a black-box • SISO models - MIMO too complex • Action • predictive, dataflow-wide The output signal is the delay time ??? Vasiliki Kalavri | Boston University 2020 Control theory models 10 • a black-box • SISO models - MIMO too complex • Action • predictive, dataflow-wide The output signal is the delay time Performance depends on parameter selection, e.g. poles placement, sampling externally observed coarse-grained and aggregates • CPU utilization, throughput, back- pressure signal • Policy • rule-based • If CPU utilization > 70% and back- pressure then scale up • Action

first needs to establish a virtual circuit (VC) or connection. • CFC uses a credit system to signal the availability of buffer space from receivers to senders. ??? Vasiliki Kalavri | Boston University