Technique For Scaling An Application Having A Set Of Virtual Machines

A technique for scaling an application with a set of one or more virtual machines is described. The technique may be performed during runtime of the application and responsive to a determination that a scaling operation is required for the application. That determination can be based on at least one first performance measurement result for the application. A method implementation of the technique comprises calculating a scaling magnitude for the required scaling operation taking into account at least one second performance measurement result for the application. The scaling magnitude is indicative of a resource quantity to be added to or removed from the application. The method further comprises triggering generation of a scaling request. The scaling request is directed at a scaling of the application on the basis of the calculated scaling magnitude.