Continuous profiling is a game changer and once you use it on your production systems you can't do without it.
The first time we got differential flamegraphs working we were so mesmerised that we could finally see exactly what the difference between a low and a high point (like a CPU spike) was, that we clicked around our own code for a good hour.
The first time we got differential flamegraphs working we were so mesmerised that we could finally see exactly what the difference between a low and a high point (like a CPU spike) was, that we clicked around our own code for a good hour.