From: peterz@infradead.org (Peter Zijlstra)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH/RFC v1 0/2] Human readable performance event description in sysfs
Date: Wed, 20 Jan 2010 15:26:49 +0100 [thread overview]
Message-ID: <1263997609.4283.1067.camel@laptop> (raw)
In-Reply-To: <1263996979.4283.1066.camel@laptop>
On Wed, 2010-01-20 at 15:16 +0100, Peter Zijlstra wrote:
> 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.
And then there is the simple matter of knowing what kind of box it is
without having to resort to a screwdriver or worse.
next prev parent reply other threads:[~2010-01-20 14:26 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-01-20 9:11 [PATCH/RFC v1 0/2] Human readable performance event description in sysfs Tomasz Fujak
2010-01-20 9:11 ` [PATCH v1 1/2] perfevent: Add performance event structure definition and 'extevents' sysfs entry Tomasz Fujak
2010-01-20 9:11 ` [PATCH v1 2/2] [ARM] perfevent: Event description list for ARMv6, Cortex-A8 and Cortex-A9 exported Tomasz Fujak
2010-01-20 9:16 ` [PATCH/RFC v1 0/2] Human readable performance event description in sysfs Peter Zijlstra
2010-01-20 9:46 ` Tomasz Fujak
2010-01-20 9:57 ` Michał Nazarewicz
2010-01-20 13:31 ` Jamie Iles
2010-01-20 13:39 ` Peter Zijlstra
2010-01-20 13:55 ` Russell King - ARM Linux
2010-01-20 14:01 ` Peter Zijlstra
2010-01-20 14:09 ` Michał Nazarewicz
2010-01-20 14:16 ` Peter Zijlstra
2010-01-20 14:26 ` Peter Zijlstra [this message]
2010-01-20 14:45 ` Russell King - ARM Linux
2010-01-20 14:54 ` Michał Nazarewicz
2010-01-20 14:41 ` Russell King - ARM Linux
2010-01-20 15:03 ` Jamie Iles
2010-01-20 15:42 ` Russell King - ARM Linux
2010-01-20 16:18 ` Jamie Iles
2010-01-20 16:26 ` Jamie Lokier
2010-01-20 16:35 ` Russell King - ARM Linux
2010-01-20 9:57 ` Russell King - ARM Linux
2010-01-20 10:21 ` Tomasz Fujak
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