Re: CVS commit: src

[Valery Ushakov <uwe%stderr.spb.ru@localhost>]

On Fri, Mar 10, 2017 at 13:09:11 +0000, Maxime Villard wrote:

> Module Name:	src
> Committed By:	maxv
> Date:		Fri Mar 10 13:09:11 UTC 2017
> 
> Modified Files:
> 	src/sys/arch/i386/i386: pmc.c
> 	src/sys/arch/x86/include: sysarch.h
> 	src/usr.bin/pmc: pmc.1 pmc.c
> 
> Log Message:
> Switch to per-CPU PMC results, and completely rewrite the pmc(1) tool. Now
> the PMCs are system-wide, fine-grained and more tunable by the user.
> 
> We don't do application tracking, since it would require to store the PMC
> values in mdproc and starting/stopping the counters on each context switch.
> While this doesn't seem to be particularly difficult to achieve, I don't
> think it is really interesting; and if someone really wants to measure
> the performance of an application, they can simply schedctl it to a cpu
> and look at the PMC results for this cpu.

How does that affects the MI pmc(9) API?

-uwe