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Design Tradeoffs in CXL-Based Memory Pools for Public Cloud Platforms

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dc.contributor.authorBerger, Daniel S.en
dc.contributor.authorErnst, Danen
dc.contributor.authorLi, Huaichengen
dc.contributor.authorZardoshti, Panteaen
dc.contributor.authorShah, Monishen
dc.contributor.authorRajadnya, Samiren
dc.contributor.authorLee, Scotten
dc.contributor.authorHsu, Lisaen
dc.contributor.authorAgarwal, Ishwaren
dc.contributor.authorHill, Mark D.en
dc.contributor.authorBianchini, Ricardoen
dc.date.accessioned2023-03-01T15:59:04Zen
dc.date.available2023-03-01T15:59:04Zen
dc.date.issued2023-02en
dc.date.updated2023-03-01T01:45:41Zen
dc.description.abstractDRAM is a key driver of performance and cost in public cloud servers. At the same time, a significant amount of DRAM is underutilized due to fragmented use across servers. Emerging interconnects such as CXL offer a path towards improving utilization through memory pooling. However, the design space of CXL-based memory systems is large, with key questions around the size, reach, and topology of the memory pool. At the same time, using pools requires navigating complex design constraints around performance, virtualization, and management. This paper discusses why cloud providers should deploy CXL memory pools, key design constraints, and observations in designing towards practical deployment. We identify configuration examples with significant positive return of investment.en
dc.description.versionAccepted versionen
dc.format.extentPages 1-10en
dc.format.mimetypeapplication/pdfen
dc.identifier.doihttps://doi.org/10.1109/MM.2023.3241586en
dc.identifier.eissn1937-4143en
dc.identifier.issn0272-1732en
dc.identifier.issue99en
dc.identifier.orcidLi, Huaicheng [0000-0002-3155-0203]en
dc.identifier.urihttp://hdl.handle.net/10919/114016en
dc.language.isoenen
dc.publisherIEEEen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.titleDesign Tradeoffs in CXL-Based Memory Pools for Public Cloud Platformsen
dc.title.serialIEEE Microen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten
dc.type.otherJournal Articleen
pubs.organisational-group/Virginia Techen
pubs.organisational-group/Virginia Tech/Engineeringen
pubs.organisational-group/Virginia Tech/Engineering/Computer Scienceen
pubs.organisational-group/Virginia Tech/All T&R Facultyen
pubs.organisational-group/Virginia Tech/Engineering/COE T&R Facultyen

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