Garbage-First Garbage Collection

Garbage-First Garbage Collection

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時(shí)間:2019-08-08

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1、Garbage-FirstGarbageCollectionDavidDetlefs,ChristineFlood,SteveHeller,TonyPrintezisSunMicrosystems,Inc.1NetworkDrive,Burlington,MA01803,USAfdavid.detlefs,christine.?ood,steve.heller,tony.printezisg@sun.comABSTRACTanyymstimeslice.Bymakingthisgoalexplicit,thecollec-torcantrytokeepcollect

2、ionpausesassmallandinfrequentGarbage-Firstisaserver-stylegarbagecollector,targetedasnecessaryfortheapplication,butnotsolowastodecreaseformulti-processorswithlargememories,thatmeetsasoftthroughputorincreasefootprintunnecessarily.Thispaperreal-timegoalwithhighprobability,whileachievinghi

3、ghdescribestheGarbage-Firstcollectionalgorithm,whichat-throughput.Whole-heapoperations,suchasglobalmark-temptstosatisfysuchasoftreal-timegoalwhilemaintain-ing,areperformedconcurrentlywithmutation,topreventinghighthroughputforprogramswithlargeheapsandhighinterruptionsproportionaltoheapo

4、rlive-datasize.Concur-allocationrates,runningonlargemulti-processormachines.rentmarkingbothprovidescollection"completeness"andTheGarbage-Firstcollectorachievesthesegoalsviasev-identi esregionsripeforreclamationviacompactingevac-eraltechniques.Theheapispartitionedintoasetofequal-uation.

5、Thisevacuationisperformedinparallelonmulti-sizedheapregions,muchlikethetraincarsoftheMature-processors,toincreasethroughput.ObjectSpacecollectorofHudsonandMoss[22].However,CategoriesandSubjectDescriptors:whereastherememberedsetsoftheMature-ObjectSpaceD.3.4[ProgrammingLanguages]:Process

6、ors

7、Memorycollectorareunidirectional,recordingpointersfromoldermanagement(garbagecollection)regionstoyoungerbutnotviceversa,Garbage-Firstremem-GeneralTerms:Languages,Management,Measurement,beredsetsrecordpointersfromallregions(withsomeexcep-Performancetions,describedinsections2.4and4.6

8、).Recordingallref-Keywords:concurrentgarbragecollection,garbagecollec-erencesallowsanarbitrarysetofheapregionstobechosention,garbage- rstgarbagecollection,parallelgarbagecol-forcollection.Aconcurrentthreadprocesseslogrecordscre-lection,softreal-timegarbagecollectionatedbyspecialmutat

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