计算机分级存储的特,计算机系统结构分级存储器体系.ppt
文档介绍：
puterArchitecture计算机系统结构Ideallyonewoulddesireanindefinitelylargememorycapacitysuchthatanyparticular…wordwouldbeimmediatelyavailable…Weare…essible.A.W.Burks,……MemoryHierarchyRegisters MemoryStack DiskCache OtherStoragesMemoryHierarchyWefocusonthememoryhierarchyfordesktopRegistersCacheMainMemoryDiskstorageBecauseoflocalityandthehigherspeedofsmallermemories,amemoryhierarchycanimproveperformance.MemoryHierarchyLevel1234NameRegistersCacheMainmemorydiskstorageTypicalsize<1KB<16MB<16GB>100GBImplementationTechnologycustommemorywithmultipleportsCMOSon-chiporoff-esstime(ns)0.25-0.50.5-2580-2505,000,000Bandwidth(MB/sec)20,000-100,0005000-10,0001000-500020-pilerhardwareoperatingsystemoperatingsystem/operatorBackedbycachemainmemorydiskCDorTapeSmall>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>largeFast<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
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