linux-kernel - Re: [RFC 4/5] x86, perf: implements lwp-perf-integration (rc1)

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Date:	Fri, 23 Dec 2011 11:53:57 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Joerg Roedel <joro@...tes.org>
Cc:	Avi Kivity <avi@...hat.com>,
	Robert Richter <robert.richter@....com>,
	Benjamin Block <bebl@...eta.org>,
	Hans Rosenfeld <hans.rosenfeld@....com>, hpa@...or.com,
	tglx@...utronix.de, suresh.b.siddha@...el.com, eranian@...gle.com,
	brgerst@...il.com, Andreas.Herrmann3@....com, x86@...nel.org,
	linux-kernel@...r.kernel.org,
	Benjamin Block <benjamin.block@....com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [RFC 4/5] x86, perf: implements lwp-perf-integration (rc1)


* Joerg Roedel <joro@...tes.org> wrote:

> On Wed, Dec 21, 2011 at 02:22:33PM +0100, Ingo Molnar wrote:
> > 
> > * Avi Kivity <avi@...hat.com> wrote:
> > > I hate to re-enter this thread, but this "niche use case" is 
> > > exactly what LWP is designed for. [...]
> > 
> > It's not the only usecase that it can be used in, and that is 
> > what matters to me.
> 
> The really sad thing about it is, that this only matters to 
> you. [...]

What the hell are you talking about? Precise, skid-free profiles 
matter to pretty much *every* single developer profiling 
user-space code on AMD CPUs. That you are not representing them 
properly in this thread qualifies you, not me.

Thanks,

	Ingo
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