From: Andrew Morton <akpm@osdl.org>
To: Martin Peschke <mp3@de.ibm.com>
Cc: linux-kernel@vger.kernel.org, ak@suse.de, hch@infradead.org,
arjan@infradead.org, James.Smart@Emulex.Com,
James.Bottomley@SteelEye.com
Subject: Re: [RFC] [Patch 7/8] statistics infrastructure - exploitation prerequisite
Date: Tue, 16 May 2006 11:28:24 -0700 [thread overview]
Message-ID: <20060516112824.39b49563.akpm@osdl.org> (raw)
In-Reply-To: <446A1023.6020108@de.ibm.com>
Martin Peschke <mp3@de.ibm.com> wrote:
>
> need sched_clock for latency statistics
sched_clock() probably isn't suitable for this application. It's a
scheduler thing and has a number of accuracy problems.
But I thought we discussed this last time around? Maybe not.
Maybe you've considered sched_clock()'s drawbacks and you've decided
they're all acceptable. If so, the changelog should have described the
reasoning.
But even if so, sched_clock() isn't something we want to be exporting to
modules.
next prev parent reply other threads:[~2006-05-16 18:25 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-05-16 17:47 Martin Peschke
2006-05-16 18:28 ` Andrew Morton [this message]
2006-05-16 22:36 ` Martin Peschke
2006-05-16 23:03 ` Arnd Bergmann
2006-05-17 1:23 ` Peter Chubb
2006-05-17 1:27 ` Andi Kleen
2006-05-17 1:43 ` Peter Chubb
2006-05-17 2:24 ` Christoph Lameter
2006-05-17 1:13 ` Peter Chubb
2006-05-17 2:32 ` Nick Piggin
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