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Re: Too many PMC implementations



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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