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1、PERFORMANCEANDRELIABILITYANALYSISOFCOMPUTERSYSTEMSAnExample-BasedApproachUsingtheSHARPESoftwarePackagePERFORMANCEANDRELIABILITYANALYSISOFCOMPUTERSYSTEMSAnExample-BasedApproachUsingtheSHARPESoftwarePackageRobinSAHNERUrbana,ILKishorS.TRIVEDIDukeUniversityDurham,N.C.Anton
2、ioPULIAFITOUniversityofCataniaCatania,ItalyKLUWERACADEMICPUBLISHERSBoston/London/DordrechtCONTENTSPartIAPPENDICES6ASHARPECOMMANDLINESYNTAX9BSHARPELANGUAGEDESCRIPTION11B.1Conventions11B.2BasicLanguageComponents11B.3Speci cationofExponentialPolynomialFunctions16B.4Speci
3、cationofModels18B.5AskingforResults31B.6Built-inFunctions35B.7ControllingtheAnalysisProcess40B.8ProgramConstants43B.9SummaryofTop-levelInputStatements43CUSINGSHARPEINTERACTIVELY45DALGORITHMCHOICESFORPHASE-TYPEMARKOVCHAINS51vPARTIAPPENDICES8ASHARPECOMMANDLINESYNTAXTheSH
4、ARPEprogramhastwomodesofoperation:itcanreadinputfromoneormore les(batchmode)orfromaterminal(interactivemode).Thelanguageusedininteractivemodeisasubsetofthebatch-modelanguage;someofthekeywordsarenotusedbecausethecontextofaninteractivesessionmakesthemunnecessary.Attheuse
5、r'soption,whenininteractivemodeSHARPEcancopytheuser'sinputintoa leinthesyntaxsuitableforbatch-modeoperation.TheSHARPEcommandlineforbatchmodeissharpe[-v][-nf][-p][-e<1j2>][-vo][-s] le[ le...]TheSHARPEcommandlineforinteractivemodeissharpe[-v][-nf][-p][-e<1
6、j2>][-vo][-s][-ddata le]Ifthereareno learguments,SHARPErunsininteractivemode.Ifthe-d
agispresent,SHARPErunsinteractivelyandsavestheuser'sinputindata le.Ininteractivemode,SHARPEwillprompttheuserforinputandreadfromtheuser'sterminal.Ingeneral,iftheusermistypesalineor
7、typesaninvalidline,SHARPEwillignorethelineandallowtheusertotryagain.However,someerrorsarefatal.WhenSHARPEissavingacopyoftheuser'sinputina le,itignoreslinescontainingerrors.Ifthereareany learguments,SHARPErunsinbatchmodeandreadsitsinputfromthe les.Whenthereismorethanone
8、input le,SHARPEdoesnotcare910AppendixAwherethe leboundarieslie;ittreatsthe lesasiftheywereconcatenatedintoone le.Inbo
