结果分析向导Word文档下载推荐.docx
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结果分析向导Word文档下载推荐.docx
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RunningVusers5
HitsperSecond6
Throughput7
HitsperSecond-Throughput8
AverageTransactionResponseTime9
TransactionsperSecond(Passed/Failed)10
TotalTransactionsperSecond11
TransactionSummaryGraph12
TransactionPerformanceSummary13
TransactionResponseTime(UnderLoad)14
TransactionResponseTime(Percentile)15
HTTPStatusCodeSummary16
HTTPResponsesperSecond17
RetriesperSecond18
Connections19
ConnectionsperSecond20
ErrorStatistics21
ErrorStatistics(byDescription)22
ErrorsperSecond23
ErrorsperSecond(byDescription)24
ErrorsperSecond–RunningVusers25
Glossary26
AnalysisSummaryPage
TheAnalysisSummarypageisdividedintothreemainsections,thestatisticssummary,transactionsummary,andHTTPresponsessummary.Thestatisticssummarylistsoverallstatisticsofinterestinthescenario.
YoucancomparemaximumrunningVusersandthetotaldurationofthescenario(herethedurationis17:
08:
38–17:
54:
35,or46minutes)againstthroughputandhitsstatistics.BasedonVusersandduration,wastheperformanceoftheserver/applicationacceptablegiventhethroughputandhits/secondstatistics?
Youwillhavetohavesomeknowledgeofyourserver/databasecapabilitiesandconfigurationtomakethisdecision.
ThenextsectionoftheAnalysisSummaryistheTransactionSummary,containingstatisticsonindividualtransactions,theirresponsetimes(minimum,average,maximum,andstandarddeviation).
The“90Percent”statisticindicatesthemaximumresponsetimeofninetypercentforthetransactionsinthatrow.Basedonthestatisticsabove,youcouldsaythat90%ofthe“A_MainPage_AFI…”transactionshadamaximumresponsetimeof94.845seconds.
Passedandfailedtransactionsarealsolistedinthissection.Transactionswiththe“Z_”prefixcontainthesumofallstatisticsfortransactionsusedinthatscript.Thetotalpassedtransactionsinthe“Z_”transactionwillbeatmostequaltothesingletransactionwiththefewestpasses,excludingvuser_init/endtransactions.Thisisbecausethe“Z_”transactionrecordsstatisticsfortheentirescriptflow,notjustasingletransaction.IfaVusersuccessfullyexecutesallthestepsinascript,fromstarttofinish,onlythenwillthenumberofpassesforthe“Z_”transactionincrease.However,iffailuresoccuratanypointinthescript,thenumberoffailuresforthetransactioninwhichthefailureoccurredwillincrease,andthenumberoffailuresforthe“Z_”transactionwillincreaseaswell.
Inthestatisticsabove,thetotalnumberofpassesinthe“Z_”transactionwas776,correspondingtothesingletransactionwiththefewestpasses,“E_ResultsDisplay…”,whereasthetotalnumberoffailuresfor“Z_”isthesumoffailuresfortheentiregroup.
ThefinalsectionintheAnalysisSummaryistheHTTPResponsesSummary,whichcontainsthetotalandpersecondstatisticsforallHTTPresponsesrecordedduringthetest.ThemostcommonresponsecodeswillbeHTTP200,indicatingsuccess.ForalistofallHTTPresponsecodesandtheirmeaningsseetheattacheddocumentintheglossary.
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RunningVusers
TheRunningVusersgraphdisplaysthenumberofvirtualuserscurrentlyexecutingscriptsinthetestscenario.AVuserperformsasequenceoftasksdefinedinatestscriptuntilthetesthascompleteditsduration,theVuserhasexecutedthescriptforarequirednumberofiterations,orthetestcontrollermanuallystopstheVuser.
Vuserswillusuallybeaddedtothescenarioinwhatiscalleda“gradualramp-up,”unlikethegraphabovewhereallVusersareaddedtothescenariosimultaneously.AfterthenumberofVusersreachesalevelsetinthestresstestplan,thatloadismaintainedforasetdurationbeforeagradualramp-downisinitiated.Theramp-downisusuallyfasterthantheramp-up,becauseremovingusersfromthescenariowillalmostneveradverselyaffectserverperformance.
Wheneveraproblemoccursduringatest,youshouldalwaysbeawareofthenumberofVuserscurrentlyrunninginthescenario.Thepurposeofastresstestistodiagnoseproblemsinanapplicationunderasimulatedload,soinanunstableapplicationitistypicaltoseeadecreaseinsomeperformancemeasurewhenthenumberofVuserspassesacertainlevel.AsuddennegativeshiftinperformanceusuallymeansthenumberofrunningVusershasincreased.
Thegraphabovefollowsatypicaltestschedule,witharamp-upof10usersperminutetoapeakloadof250users,thenthetestwasrunatpeakloadfor10minutes,andaramp-downofapproximately25usersperminute.
HitsperSecond
TheHitsperSecondgraphshowsthenumberofhitsontheWebserverovertime.Thisgraphcandi
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