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Nested Virtualization Without the Nest

Bacou, Mathieu and Todeschi, Grégoire and Tchana, Alain and Hagimont, Daniel Nested Virtualization Without the Nest. (2019) In: 48th International Conference on Parallel Processing (ICPP 2019), 5 August 2019 - 8 August 2019 (Kyoto, Japan).

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Official URL: https://doi.org/10.1145/3337821.3337840


With the increasing popularity of containers, managing them on top of virtual machines becomes a common practice, called nested virtualization. This paper presents BrFusion and Hostlo, two solutions that address each of two networking issues of nested virtualization: network virtualization duplication and virtual machine-bounded pod deployments. The first issue lengthens network packet paths while the second issue leads to resource fragmentation. For instance, in respect with the first issue, we measured a throughput degradation of about 68% and a latency increase of about 31% in comparison with a single networking layer. We prototype BrFusion and Hostlo in Linux KVM/QEMU, Docker and Kubernetes systems. The evaluation results show that BrFusion leads to the same performance as a single-layer virtualization deployment. Concerning Hostlo, the results show that more than 11% of cloud clients see their cloud utilization cost reduced by down to 40%.

Item Type:Conference or Workshop Item (Paper)
Additional Information:Thanks to ACM: Association for Computing Machinery. The definitive version is available at http://dl.acm.org This papers appears in article 12 of ICPP 2019: Proceedings of the 48th International Conference on Parallel Processing. The original PDF is available at: https://dl.acm.org/doi/10.1145/3337821.3337840
HAL Id:hal-02947732
Audience (conference):International conference proceedings
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Other partners > Université Nice Sophia Antipolis (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Université de Toulouse > Université Toulouse - Jean Jaurès - UT2J (FRANCE)
Université de Toulouse > Université Toulouse 1 Capitole - UT1 (FRANCE)
Laboratory name:
Deposited On:10 Sep 2020 15:07

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