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ID:40272270
大小:105.02 KB
页数:5页
时间:2019-07-30
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1、ACMWordTemplateforSIGSite1stAuthor1stauthor'saffiliation1stlineofaddress2ndlineofaddressTelephonenumber,incl.countrycode1stauthor'sE-mailaddress2ndAuthor2ndauthor'saffiliation1stlineofaddress2ndlineofaddressTelephonenumber,incl.countrycode2ndE-mail3rdAuthor3rdauthor'saffiliation1stlineofaddress2
2、ndlineofaddressTelephonenumber,incl.countrycode3rdE-mailABSTRACTAsnetworkspeedcontinuestogrow,newchallengesofnetworkprocessingisemerging.InthispaperwefirststudiedtheprogressofnetworkprocessingfromahardwareperspectiveandshowedthatI/Oandmemorysystemsbecomethemainbottlenecksofperformancepromotion.Bas
3、ingontheanalysis,wegettheconclusionthatconventionalsolutionsforreducingI/Oandmemoryaccessinglatenciesareinsufficientforaddressingtheproblems.Motivatedbythestudies,weproposedanimprovedDCAcombinedwithINICsolutionwhichhascreationsinoptimizedarchitectures,innovativeI/Odatatransferringschemesandimprove
4、dcachepolicies.Experimentalresultsshowthatoursolutionreduces52.3%and14.3%cyclesonaverageforreceivingandtransmittingrespectively.AlsoI/Oandmemorytrafficsaresignificantlydecreased.Moreover,aninvestigationtothebehaviorsofI/Oandcachesystemsfornetworkprocessingisperformed.AndsomeconclusionsabouttheDCAm
5、ethodarealsopresented.KeywordsKeywordsareyourowndesignatedkeywords.1.INTRODUCTIONRecently,manyresearchersfoundthatI/Osystembecomesthebottleneckofnetworkperformancepromotioninmoderncomputersystems[1][2][3].Aimtosupportcomputingintensiveapplications,conventionalI/Osystemhasobviousdisadvantagesforfas
6、tnetworkprocessinginwhichbulkdatatransferisperformed.ThelackoflocalitysupportandhighlatencyarethetwomainproblemsforconventionalI/Osystem,whichhavebeenwildlydiscussedbefore[2][4].Toovercomethelimitations,aneffectivesolutioncalledDirectCacheAccess(DCA)issuggestedbyINTEL[1].Itdeliversnetworkpackagesf
7、romNetworkInterfaceCard(NIC)intocacheinsteadofmemory,toreducethedataaccessinglatency.Althoughthesolutionispromising,itisprovedthatDCAisinsufficienttoreducetheaccessinglatencyandmemorytrafficduetomanylimitations[3
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