linux-kernel - Re: [PATCH V5 0/13] perf: Intel uncore pmu counting support

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Message-ID: <20120613074412.GB8057@gmail.com>
Date:	Wed, 13 Jun 2012 09:44:12 +0200
From:	Ingo Molnar <mingo@...nel.org>
To:	Andi Kleen <andi@...stfloor.org>
Cc:	"Yan, Zheng" <zheng.z.yan@...el.com>,
	Stephane Eranian <eranian@...gle.com>, a.p.zijlstra@...llo.nl,
	mingo@...e.hu, jolsa@...hat.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH V5 0/13] perf: Intel uncore pmu counting support


* Andi Kleen <andi@...stfloor.org> wrote:

> "Yan, Zheng" <zheng.z.yan@...el.com> writes:
> 
> > Peter suggests keeping the uncore names as they're listed in the intel
> > doc. For Sandybirdge-EP, uncore names are something like: Cbo, iMC, QPI.
> > I think Uncore_Cbo_0 appears better than uncore_Cbo_0
> 
> How about a case insensitive match for the sysfs directories? 
> [...]

That's idiotic, avoidable lookup complexity.

> [...] That can be implemented in user land with nftw(). Since 
> sysfs is all virtual it should not be too expensive, as long 
> as you only walk the pmu parts.
> 
> I think that would be most user friendly.

It would be most idiotic, stop suggesting crap.

Why not rot13 it as well? Could be decoded in user-space as well 
with some helpers. Hey, md5 checksum it too.

Thanks,

	Ingo
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