Article

Libra: a library operating system for a jvm in a virtualized execution environment

Authors:

Jonathan Appavoo,

Dilma Da Silva,

Kiyokuni Kawachiya,

Bryan Rosenburg,

Eric Van Hensbergen,

Robert W. WisniewskiAuthors Info & Claims

VEE '07: Proceedings of the 3rd international conference on Virtual execution environments

Pages 44 - 54

https://doi.org/10.1145/1254810.1254817

Published: 13 June 2007 Publication History

Abstract

If the operating system could be specialized for every application, many applications would run faster. For example, Java virtual machines (JVMs) provide their own threading model and memory protection, so general-purpose operating system implementations of these abstractions are redundant. However, traditional means of transforming existing systems into specialized systems are difficult to adopt because they require replacing the entire operating system. This paper describes Libra, an execution environment specialized for IBM's J9 JVM. Libra does not replace the entire operating system. Instead, Libra and J9 form a single statically-linked image that runs in a hypervisor partition. Libra provides the services necessary to achieve good performance for the Java workloads of interest but relies on an instance of Linux in another hypervisor partition to provide a networking stack, a filesystem, and other services. The expense of remote calls is offset by the fact that Libra's services can be customized for a particular workload; for example, on the Nutch search engine, we show that two simple customizations improve application throughput by a factor of 2.7.

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Index Terms

Libra: a library operating system for a jvm in a virtualized execution environment
1. General and reference
  1. Cross-computing tools and techniques
    1. Performance
2. Software and its engineering

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cover image ACM Conferences

VEE '07: Proceedings of the 3rd international conference on Virtual execution environments

June 2007

210 pages

ISBN:9781595936301

DOI:10.1145/1254810

General Chair:
Chandra Krintz
University of California, Santa Barbara
,
Program Chairs:
Steven Hand
University of Cambridge
,
David Tarditi
Microsoft Research

Copyright © 2007 ACM.

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Published: 13 June 2007

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VEE07: International Conference on Virtual Execution Environments

June 13 - 15, 2007

California, San Diego, USA

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Tauro BLiu CHale K(2022)Modeling Speedup in Multi-OS EnvironmentsIEEE Transactions on Parallel and Distributed Systems10.1109/TPDS.2021.311498433:6(1436-1450)Online publication date: 1-Jun-2022
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