From mboxrd@z Thu Jan  1 00:00:00 1970
From: peterz@infradead.org (Peter Zijlstra)
Date: Wed, 20 Jan 2010 15:16:19 +0100
Subject: [PATCH/RFC v1 0/2] Human readable performance event
	description in sysfs
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On Wed, 2010-01-20 at 15:09 +0100, Micha? Nazarewicz wrote:
> On Wed, 20 Jan 2010 15:01:20 +0100, Peter Zijlstra <peterz@infradead.org> wrote:
> > It seems to me userspace might care about the exact platform they're
> > running on.
> 
> In my humble opinion, user space should never care about platform it's
> running on.  Interfaces provided by kernel should suffice to implement
> abstraction layer between user space and hardware.  If we abandon that
> we're back in DOS times.  But hey, again, that's just my opinion.

Well, you're completely right. But the often sad reality is that perfect
abstraction is either impossible or prohibitively expensive.

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Subject: Re: [PATCH/RFC v1 0/2] Human readable performance event
 description in sysfs
From: Peter Zijlstra <peterz@infradead.org>
To: =?UTF-8?Q?Micha=C5=82?= Nazarewicz <m.nazarewicz@samsung.com>
Cc: Russell King - ARM Linux <linux@arm.linux.org.uk>,
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Date: Wed, 20 Jan 2010 15:16:19 +0100
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On Wed, 2010-01-20 at 15:09 +0100, Michał Nazarewicz wrote:
> On Wed, 20 Jan 2010 15:01:20 +0100, Peter Zijlstra <peterz@infradead.org> wrote:
> > It seems to me userspace might care about the exact platform they're
> > running on.
> 
> In my humble opinion, user space should never care about platform it's
> running on.  Interfaces provided by kernel should suffice to implement
> abstraction layer between user space and hardware.  If we abandon that
> we're back in DOS times.  But hey, again, that's just my opinion.

Well, you're completely right. But the often sad reality is that perfect
abstraction is either impossible or prohibitively expensive.