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Cloud monitoring tools are a popular solution for both cloud users and administrators of private cloud infrastructures. These tools provide information that can be useful for effective and efficient resource consumption management, supporting the decision-making process in scenarios where administrators must react rapidly to saturation and failure events. However, the estimation of the impact on host systems in a private cloud is not a trivial issue for administrators, specially when monitoring measurements are required in reduced periods of times. This paper presents a performance comparison between two free and well supported cloud monitoring tools called Ceilometer and Monasca, deployed on a private cloud infrastructure. This comparison is mainly focused on evaluating these tools ability to obtain monitoring information in short time intervals for early detection of resource constraints. The impact of resource consumption on the performance of host systems produced by both tools was analyzed and the evaluation revealed that Monasca produced a better performance than Ceilometer for evaluated scenarios and that, according to the learned lessons in this comparison, Monasca represents a suitable option for being integrated into an adaptive cloud resource management system.

Assessment of Private Cloud Infrastructure Monitoring Tools - A Comparison of Ceilometer and Monasca