • Memory divider — A memory divider is a ratio which is used to determine the operating clock frequency of computer memory in accordance with front side bus (FSB) frequency, if the memory system is dependent on FSB clock speed. Along with memory latency timings,… …   Wikipedia

  • Memory disambiguation — is a set of techniques employed by high performance out of order execution microprocessors that execute memory access instructions (loads and stores) out of program order. The mechanisms for performing memory disambiguation, implemented using… …   Wikipedia

  • Memory bandwidth — is the rate at which data can be read from or stored into a semiconductor memory by a processor. Memory bandwidth is usually expressed in units of bytes/second, though this can vary for systems with natural data sizes that are not a multiple of… …   Wikipedia

  • Memory hierarchy — Diagram of the computer memory hierarchy See also: Computer data storage The term memory hierarchy is used in the theory of computation when discussing performance issues in computer architectural design, algorithm predictions, and the lower… …   Wikipedia

  • Memory virtualization — In computer science, memory virtualization decouples volatile random access memory (RAM) resources from individual systems in the data center, and then aggregates those resources into a virtualized memory pool available to any computer in the… …   Wikipedia

  • Latency — Mit der Column Address Strobe Latency (kurz CL oder „CAS Latency“), auch Latenz Zeit genannt, wird die Verzögerung zwischen der Adressierung in einem DRAM Baustein und der Bereitstellung der an dieser Adresse gespeicherten Daten bezeichnet. Die… …   Deutsch Wikipedia

  • Memory bus — The memory bus is the computer bus which connects the main memory to the memory controller in computer systems. Originally, general purpose buses like VMEbus and the S 100 bus were used, but to reduce latency, modern memory buses are designed to… …   Wikipedia

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