Re: [patch] Performance Counters for Linux, v2

From: David Miller
Date: Tue Dec 09 2008 - 06:30:14 EST


From: Ingo Molnar <mingo@xxxxxxx>
Date: Tue, 9 Dec 2008 12:22:25 +0100

>
> * David Miller <davem@xxxxxxxxxxxxx> wrote:
>
> > From: Ingo Molnar <mingo@xxxxxxx>
> > Date: Tue, 9 Dec 2008 12:02:46 +0100
> >
> > >
> > > * stephane eranian <eranian@xxxxxxxxxxxxxx> wrote:
> > >
> > > > > There's also more generic x86 support: all 4 generic PMCs of Nehalem
> > > > > / Core i7 are supported - i've run 4 instances of KernelTop and they
> > > > > used up four separate PMCs.
> > > >
> > > > Core/Atom have 5 counters, Nehalem has 7. Why are you not using all of
> > > > them already?
> > >
> > > no, Nehalem has 4 generic purpose PMCs and 3 fixed-purpose PMCs (7
> > > total),
> > ...
> > > Saying that it has 7 is misleading.
> >
> > Even you just did.
>
> which portion of my point stressing the general purpose attribute was
> unclear to you?

I'm just teasing you because you picked a trite point from stephane's
email instead of the meat later on, which I would have found more
interesting to hear you comment on.
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