On 23.08.2018 18:35, Thor Lancelot Simon wrote: > On Thu, Aug 23, 2018 at 06:25:56PM +0200, Kamil Rytarowski wrote: >> >> As useful I mean the number of commits to the src/ tree. If nothing >> landed, probably nothing was useful. When were the most recent patches >> from gprof or similar? > > This is a plainly bogus criterion. After we integrated DTrace, there > were several periods of a year or more during which there were no > "patches from DTrace or similar". I know, and it was pretty frustrating > to me too, since I paid a considerable amount of money to have it ported > and maintained, and I had to justify that to my boss. > > Should it have, then, been ripped out? It's certainly a lot more complex > than gprof. >
Contrary to gprof (idea from 1988), actually DTrace can be utilized easier on a modern hardware. Probably DTrace is not the final word in BSD and not something I intend to defend - but it's a good solution for now - (FreeBSD already ports/develops a potential replacement eBPF).
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