java应用系统的资源消耗模式-研究

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1、AbstractWiththedevelopmentofinformationtechnologyandtheinca'easementofJavaapplications，lasersandinformations，howtoquantitativelymeasureandqualitativelyanalyzethesysteml'esourc宅consumptioninordertorationallyusecomputingrCSOUTCeSandtoprovidereliableandefficientnetworkse

2、rvices，is觚importantissuethatboththeindustryandacademicconcern．ThepaperresearchontheresourceconsumptionpatternsofJavaapplicationsystems，theselectedtopicshaveimportantapplicationvalueandacademicvalue．Thepaperproposedthewaytoquantitativelymeasureandqualitativelyanalyzeth

3、esystemresourceconsumptionaccordingtobusinesstypesandoperatingcharacteristicsofwebapplicationsafteranalyzingtheresourceconsumptionofjavaapplicationsystems，withinnovation．WiththeAcademicDegree&GraduateEducationEvaluatingPlatformofMOE，thepaperforeusontheresourceconsumpt

4、ionofthebusinessandtheoperationofpageloading,filegeneratinganddownloading,fileuploadingandemailbulksending．Thepaperresearchedonthedifferencesandcorrelationofdifferentbusinessandoperations’resourceconsumptionofCPU，RAM，diskandnetwork,proposedthewaytogaintheinformationso

5、fthoseresoBl'C)econsumption．．ThepaperresearchedthegarbagecollectionmechanismofJavaVirtualMachine，thewayTomcatprocessesWebrequest，andthenproposedtheServicemethodofTomcatconnectershouldbetreatedastheflagtodividedifferentrequests，ThepaperusedDtraceandLoadRunnertOmeasuTes

6、omeservicesofatrulyonlineapplication,afterinformationisgained，Thepapermovedthedataintodatabaseandanalyzedit．Theexperimentresultshowsthatalltheresourceconsumptionislinearcorrelatedwiththeresponsetime．ThefilegeneratinganddownloadinghasmostRAMconsumption,thefiledownloadi

7、nghasmostnetworkwriting,regardlessthefilesize,theuploadingofonefilealwaysneedsfixedRAM，theresponsetimeontheservermerelychangeswiththesizeofthefile．ThefilegeneratinganddownloadinghasIIAbstractmoredatabaseusage．Mailsendinghasmorenetworkwriting，andhardlyanyinteractwithth

8、edatabase．Theclassificationofresourceconsumptionofwebapplicationwillbenefittopredicttheperformanceofwebapplicationsbeforethe