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342007JOURNALOFBEIJINGUNIVERSITYOFCHEMICALTECHNOLOGYVol.34,Sup.200712,32,3(11,200030;21,201804;31,201804):,,,,,,:;;:TP311:2007204230:,1969,E2mail:yan.cheng@163.com,,,,,,,,,,[1],,,:,,,,,,(),;,:,[2]:,?24365,[3],,,B2C,1111()()()11Table1Comparisonof3kindsofloadabilityevaluationmethods,,,API,,,,1Internet,,1Fig.1Principleoftest2basedevaluation112[3]Web,Web[2],,(),,J2EE:HPRP7410(2750MHzCPU/2GB);:HPUNIX11i;:oracle9iweblogic811:PC(4218GHz,2GB):WindowsXPsp2IE610:LoadRunner7.8,:100Mbps113,,[4],,,,,Oracle,(HighWaterMark,HWM)segmentblock,,,HWM,block,[4]114,,,;,,2,,;,96:,,,(2),,[2],,3,,,,,[2],([5])(1),,50200,,,[6](2):,,(3)50,(1)(4),50,(2),100150200,(5),(6)(130170),,(3)(5),10(7),LoadRunner,,,,,,,4411,(),(150),(2),50150,(3),4,2Table2Theresponsetimeoftypicaltransactions//s20019.654230.3560.1331503.91661.6080.0071001.22641.8280.003501.1522.2130.0023Table3Averagehitspersecondandthroughputofserver//(/s)/(/s)2001353558.76515039128424.16510036971622.7985046463828.3584Table4Averageordersperminute/3/20050.4150131.3100101.850105.53150,min10,07200715min(2)2Fig.2Thenumberofconcurrentusers3,(78min),8011min(120),,3Fig.3Hitspersecond,78min,11min,(4)4Fig.4Systemthroughput11min,,(5)66min(65),,,5Fig.5Theresponsetimeoftransactions6Fig.6Ordersperminuteoftheserver41226,(150),80,;65120,4,50100,;150,;200,,150,min131.3,130170,10,160,min13715413,,200,;,10020017:,,,200,,,5,,,,,,,,:[1]IEEEComputersociety.IEEEstandardglossaryofsoft2wareengineeringterminology[S]IEEEStd.610,12,1990.[2],,.Web[J].:,2004,34():158-161.[3]MYERSGJ.[M].2.,,.:,2006.[4],,,.Oracle[M].:,2005.[5]SCHROEDERPJ,KORELB.Black2boxtestreductionusinginput2outputanalysis[C]ProcoftheInternationalSymposiumonSoftwareTestingandAnalysis.Oregon,IEEEComputerSocietyPress.2000:173-177.[6],,.Web[J].,2003,17(2):57-59.Casestudyofloadabilityevaluationofe2businesssoftwareCHENGYan1JIANGJianHui2,3LOUJunGang2,3(11ShanghaiBMIAsiaSoftwareCompanyLtd,Shanghai200030;21KeyLaboratoryofEmbeddedSystemsandServiceComputing,MinistryofEducationofthePeoplesRepublicofChina,TongjiUniversity,Shanghai201804;31DepartmentofComputerScienceandTechnology,TongjiUniversity,Shanghai201804,China)Abstract:Theloadingcapacityisanimportantmeasureofe2businesssoftware.Threetypicalload2testingmeth2odsaredatastatisticandestimationofonlinesystem,programcalculation,test2basedevaluation.Now,peoplepaymoreandmoreattentiontothetest2basedevaluation.Thispaperdemonstratesthisevaluationmethodbyanexampleasmalle2businesssystem,anditsloadabilityisanalyzedindetailed.Theresultsshowthattheevalua2tionaimingtooptimizationcangetthebestforecastloaddatabyusingloadtestingstepbystep.Andonthepro2cessofloadabilityevaluation,weshouldchoosereasonablemeasurescarefullyaccordingtomainfunctionsoftheunder2evaluation2system.Keywords:loadtesting;virtualuser;numberofconcurrentusers272007