Multi-system event response calculator and resource allocator

Embodiments analyze historical events to calculate the impact of multi-system events and, in response, allocate resources. Embodiments determine a multi-system event is occurring based on historical multi-system event data; correlate the multi-system event with one or more predicted resource allocation results of the multi-system event based on historical multi-system event data; and in response to the correlation, initiate mitigation of the one or more predicted resource allocation results, including re-allocation of at least one affected resource to a new system. Some also determine current consumption of a resource utilized by a service; determine current processing throughput; calculate a relationship between consumption of the resource and processing throughput; determine the service is impacted by the multi-system event; calculate expected processing throughput in response to the multi-system event; and calculate expected consumption of the resource based on the calculated expected processing throughput and the calculated relationship.