Bio-Inspired Heuristics for VM Consolidation in Cloud Data Centers

Jing V. Wang, Nuwan Ganganath, Chi Tsun Cheng, Chi K. Tse

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)


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.

Original languageEnglish
Article number8665989
Pages (from-to)152-163
Number of pages12
JournalIEEE Systems Journal
Issue number1
Early online date12 Mar 2019
Publication statusPublished - Mar 2020


Dive into the research topics of 'Bio-Inspired Heuristics for VM Consolidation in Cloud Data Centers'. Together they form a unique fingerprint.

Cite this