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NVC-Hashmap: A Persistent and Concurrent Hashmap For Non-Volatile Memories

Published: 31 August 2015 Publication History

Abstract

Non-volatile RAM (NVRAM) will fundamentally change in-memory databases as data structures do not have to be explicitly backed up to hard drives or SSDs, but can be inherently persistent in main memory. To guarantee consistency even in the case of power failures, programmers need to ensure that data is flushed from volatile CPU caches where it would be susceptible to power outages to NVRAM.
In this paper, we present the NVC-Hashmap, a lock-free hashmap that is used for unordered dictionaries and delta indices in in-memory databases. The NVC-Hashmap is then evaluated in both stand-alone and integrated database benchmarks and compared to a B+-Tree based persistent data structure.

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Cited By

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  • (2024)Rethinking Hash Tables: Challenges and Opportunities with Compute Express Link (CXL)Proceedings of the ACM Turing Award Celebration Conference - China 202410.1145/3674399.3674418(23-27)Online publication date: 5-Jul-2024
  • (2024)A quantitative evaluation of persistent memory hash indexesThe VLDB Journal — The International Journal on Very Large Data Bases10.1007/s00778-023-00812-133:2(375-397)Online publication date: 1-Mar-2024
  • (2023)IcebergHT: High Performance Hash Tables Through Stability and Low AssociativityProceedings of the ACM on Management of Data10.1145/35887271:1(1-26)Online publication date: 30-May-2023
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cover image ACM Other conferences
IMDM '15: Proceedings of the 3rd VLDB Workshop on In-Memory Data Mangement and Analytics
August 2015
63 pages
ISBN:9781450337137
DOI:10.1145/2803140
Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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  • SAMSUNG: SAMSUNG
  • VLDB Endowment: Very Large Database Endowment
  • Microsoft: Microsoft

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Association for Computing Machinery

New York, NY, United States

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Published: 31 August 2015

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Cited By

View all
  • (2024)Rethinking Hash Tables: Challenges and Opportunities with Compute Express Link (CXL)Proceedings of the ACM Turing Award Celebration Conference - China 202410.1145/3674399.3674418(23-27)Online publication date: 5-Jul-2024
  • (2024)A quantitative evaluation of persistent memory hash indexesThe VLDB Journal — The International Journal on Very Large Data Bases10.1007/s00778-023-00812-133:2(375-397)Online publication date: 1-Mar-2024
  • (2023)IcebergHT: High Performance Hash Tables Through Stability and Low AssociativityProceedings of the ACM on Management of Data10.1145/35887271:1(1-26)Online publication date: 30-May-2023
  • (2022)Tair-PMemProceedings of the VLDB Endowment10.14778/3554821.355482715:12(3346-3358)Online publication date: 1-Aug-2022
  • (2022)ComboTree: A Persistent Indexing Structure With Universal Operational Efficiency and ScalabilityIEEE Transactions on Parallel and Distributed Systems10.1109/TPDS.2021.313724733:10(2277-2290)Online publication date: 1-Oct-2022
  • (2021)ViperProceedings of the VLDB Endowment10.14778/3461535.346154314:9(1544-1556)Online publication date: 22-Oct-2021
  • (2021)Persistent memory hash indexesProceedings of the VLDB Endowment10.14778/3446095.344610114:5(785-798)Online publication date: 23-Mar-2021
  • (2021)Understanding the idiosyncrasies of real persistent memoryProceedings of the VLDB Endowment10.14778/3436905.343692114:4(626-639)Online publication date: 22-Feb-2021
  • (2021)Scaling Dynamic Hash Tables on Real Persistent MemoryACM SIGMOD Record10.1145/3471485.347150650:1(87-94)Online publication date: 17-Jun-2021
  • (2021)PETRAACM Transactions on Architecture and Code Optimization10.1145/344639118:2(1-26)Online publication date: 8-Mar-2021
  • Show More Cited By

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