Random and hot objects are allocated to tiers according to the Knapsack problem.
As discussed in "Overview" section, the output of the optimization is a resource allocation plan represented by the number of resources allocated to each tier n per application a, in each resource allocation interval t.
As described previously in "Overview" section, RAP relies on a WAM performance model to predict applications' SLOs given applications' workloads scenarios and resources allocated to the tiers.
Equation (6) relates application mean response time R a as a function of its workload scenario W a and the resources allocated to all tiers n ∈ {1,… N a } of application a for all resource allocation intervals t ∈ {1,…T}.
In heterogeneous networks, frequency resources can be allocated to different tiers in a co-channel (shared spectrum) or dedicated channel (split spectrum b manner, or through a hybrid technique which is a combination of the two approaches.
Using VMs to host multi-tier web map services can effectively address this limitation because virtualized resources, including CPU, memory, and I/O, are decoupled from their physical infrastructures and can be flexibly allocated to different tiers of the web map system [10].
One resource instance with Y cores can be allocated to the database tier.
Otherwise, at high D2D user densities, D2D communication should use the overlay approach rather than the underlay, that is, dedicated time/frequency resources should be allocated to the D2D tier.
I have observed a common practice among organizations where a substantial amount of their learning and development resources is allocated to the top tier of their employee population, leaving a much smaller percentage of learning and development resources for the remaining middle and lower tiers of the employee population.
Among all application tiers, the bottleneck tier has the most effect on the mean response time of an application and consequently the application's V a. Specifically, at each decision stage for each application in each interval, one resource of the appropriate flavour is allocated to the bottleneck tier.
