Milliseconds in the log

I am asking for a way to have milliseconds written in home-assistant.log. It should probably be optional, via setting for the logger component. This will make the task of tracking issues with delays in switching on/off light and such much easier.
The timestamp 2019-01-02 11:23:39 would change to 2019-01-02 11:23:39.532 in the log.

Bump… I’m currently facing latency issues with MQTT and automation. It would be helpful to get logs with milliseconds time so I can spot at which point latency is introduced.

Bump from almost 4 years into the future. This feature is still missing!

Adding a further bump to this. Whole seconds may suit most tasks, but it is clearly not helpful to see 6 events all happening with the timestamp and knowing they are unlikely to be simultaneous, yet not being able to see how far apart they are.

I wonder even if the 6 events actually happened in the displayed log sequence. Without milliseconds and inside knowledge of how the log works, it’s impossible to be sure. If any kind of time sorting is done before creating the log, the log might not reflect the true sequence of events.