MATLAB Code for Scheduling Algorithm of virtual machines by analysis of workload interference

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Virtualization technology has received much attention in modern datacenters in recent years. Isolation is one of the most important advantages of this technology. A perfect isolation among running virtual machines (VMs) means that the performance of each VM is completely independent of other VMs running on the same physical machine (PM), as a result, VMs do not interfere. In today virtual environments, isolation is not guaranteed due to resource contentions occurred in hypervisor level. How VMs are consolidated on the same physical machine (PM) is an important factor in causing resource contentions. In this paper, we investigate the effect of factors such as the number of VMs, network and processor utilization on generating interference and network performance. For studying the effect of workload types, we investigate several experiments and present a model to determine interference. We also present another model for studying the effect of Number of VMs. In the rest, we formulate interference and present scheduling algorithm for avoiding performance degradation.

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