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- Wait_state abstract "A wait state is a delay experienced by a computer processor when accessing external memory or another device that is slow to respond.As of late 2011, computer microprocessors run at very high speeds, while memory technology does not seem to be able to catch up: typical PC processors like the Intel Core 2 and the AMD Athlon 64 X2 run with a clock of several GHz, which means that one clock cycle is less than 1 nanosecond (typically about 0.3 ns to 0.5 ns on modern desktop CPUs), while main memory has a latency of about 15–30 ns. Some second-level CPU caches run slower than the processor core.When the processor needs to access external memory, it starts placing the address of the requested information on the address bus. It then must wait for the answer, that may come back tens if not hundreds of cycles later. Each of the cycles spent waiting is called a wait state.Wait states are a pure waste for a processor's performance. Modern designs try to eliminate or hide them using a variety of techniques: CPU caches, instruction pipelines, instruction prefetch, branch prediction, simultaneous multithreading and others. No single technique is 100% successful, but together they can significantly reduce the problem.".
- Wait_state wikiPageID "335611".
- Wait_state wikiPageRevisionID "567406983".
- Wait_state hasPhotoCollection Wait_state.
- Wait_state subject Category:Central_processing_unit.
- Wait_state comment "A wait state is a delay experienced by a computer processor when accessing external memory or another device that is slow to respond.As of late 2011, computer microprocessors run at very high speeds, while memory technology does not seem to be able to catch up: typical PC processors like the Intel Core 2 and the AMD Athlon 64 X2 run with a clock of several GHz, which means that one clock cycle is less than 1 nanosecond (typically about 0.3 ns to 0.5 ns on modern desktop CPUs), while main memory has a latency of about 15–30 ns. ".
- Wait_state label "Wait state".
- Wait_state label "Wait state".
- Wait_state label "Wait state".
- Wait_state label "Waitstate".
- Wait_state sameAs Waitstate.
- Wait_state sameAs 대기_상태.
- Wait_state sameAs Wait_state.
- Wait_state sameAs Wait_state.
- Wait_state sameAs m.01xg5z.
- Wait_state sameAs Q1068739.
- Wait_state sameAs Q1068739.
- Wait_state wasDerivedFrom Wait_state?oldid=567406983.
- Wait_state isPrimaryTopicOf Wait_state.