欢迎来到天天文库
浏览记录
ID:39130640
大小:3.48 MB
页数:82页
时间:2019-06-25
《高性能低功耗嵌入式内存管理单元设计分析》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、浙江大学硕士学位论文AbstractWiththedevelopmentofcomplicatedembeddedapplications,memorymanagementhasbecomethefocusandthedifficultpartofHW-SWdesigninhigh-endembeddedprocessors.Virtualmemorytechniqueisaneffectivememorymanagementmethod,whichistransparenttosoftwarebasedonoperatingsystem.Thiscansimplify
2、thememorymanagementmodeandenhancetheportabilityofapplicationsoftware.Meanwhile,memorymanagementunit(MMU),themajorconcemofpowerconsumptionandareacostofembeddedprocessors,isimplementedinhardwaretorealizevirtualmemorytechnique.InthisthesisweproposesomekeytechniquesofembeddedTLBforhighperfor
3、manceandlowpowerimplementationofembeddedMMU.Theoriginalcontributionsofthisthesisareasfollows:1.ATLBdesignmethodbasedoncacheresourcereusing.ThisthesisanalyzedthesimilaritybetweenTLBandCacheentryinstoragestructureandaccessingbehavior,andthenproposedanewTLBdesignmethodbasedonreusingcachehar
4、dwareresourceforlowerpowerconsumptionandsmallerareacostinembeddedprocessor.Thismethodsetupcacheaddressmappingtable,whichrecordedthelocationofTLBentryinCache,todecreaseTLBaccesseswithlessdynamicpowerconsumption.2.Aninnovationofmulti-processTLBentrysharingonecachelinewindow.Thismethodparti
5、tionscachelineintodifferentprocesswindowstopreventfrequencyreplacementofTLBentryduringprocessswitch.Dynamical浙江人学硕士学位论文AbstractTLBentryextensionbasedoncachearchitectureenlargedthemappingrangeofphysicaladdressforhigherTLBhitrateandprovidedasolutiontoTLBentryrestrictionintraditionalTLBdesi
6、gn.MoreoveLanentrylockingmethodofTLBwasalsoproposedtobalancetheresourcehazardinmaximumdegreebetweenTLBentryandinstruction/data.3.Two-levellow-powerTLBimplementationwithmultipleTLBpagesizessupported.Thismethodutilizedtwo-levelTLBarchitecturetosolvecacheaccesshazardbetweenTLBandinstruction
7、/data,withgreatdynamicpowersavedwhenaccessingin-cacheTLB.TwopagesizescouldbedynamicallysupportedbyextendingthefirstlevelTLBentryforhigherTLBhitrate.ComparedwithtraditionalTLBdesign,experimentsshowthattheproposedmethodreducesthepowerconsumptionandareacostofembeddedprocesso
此文档下载收益归作者所有