Downtime Minimization This section investigates the downtime minimization mechanism described in Section 3. From the experiments, we observed that the average bandwidth values reduced as the number of host CPU cores on which the VM CPUs were running reduces. Figure 4 shows TLM live migration time and downtime performance of the MG, IS, SP, and BT benchmarks under various parameters. It can be seen that CPU over-committing can significantly reduce TLM migration times and downtimes. Figure 6 shows downtime values against two CPU over-committing parameters: the adjust-point and the reduced-cores (defined in Section 3). Four graphs for the MG, IS, SP, and BT benchmarks are presented.