According to one or more embodiments of the present invention, a computer-implemented method includes allocating a set of computing resources to a first partition from a plurality of partitions in a computer server, and monitoring a usage duration of the set of computing resources by the first partition. The method further includes generating a billing statement based on the usage duration of the computing resources by the first partition. The method further includes detecting an abnormal event in operation of the first partition and adjusting one or more settings of the set of computing resources to increase processing capacity associated with the first partition to complete the abnormal event. The method further includes monitoring a first usage duration of the computing resources during completion of the abnormal event and adjusting the usage duration of based on the first usage duration, and adjusting the billing statement using the adjusted usage duration.