Patent attributes
Technologies are generally provided for optimizing virtual machine performances at a datacenter and managing sudden resource demand changes by co-residing applications on same virtual machines through a flexible resource demand certification approach. A flexible resource demand certificate may be generated for applications including predetermined operating compilation architectures that run well but have different resource demands. A Just-In-Time (JIT) compiler may be directed to selected target settings for a combination of operational parameter settings such that the co-residing applications can share resources without overloading system resources. Applications to be migrated to a new datacenter or a new virtual machine at a datacenter may be assigned and adjusted according to their and potential co-residing applications' certificates providing optimized resource usage.
