Parallel VM Deployment with Provable Guarantees

Itamar Cohen, Gil Einziger, Maayan Goldstein, Yaniv Sa'Ar, Gabriel Scalosub, Erez Waisbard

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

4 Scopus citations


Network Function Virtualization (NFV) carries the potential for on-demand deployment of network algorithms in virtual machines (VMs). In large clouds, however, VM resource allocation incurs delays that hinder the dynamic scaling of such NFV deployment. Parallel resource management is a promising direction for boosting performance, but it may significantly increase the communication overhead and the decline ratio of deployment attempts. Our work analyzes the performance of various placement algorithms and provides empirical evidence that state of the art parallel resource management dramatically increases the decline ratio of deterministic algorithms, but hardly affects randomized algorithms. We therefore introduce APSR - an efficient parallel random resource management algorithm that requires information only from a small number of hosts and dynamically adjusts the degree of parallelism to provide provable decline ratio guarantees. We formally analyze APSR, evaluate it on real workloads, and integrate it into the popular OpenStack cloud management platform. Our evaluation shows that APSR matches the throughput provided by other parallel schedulers, while achieving up to 13x lower decline ratio and a reduction of over 85% in communication overheads.

Original languageEnglish
Title of host publication2021 IFIP Networking Conference, IFIP Networking 2021
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9783903176393
StatePublished - 21 Jun 2021
Externally publishedYes
Event20th Annual IFIP Networking Conference, IFIP Networking 2021 - Virtual, Espoo, Finland
Duration: 21 Jun 202124 Jun 2021

Publication series

Name2021 IFIP Networking Conference, IFIP Networking 2021


Conference20th Annual IFIP Networking Conference, IFIP Networking 2021
CityVirtual, Espoo


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