Morsels: Explicit virtual memory objects

Publikationstyp
Conference Paper
Publikationsdatum
2023-10-23
Sprache
English
Author
Halbuer, Alexander
Dietrich, Christian orcid-logo
Operating Systems E-EXK4 
Rommel, Florian 
Lohmann, Daniel 
DOI
10.15480/882.8888
TORE-URI
https://hdl.handle.net/11420/44404
Start Page
52
End Page
59
Citation
1st Workshop on Disruptive Memory Systems (DIMES 2023)
Contribution to Conference
1st Workshop on Disruptive Memory Systems, DIMES 2023
Publisher DOI
10.1145/3609308.3625267
Scopus ID
2-s2.0-85176912779
Publisher
Association for Computing Machinery, Inc
The tremendous growth of RAM capacity - now exceeding multiple terabytes - necessitates a reevaluation of traditional memory-management methods, which were developed when resources were scarce. Current virtual-memory subsystems handle address-space regions as sets of individual 4-KiB pages with demand paging and copy-on-write, resulting in significant management overhead. Although huge pages reduce the number of managed entities, they induce internal fragmentation and have a coarse copy granularity.To address these problems, we introduce Morsels, a novel virtual-memory-management paradigm that is purely based on hardware data structures and enables the efficient sharing of virtual-memory objects between processes and devices while being well suited for non-volatile memory. Our benchmarks show that Morsels reduce the mapping time for a 6.82-GiB machine-learning model by up to 99.8 percent compared to conventional memory mapping in Linux.
DDC Class
004: Computer Sciences
Publication version
publishedVersion
Lizenz
https://creativecommons.org/licenses/by/4.0/
Thumbnail Image
Name

3609308.3625267.pdf

Type

main article

Size

649.16 KB

Format

Adobe PDF