Rudder

In the policy generation, we have a big black box in term of time measurement: writeTemplate
This method uses the biggest part of the generation time (more than 80%), but we have little to no detail of which steps are slow

We need to add real timing info in this method, to measure what is slow

First studies give a very interesting result
[2018-05-31 16:15:49] DEBUG policy.generation - Promises move to final position in 11317 ms out of [2018-05-31 16:16:05] DEBUG com.normation.rudder.services.policies.PromiseGenerationServiceImpl - Write node configurations : 41423 ms

The logger used for that is named: policy.generation:

  <logger name="policy.generation" level="debug"/>