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Memory Migration on Next-Touch

hal.structure.identifierLaboratoire Bordelais de Recherche en Informatique [LaBRI]
hal.structure.identifierEfficient runtime systems for parallel architectures [RUNTIME]
dc.contributor.authorGOGLIN, Brice
hal.structure.identifierLaboratoire Bordelais de Recherche en Informatique [LaBRI]
hal.structure.identifierEfficient runtime systems for parallel architectures [RUNTIME]
dc.contributor.authorFURMENTO, Nathalie
dc.date.accessioned2024-04-15T09:51:45Z
dc.date.available2024-04-15T09:51:45Z
dc.date.issued2009
dc.date.conference2009-07-15
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/198457
dc.description.abstractEnNUMA abilities such as explicit migration of memory buffers enable flexible placement of data buffers at runtime near the tasks that actually access them. The move_pages system call may be invoked manually but it achieves limited throughput and implies a strong collaboration of the application. Indeed, the location of threads and their memory access patterns must be carefully known so as to decide when migrating the right memory buffer on time. We present the implementation of a Next-Touch memory placement policy so as to enable automatic dynamic migration of pages when they are actually accessed by a task. We introduce a new PTE flag setup by madvise, and the corresponding Copy-on-Touch codepath in the page-fault handler which allocates the new page near the accessing task. We then look at the performance and overheads of this model and compare it to using the move_pages system call.
dc.language.isoen
dc.title.enMemory Migration on Next-Touch
dc.typeCommunication dans un congrès
dc.subject.halInformatique [cs]/Système d'exploitation [cs.OS]
bordeaux.hal.laboratoriesLaboratoire Bordelais de Recherche en Informatique (LaBRI) - UMR 5800*
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionBordeaux INP
bordeaux.institutionCNRS
bordeaux.conference.titleLinux Symposium
bordeaux.countryCA
bordeaux.conference.cityMontreal
bordeaux.peerReviewedoui
hal.identifierinria-00378580
hal.version1
hal.invitednon
hal.proceedingsoui
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//inria-00378580v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.date=2009&rft.au=GOGLIN,%20Brice&FURMENTO,%20Nathalie&rft.genre=unknown


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