I can see the logic - if you have a service that only takes GPS co-ordinates and dumps them into a database, and it's underperforming then my first thought woul

I can see the logic - if you have a service that only takes GPS co-ordinates and dumps them into a database, and it's underperforming then my first thought would also have been "why is my DB insert slow?" instead of "what part of my service is slow?" (in fact I'd have probably ditched the DB insert and written a console.log() which likely would've turned up the problem). These sort of educated guesses serve me well most of the time and take a short period of time to verify - if the guess is wrong we can look in-depth using whatever tools are available safe in the knowledge that not much time was wasted Speaking of tooling, is there much available for nodejs that would allow this sort of investigation into performance, or debugging line by line?