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From: William Lee Irwin III <wli@holomorphy.com>
To: Christoph Lameter <clameter@sgi.com>
Cc: akpm@linux-foundation.org, linux-kernel@vger.kernel.org
Subject: Re: Remove constructor from buffer_head
Date: Thu, 3 May 2007 23:35:34 -0700	[thread overview]
Message-ID: <20070504063534.GX19966@holomorphy.com> (raw)
In-Reply-To: <Pine.LNX.4.64.0705032007540.16627@schroedinger.engr.sgi.com>

On Thu, May 03, 2007 at 08:08:41PM -0700, Christoph Lameter wrote:
> Performance tests show a slight improvements in netperf (not a
> strong case for a performance improvement but removing the
> constructor has definitely no negative impact so why keep
> this around?).

Cache effects are not so easily visible. Cache profile results from
more realistic workloads (e.g. major macrobenchmarks) are more
appropriate for gauging this.


-- wli

  parent reply	other threads:[~2007-05-04  6:34 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-05-04  3:08 Christoph Lameter
2007-05-04  3:21 ` Andrew Morton
2007-05-04  3:34   ` Christoph Lameter
2007-05-04  4:37     ` Andrew Morton
2007-05-04  4:34   ` Christoph Lameter
2007-05-04  6:35 ` William Lee Irwin III [this message]
2007-05-04 16:05   ` Christoph Lameter
2007-05-04 20:42 ` Andrew Morton
2007-05-04 21:33   ` Andrew Morton
2007-05-04 23:22     ` Andi Kleen
2007-05-04 23:45       ` Andrew Morton
2007-05-05  9:31         ` Andi Kleen
2007-05-13 20:38           ` oprofile broken in 2.6.21 SMP (was Re: Remove constructor from buffer_head) Benjamin LaHaise
2007-05-15  3:12             ` Andrew Morton
2007-05-04 21:42   ` Remove constructor from buffer_head Christoph Lameter
2007-05-04 21:47     ` Andrew Morton
2007-05-04 21:52   ` Chuck Ebbert

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