From: Benjamin LaHaise <bcrl@redhat.com>
To: "Martin J. Bligh" <mbligh@aracnet.com>
Cc: Andrew Morton <akpm@digeo.com>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: 2.5.68-mm2
Date: Wed, 23 Apr 2003 23:39:54 -0400 [thread overview]
Message-ID: <20030423233954.D9036@redhat.com> (raw)
In-Reply-To: <1565150000.1051134452@flay>; from mbligh@aracnet.com on Wed, Apr 23, 2003 at 02:47:32PM -0700
On Wed, Apr 23, 2003 at 02:47:32PM -0700, Martin J. Bligh wrote:
> The performance improvement was about 25% of systime according to my
> measurements - I don't call that insignificant.
Never, ever use changes in system time as a justification for a patch. We
all know that Linux's user/system time accounting is patently unreliable.
Remember Nyquist? Talk to me about differences in wall clock and your
comments will be more interesting.
-ben
WARNING: multiple messages have this Message-ID (diff)
From: Benjamin LaHaise <bcrl@redhat.com>
To: "Martin J. Bligh" <mbligh@aracnet.com>
Cc: Andrew Morton <akpm@digeo.com>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: 2.5.68-mm2
Date: Wed, 23 Apr 2003 23:39:54 -0400 [thread overview]
Message-ID: <20030423233954.D9036@redhat.com> (raw)
In-Reply-To: <1565150000.1051134452@flay>; from mbligh@aracnet.com on Wed, Apr 23, 2003 at 02:47:32PM -0700
On Wed, Apr 23, 2003 at 02:47:32PM -0700, Martin J. Bligh wrote:
> The performance improvement was about 25% of systime according to my
> measurements - I don't call that insignificant.
Never, ever use changes in system time as a justification for a patch. We
all know that Linux's user/system time accounting is patently unreliable.
Remember Nyquist? Talk to me about differences in wall clock and your
comments will be more interesting.
-ben
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next prev parent reply other threads:[~2003-04-24 3:27 UTC|newest]
Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-04-23 8:20 2.5.68-mm2 Andrew Morton
2003-04-23 8:20 ` 2.5.68-mm2 Andrew Morton
2003-04-23 9:59 ` 2.5.68-mm2 William Lee Irwin III
2003-04-23 9:59 ` 2.5.68-mm2 William Lee Irwin III
2003-04-23 16:50 ` 2.5.68-mm2 Robert Love
2003-04-23 16:50 ` 2.5.68-mm2 Robert Love
2003-04-23 16:57 ` 2.5.68-mm2 Martin J. Bligh
2003-04-23 16:57 ` 2.5.68-mm2 Martin J. Bligh
2003-04-23 17:11 ` 2.5.68-mm2 Robert Love
2003-04-23 17:11 ` 2.5.68-mm2 Robert Love
2003-04-24 9:14 ` 2.5.68-mm2 William Lee Irwin III
2003-04-24 9:14 ` 2.5.68-mm2 William Lee Irwin III
2003-04-23 12:08 ` 2.5.68-mm2 Ed Tomlinson
2003-04-23 12:37 ` 2.5.68-mm2 William Lee Irwin III
2003-04-23 14:25 ` 2.5.68-mm2 Martin J. Bligh
2003-04-23 14:51 ` 2.5.68-mm2 Martin J. Bligh
2003-04-23 14:51 ` 2.5.68-mm2 Martin J. Bligh
2003-04-23 15:14 ` 2.5.68-mm2 Alex Tomas
2003-04-23 15:14 ` 2.5.68-mm2 Alex Tomas
2003-04-23 21:46 ` 2.5.68-mm2 Andrew Morton
2003-04-23 21:46 ` 2.5.68-mm2 Andrew Morton
2003-04-23 21:47 ` 2.5.68-mm2 Martin J. Bligh
2003-04-23 21:47 ` 2.5.68-mm2 Martin J. Bligh
2003-04-24 3:39 ` Benjamin LaHaise [this message]
2003-04-24 3:39 ` 2.5.68-mm2 Benjamin LaHaise
2003-04-24 21:13 ` 2.5.68-mm2 Martin J. Bligh
2003-04-24 21:13 ` 2.5.68-mm2 Martin J. Bligh
2003-04-24 23:13 ` objrmap (was 2.5.68-mm2) Martin J. Bligh
2003-04-24 23:13 ` Martin J. Bligh
2003-04-24 3:36 ` 2.5.68-mm2 Benjamin LaHaise
2003-04-24 3:36 ` 2.5.68-mm2 Benjamin LaHaise
2003-04-24 20:24 ` 2.5.68-mm2 Bill Davidsen
2003-04-24 20:24 ` 2.5.68-mm2 Bill Davidsen
2003-04-24 20:33 ` 2.5.68-mm2 Benjamin LaHaise
2003-04-24 20:33 ` 2.5.68-mm2 Benjamin LaHaise
2003-04-25 17:56 ` 2.5.68-mm2 Bill Davidsen
2003-04-25 17:56 ` 2.5.68-mm2 Bill Davidsen
2003-04-25 18:20 ` 2.5.68-mm2 Randy.Dunlap
2003-04-25 18:20 ` 2.5.68-mm2 Randy.Dunlap
2003-04-25 18:27 ` 2.5.68-mm2 Robert Love
2003-04-25 18:27 ` 2.5.68-mm2 Robert Love
2003-04-25 18:49 ` 2.5.68-mm2 Martin J. Bligh
2003-04-25 18:49 ` 2.5.68-mm2 Martin J. Bligh
2003-04-26 10:34 ` 2.5.68-mm2 Bill Davidsen
2003-04-26 10:34 ` 2.5.68-mm2 Bill Davidsen
2003-04-26 15:34 ` 2.5.68-mm2 Martin J. Bligh
2003-04-26 15:34 ` 2.5.68-mm2 Martin J. Bligh
2003-05-01 6:19 ` [BUG] 2.5.68-mm2 and list.h Alexander Hoogerhuis
2003-05-01 6:19 ` Alexander Hoogerhuis
2003-05-01 6:31 ` Andrew Morton
2003-05-01 6:31 ` Andrew Morton
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