摘要
AmajoroverheadinsoftwareDSM(DistributedSharedMemory)isthecostofremotememoryaccessesnecessitatedbytheprotocolaswellasinducedbyfalsesharing.ThispaperintroducesadynamicprefetchingmethodimplementedintheJIAJIAsoftwareDSMtoreducesystemoverheadcausedbyremoteaccesses.TheprefetchingmethodrecordstheinterleavingstringofINV(invalidation)andGETP(gettingaremotepage)operationsforeachcachedpageandanalyzestheperiodicityofthestringwhenapageisinvalidatedonalockorbarrier.AprefetchingrequestisissuedafterthelockorbarrieriftheperiodicityanalysisindicatesthatGETPwillbethenextoperationinthestring.Multipleprefetchingrequestsaremergedintothesamemessageiftheyaretothesamehost,Performanceevaluationwitheightwell-acceptedbenchmarksinaclusterofsixteenPowerPCworkstationsshowsthattheprefetchingschemecansignificantlyreducethepagefaultoverheadandasaresultachievesaperformanceincreaseof15%-20%inthreebenchmarksandaround8%-10%inanotherthree.Theaverageextratrafficcausedbyuselessprefetchesisonly7%-13%intheevaluation.
出版日期
2001年03月13日（中国Betway体育网页登陆平台首次上网日期，不代表论文的发表时间）
