Enhanced Virtual Memory Framework for Fine-grained Memory Management
"Discover the benefits of managing memory at a fine granularity in this session with Vivek Seshadri and team. Explore efficient capacity management, protection, and security features. Learn why a 4KB page size is not considered fine-grained and how the framework enables powerful access semantics and flexible memory management techniques."
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Presentation Transcript
Page Overlays An Enhanced Virtual Memory Framework to Enable Fine-grained Memory Management Session 2B 10:45 AM Vivek Seshadri Gennady Pekhimenko, Olatunji Ruwase, Onur Mutlu, Phillip B. Gibbons, Michael A. Kozuch, Todd C. Mowry, Trishul Chilimbi
Managing memory at a fine-granularity has many benefits (efficient capacity management, protection, security, )
Managing memory at a fine-granularity has many benefits (efficient capacity management, protection, security, ) 4KB (page size) is NOT a fine-granularity
Managing memory at a fine-granularity has many benefits (efficient capacity management, protection, security, ) 4KB (page size) is NOT a fine-granularity Page Overlays P V O
Managing memory at a fine-granularity has many benefits (efficient capacity management, protection, security, ) 4KB (page size) is NOT a fine-granularity Page Overlays P Simple Low cost Largely retains the structure of existing virtual memory systems V O
Managing memory at a fine-granularity has many benefits (efficient capacity management, protection, security, ) 4KB (page size) is NOT a fine-granularity Page Overlays P Simple Low cost Largely retains the structure of existing virtual memory systems V O Powerful Access Semantics Many applications Efficient copy-on-write Sparse data structure representation Fine-grained metadata management Flexible superpages Memory checkpointing Fine-grained deduplication Virtualizing speculation
