From: Akira Tsukamoto <at541@columbia.edu>
To: Andrew Morton <akpm@digeo.com>
Cc: linux-kernel@vger.kernel.org, Hirokazu Takahashi <taka@valinux.co.jp>
Subject: Re: [PATCH] 2/2 2.5.45 cleanup & add original copy_ro/from_user
Date: Sat, 02 Nov 2002 21:43:23 -0500 [thread overview]
Message-ID: <20021102214117.3797.AT541@columbia.edu> (raw)
In-Reply-To: <3DC415DA.29D22E92@digeo.com>
On Sat, 02 Nov 2002 10:13:46 -0800
Andrew Morton <akpm@digeo.com> mentioned:
> Well you could make it dependent on CONFIG_SLOW_KERNEL ;)
>From my patch, about the speed:
for PIII/4 CPU -> no change. using the same 2.5.45 copy.
for old i386 -> more optimal.
for Athlon -> 2.5.45 does not use unrolled copy for it either.
I am away for a while but I grew up in Japan and just wanted to save
some rooms for a embedded system like below.
http://linux.ascii24.com/linux/news/today/2000/05/22/imageview/images461056.jpg.html
The phisical size(not kernel) is about 5cm*5cm.
Is your copy function suitable in this case?
next prev parent reply other threads:[~2002-11-03 3:37 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-11-02 8:06 Akira Tsukamoto
2002-11-02 10:32 ` Andrew Morton
2002-11-02 11:07 ` Akira Tsukamoto
2002-11-02 18:13 ` Andrew Morton
2002-11-03 2:43 ` Akira Tsukamoto
2002-11-03 4:04 ` Andrew Morton
2002-11-03 2:43 ` Akira Tsukamoto [this message]
2002-11-03 2:57 ` Akira Tsukamoto
2002-11-03 21:24 ` Dave Jones
2002-11-03 22:22 ` Andries Brouwer
[not found] <20021102025838.220E.AT541@columbia.edu.suse.lists.linux.kernel>
[not found] ` <3DC3A9C0.7979C276@digeo.com.suse.lists.linux.kernel>
2002-11-02 10:58 ` Andi Kleen
2002-11-02 11:03 ` Andrew Morton
2002-11-02 16:55 ` Denis Vlasenko
2002-11-02 12:09 ` Andi Kleen
2002-11-02 17:08 ` Denis Vlasenko
2002-11-02 12:23 ` Andi Kleen
2002-11-04 3:36 Akira Tsukamoto
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