OCVM: Optimizing the Isolation of Virtual Machines with Open-Channel SSDs

  • Zhe Liu
  • , Xiaojian Liao
  • , Fei Li
  • , Zhe Yang
  • , Youyou Lu
  • , Jiwu Shu*
  • *Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

A longstanding goal of virtual machines (VMs) isolation running on commercial Solid State Drives (SSDs) is to avoid performance degradation which could be quite severe in certain cases. However, it has been a challenge due to the limitations of the traditional flash translation layer (FTL). We propose OCVM, a novel storage stack that optimizes the isolation of VMs in a multiple VMs environment. By providing channel-granular and block-granular isolation for VMs, OCVM significantly reduces storage internal resource conflicts and eases the pressure of garbage collection (GC). To achieve good VM isolation as well as hardware utilization, OCVM applies a dynamic allocation mechanism for the underlying storage resources of the open-channel SSD (OCSSD). The evaluation results demonstrate that the average execution time of data-intensive applications on OCVM shortens by 28%, compared to those on a baseline system. In addition, OCVM achieves better GC efficiency by reducing the frequency of data migration.

Original languageEnglish
Title of host publicationAlgorithms and Architectures for Parallel Processing - 20th International Conference, ICA3PP 2020, Proceedings
EditorsMeikang Qiu
PublisherSpringer Science and Business Media Deutschland GmbH
Pages416-432
Number of pages17
ISBN (Print)9783030602444
DOIs
StatePublished - 2020
Externally publishedYes
Event20th International Conference on Algorithms and Architectures for Parallel Processing, ICA3PP 2020 - New York, United States
Duration: 2 Oct 20204 Oct 2020

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume12452 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Conference

Conference20th International Conference on Algorithms and Architectures for Parallel Processing, ICA3PP 2020
Country/TerritoryUnited States
CityNew York
Period2/10/204/10/20

Keywords

  • Flash channel
  • Flash memory
  • Isolation
  • Open-Channel SSD
  • Virtual machine

Fingerprint

Dive into the research topics of 'OCVM: Optimizing the Isolation of Virtual Machines with Open-Channel SSDs'. Together they form a unique fingerprint.

Cite this