From: Manfred Spraul <manfred@colorfullife.com>
To: Matthew Wilcox <willy@debian.org>
Cc: "David S. Miller" <davem@redhat.com>,
akpm@digeo.com, linux-arch@vger.kernel.org
Subject: Re: [PATCH] Allow arch override for kmem_bufctl_t
Date: Tue, 18 May 2004 07:04:04 +0200 [thread overview]
Message-ID: <40A99944.8030500@colorfullife.com> (raw)
In-Reply-To: <20040517212528.GY6484@parcelfarce.linux.theplanet.co.uk>
Matthew Wilcox wrote:
>On Mon, May 17, 2004 at 02:16:35PM -0700, David S. Miller wrote:
>
>
>>Just out of curiosity, which arch knowingly has the problem?
>>
>>
>
>I think it's ARM ...
>
>
>
I thought it was sparc and perhaps alpha, but I was wrong: it was a
general comment from Mark Hemment (May 2000):
> Making s_free a short will really hurt performance. So to does short
> bufctls. Don't worry too much about wasting a little memory (internal
> fragmentation) for performance. "shorts" are a performance hit (more
> so on some architectures - Pentium Pros and definetly on true RISC).
--
Manfred
prev parent reply other threads:[~2004-05-18 5:04 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-05-15 12:13 [PATCH] Allow arch override for kmem_bufctl_t Manfred Spraul
2004-05-15 12:24 ` Manfred Spraul
2004-05-17 9:09 ` Andi Kleen
2004-05-17 9:11 ` Geert Uytterhoeven
2004-05-17 11:28 ` Ralf Baechle
2004-05-17 11:39 ` Ivan Kokshaysky
2004-05-17 12:39 ` Andi Kleen
2004-05-17 18:22 ` David Mosberger
2004-05-17 21:16 ` David S. Miller
2004-05-17 21:25 ` Matthew Wilcox
2004-05-18 5:04 ` Manfred Spraul [this message]
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