There was a talk at the recent (quadrennial) DTrace conference from someone at Bloomberg which gives some numbers instructive of what at least some staff in tec

There was a talk at the recent (quadrennial) DTrace conference from someone at Bloomberg which gives some numbers instructive of what at least some staff in tech there do: https://www.joyent.com/about/events/2016/dtrace-conf/videos/dtrace-ustack-performance-improvements https://www.joyent.com/about/events/2016/dtrace-conf/videos/...