Meunik: Rethinking Virtual Machine Memory Resource Management for Unikernel-Based VMs

Symposium on Edge Computing（2024）

Zhejiang Lab | School of Computing

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Abstract

In this paper, we investigate the problem of achieving efficient memory resource management for unikernel-based virtual machines (uVMs), where unikernels are running as the operating systems of the VMs. Through extensive experiments, we first demonstrate that existing VM memory management mechanisms are unsuitable for uVMs. Then, we propose MEUNIK, a system that aims to achieve high memory management efficiency or uVMs. The four key mechanisms of MEUNIK are designed to address the problems we find in existing solutions. We have implemented a prototype MEUNIK system based on the Xen hypervisor and performed extensive evaluation experiments on three groups of uVMs, which are constructed based on a variety of programs and applications, including fifteen small benchmark programs, four complex server applications, and two network-operation-heavy programs. The evaluation results show that our system achieves the design goals with minimal overhead.

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Key words

unikernel,virtualization,hypervisor,library os,edge computing

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【要点】：本文针对基于unikernel的虚拟机（uVMs）的内存资源管理问题进行研究，提出了一种高效内存管理机制MEUNIK，显著提升了uVMs的内存管理效率。

【方法】：通过分析现有虚拟机内存管理机制在uVMs中的不适用性，设计并实现了MEUNIK系统，该系统包含四个关键机制来解决现有方案的问题。

【实验】：基于Xen虚拟机监视器实现了一个MEUNIK原型系统，并在包含十五个小型基准程序、四个复杂服务器应用和两个网络操作密集型程序的三个uVMs组上进行了评估实验，结果显示MEUNIK系统能够以最小的开销实现设计目标。