Noisy Neighbour is a term from cloud computing. A noisy neighbor is a user that dominates the resources provided, such as bandwidth or computing power, in a multi-tenant architecture
. The other users have to share the remaining resources, but in unequal proportions.
In a multi-tenant architecture, applications are hosted by multiple users. If one user dominates the services and uses excessive computing power or bandwidth, then this will limit the other users' applications from running. This can increase compute times and latency
. It is different in single-tenancy architectures, which provide separate software instances or hardware systems to individual users.