NDLI: Efficient virtual memory for big memory servers

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Efficient virtual memory for big memory servers

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Efficient virtual memory for big memory servers

Content Provider	ACM Digital Library
Author	Basu, Arkaprava Swift, Michael M. Chang, Jichuan Gandhi, Jayneel Hill, Mark D.
Abstract	Our analysis shows that many "big-memory" server workloads, such as databases, in-memory caches, and graph analytics, pay a high cost for page-based virtual memory. They consume as much as 10% of execution cycles on TLB misses, even using large pages. On the other hand, we find that these workloads use read-write permission on most pages, are provisioned not to swap, and rarely benefit from the full flexibility of page-based virtual memory. To remove the TLB miss overhead for big-memory workloads, we propose mapping part of a process's linear virtual address space with a direct segment, while page mapping the rest of the virtual address space. Direct segments use minimal hardware---base, limit and offset registers per core---to map contiguous virtual memory regions directly to contiguous physical memory. They eliminate the possibility of TLB misses for key data structures such as database buffer pools and in-memory key-value stores. Memory mapped by a direct segment may be converted back to paging when needed. We prototype direct-segment software support for x86-64 in Linux and emulate direct-segment hardware. For our workloads, direct segments eliminate almost all TLB misses and reduce the execution time wasted on TLB misses to less than 0.5%.
Starting Page	237
Ending Page	248
Page Count	12
File Format	PDF
ISBN	9781450320795
DOI	10.1145/2485922.2485943
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2013-06-23
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Virtual memory Tanslation lookaside buffer
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Efficient virtual memory for big memory servers

Efficient Memory Virtualization: Reducing Dimensionality of Nested Page Walks

Efficient Memory Virtualization: Reducing Dimensionality of Nested Page Walks

Tranlation-Lookaside Buffer Consistency (1990)

Efficient virtual memory for big memory servers.

Agile paging: exceeding the best of nested and shadow paging

Translation hint buffers to reduce access time of physically-addressed instruction caches

Energy Efficient Buffer Cache Replacement for Data Servers

Reducing translation lookaside buffer active power

Efficient virtual memory for big memory servers

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Efficient virtual memory for big memory servers

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