“We Built Buggy Software and Using Flame Graphs Found Out How Our Routing Layer Actually Worked.” Not knowing that express.route allows for duplicates or how they are handled seems like a pretty low-level issue they should know about considering the scale they run at.
Horrible title by the author. In reality, should probably be “We Built Buggy Software, and Used Flame Graphs to Help Fix It.”
That said, this is a great way to introduce flame graphs, which are great.
“We Built Buggy Software and Using Flame Graphs Found Out How Our Routing Layer Actually Worked.” Not knowing that express.route allows for duplicates or how they are handled seems like a pretty low-level issue they should know about considering the scale they run at.