Rudder

On home page, we compute the compliance in two ways:
- Once by searching all rules non system, getting the compliance of these rules
- Once by getting the reports of all node, filtering out the reports linked to system directive, and getting the compliance out of these

The second one takes 15s in the filtering, and both approach looks really similar. Maybe we are really doing twice the same query, but it seems odd

We need to validate the result of both computation, to check that there are indeed similar or dissimilar, and then merge them if necessary

Also, getting the node last run is not batched, so we are doing one big query that is probably memory bound (and too intensive on the db)