Comment by legerdemain

  > As engineers we're measuring everything, all the time right?

Is this mostly a joke? I've written plenty of APIs, but I have never load-tested them in isolation, never had to respond to underperforming latency or throughput metrics, or even face any feedback on software performance. In most cases, I don't know who uses the code I wrote, and no metrics from them ever make it back to me personally. For exactly 95.2% of what I've delivered, I couldn't tell you that I improved Foo by Bar units even if you held a gun to my head.

This is after years of delivering LOB software to clients in banking, manufacturing, and oil & gas industries.