In infrastructure-as-a-service environments, Cloud data centers employ virtualization technology to host various applications in virtual machines (VMs) and enable application isolation on shared physical resources. Additionally, live VM migration has been adopted to perform load balancing by moving VMs across distinct hosts. However, co-located VMs that show significant positive correlations on their CPU utilization patterns are at a higher risk of triggering overloading events and incurring performance degradation, even when their host is operating below its critical limits. To address this problem, a VM consolidation mechanism inspired by host-switching behaviors in symbiotic associates is proposed in this paper. In the proposed mechanism, hosts and VMs in Cloud data centers represent symbionts in an ecosystem. Two heuristic functions, inspired by host susceptibility and symbiotic coefficient among symbionts, are proposed to yield better resource utilization via VM consolidations. Experiment results demonstrate that the proposed mechanism can achieve reductions in both energy consumption and service level agreement violations of Cloud data centers.

中文翻译：

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生物启发式启发式技术，用于云数据中心中的虚拟机整合

在基础架构即服务环境中，云数据中心采用虚拟化技术在虚拟机（VM）中托管各种应用程序，并在共享物理资源上实现应用程序隔离。此外，实时VM迁移已通过在不同主机之间移动VM来执行负载平衡。但是，位于同一主机上的VM在其CPU利用率模式上显示出显着的正相关性，即使他们的主机在其关键限值以下运行，也具有触发过载事件和导致性能下降的较高风险。为了解决这个问题，本文提出了一种基于共生伙伴中主机切换行为的虚拟机整合机制。在提出的机制中，云数据中心中的主机和虚拟机代表了生态系统中的共生体。两种启发式功能，受到宿主共生性和共生体之间共生系数的启发，提出通过VM整合产生更好的资源利用。实验结果表明，该机制可以降低能耗，并减少违反云数据中心的服务水平协议。