From: Hugh Dickins <hugh@veritas.com>
To: Lee Revell <rlrevell@joe-job.com>
Cc: Ingo Molnar <mingo@elte.hu>,
Nick Piggin <nickpiggin@yahoo.com.au>,
Andrew Morton <akpm@osdl.org>,
linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: More latency regressions with 2.6.11-rc4-RT-V0.7.39-02
Date: Fri, 25 Feb 2005 05:58:19 +0000 (GMT) [thread overview]
Message-ID: <Pine.LNX.4.61.0502250554420.15862@goblin.wat.veritas.com> (raw)
In-Reply-To: <1109302249.7807.1.camel@krustophenia.net>
On Thu, 24 Feb 2005, Lee Revell wrote:
> On Thu, 2005-02-24 at 08:26 +0000, Hugh Dickins wrote:
> >
> > If we'd got to it earlier, yes. But 2.6.11 looks to be just a day or
> > two away, and we've no idea why zap_pte_range or clear_page_range
> > would have reverted. Nor have we heard from Ingo yet.
>
> It's also not clear that the patch completely fixes the copy_pte_range
> latency. This trace is from the Athlon XP.
Then we need Ingo to investigate and explain all these reversions.
I'm not _blaming_ Ingo for them, but I'm not familiar with his patches
nor with deciphering latency traces - he's the magician around here.
Hugh
next prev parent reply other threads:[~2005-02-25 5:59 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-02-23 18:07 Lee Revell
2005-02-23 19:16 ` Hugh Dickins
2005-02-23 19:36 ` Lee Revell
2005-02-23 20:06 ` Hugh Dickins
2005-02-23 20:10 ` Lee Revell
2005-02-23 20:30 ` Lee Revell
2005-02-23 21:03 ` Hugh Dickins
2005-02-23 22:14 ` Lee Revell
2005-02-23 23:52 ` PPC RT Patch john cooper
2005-02-24 4:20 ` Frank Rowand
2005-02-24 13:56 ` john cooper
2005-02-23 23:27 ` More latency regressions with 2.6.11-rc4-RT-V0.7.39-02 Nick Piggin
2005-02-24 1:03 ` Lee Revell
2005-02-24 1:29 ` Nick Piggin
2005-02-24 2:24 ` Lee Revell
2005-02-24 2:41 ` Nick Piggin
2005-02-24 3:03 ` Lee Revell
2005-02-23 20:53 ` Hugh Dickins
2005-02-23 22:13 ` Lee Revell
2005-02-24 4:56 ` Hugh Dickins
2005-02-24 6:32 ` Lee Revell
2005-02-24 8:26 ` Hugh Dickins
2005-02-25 3:30 ` Lee Revell
2005-02-25 5:58 ` Hugh Dickins [this message]
2005-02-25 15:02 ` Lee Revell
2005-02-23 19:52 ` Lee Revell
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