文章基本信息
- 标题：Selective Cache Ways: On-Demand Cache Resource Allocation
- 本地全文：下载
- 作者：David H. Albonesi
- 期刊名称：The Journal of Instruction-Level Parallelism
- 电子版ISSN：1942-9525
- 出版年度：2000
- 卷号：2
- 出版社：International Symposium on Microarchitecture
- 摘要：IncreasinglevelsofmicroprocessorpowerdissipationcallfornewapproachesatthearchitecturallevelthatsaveenergybybettermatchingofonchipresourcestoapplicationrequirementsSelectivecachewaysprovidestheabilitytodisableasubsetofthewaysinasetassociativecacheduringperiodsofmodestcacheactivitywhilethefullcachemayremainoperationalformorecacheintensiveperiodsBecausethisapproachleveragesthesubarraypartitioningthatisalreadypresentforperformancereasonsonlyminorchangestoaconventionalcachearerequiredandthereforefullspeedcacheoperationcanbemaintainedFurthermorethetradeobetweenperformanceandenergyisexibleandcanbedynamicallytailoredtomeetchangingapplicationandmachineenvironmentalconditionsWeshowthattradingoasmallperformancedegradationforenergysavingscanproduceasignicantreductionincacheenergydissipationusingthisapproach
