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1、软件测试中有关性能测试结果的几点分析原则（Analysisprinciplesofperformancetestresultsinsoftwaretesting）Analysisprinciplesofperformancetestresults:Specificissuesspecificanalysis(thisisduetodifferentapplicationsystems,differenttestpurposes,differentperformanceconcerns)Findthebottleneckinthefollowingorder,fr
2、omeasytodifficult.Theserverhardwarebottleneck-"networkbottleneck(ontheLAN,cannotconsider)-"serveroperatingsystembottleneck(parameterconfiguration)-"bottleneck(parameterconfiguration,databasemiddleware,webserver(SQL)-"applicationbottleneckstatements,databasedesign,businesslogicalgorit
3、hm,etc.)Note:theaboveprocedureisnotrequiredineachanalysis,andthedepthofanalysisshouldbedeterminedaccordingtothepurposeandrequirementofthetest.Forsomelowrequirements,weanalyzetheapplicationsysteminthefuturelargeloadpressure(concurrentusernumber,datavolume),wherethehardwarebottleneckof
4、thesystemisenough.Intheanalysisofperformancetestresults,thesubsectioneliminationmethodisveryeffectiveSourcesofinformationforanalysis:1)accordingtotheerrorinformationintheprocessofsceneoperation2)monitoringindexdatacollectedaccordingtothetestresultsErroranalysisofperformancetestresult
5、sAnalysisexample:1)Error:Failedtoconnecttoserver"payment.baihe.com":[10060]ConnectionError:timedoutError:Server"user.baihe.com"hasshutdowntheconnectionprematurelyAnalysis：A,applicationservicedead.Smallusers:Problemsontheprogram.TheproblemofprocessingdatabaseonprogramB,applicationserv
6、icesarenotdead(applicationserviceparametersettingproblem)Example:inmanyclientconnections,theWeblogicapplicationserverisrejected,andthereisnoerrordisplayontheserverside,itmaybethattheAcceptBacklogattributevalueoftheserverelementintheWeblogicissettoolow.Iftheconnectionrefusedmessageisr
7、eceivedduringtheconnection,thevalueshouldbeincreasedby25%eachtimeConnectionofCanddatabase(1)theperformanceparametersoftheapplicationservicemaybetoosmalltobe2,andthemaximumnumberofconnectionsthatthedatabasestartsisrelatedtothememoryofthehardware2)Error:Pagedownloadtimeout(120seconds)h
8、asexpiredAna
