Currently, we get the network stats each time per subscriber, causing a high load of cpu when there are several subscribers per container. This change makes the daemon to collect once and publish N times, where N is the number of subscribers per container. Signed-off-by: David Calavera <david.calavera@gmail.com> Upstream-commit: 453473d6a964e58f4a61599bd90d62d0088f0cc2 Component: engine