From: Matti Aarnio <matti.aarnio@zmailer.org>
To: Joe Perches <joe@perches.com>
Cc: Harvey Harrison <harvey.harrison@gmail.com>,
Alexander van Heukelum <heukelum@mailshack.com>,
Alexander van Heukelum <heukelum@fastmail.fm>,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: Alternative implementation of the generic __ffs
Date: Sun, 20 Apr 2008 01:29:11 +0300 [thread overview]
Message-ID: <20080419222911.GJ3700@mea-ext.zmailer.org> (raw)
In-Reply-To: <1208573728.11990.14.camel@localhost>
On Fri, Apr 18, 2008 at 07:55:28PM -0700, Joe Perches wrote:
> On Fri, 2008-04-18 at 18:11 -0700, dean gaudet wrote:
> > have you benchmarked it?
>
> I modified Alexander's benchmark:
> http://lkml.org/lkml/2008/4/18/267
> to include 32 and 64 bit variants called smallest.
>
> On an old ARM:
...
I am curious, why not take the code already in glibc ffs() for ARM ?
That is, if the ffs() is all that important detail in kernel ?
/Matti Aarnio
next prev parent reply other threads:[~2008-04-19 22:29 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-03-31 17:15 [PATCH] x86: generic versions of find_first_(zero_)bit, convert i386 Alexander van Heukelum
2008-03-31 17:22 ` Stephen Hemminger
2008-03-31 19:38 ` Alexander van Heukelum
2008-03-31 21:58 ` Andi Kleen
2008-04-01 8:47 ` Ingo Molnar
2008-04-01 9:46 ` Alexander van Heukelum
2008-04-01 15:41 ` [PATCH] x86: switch x86_64 to generic find_first_bit Alexander van Heukelum
2008-04-01 15:42 ` [PATCH] x86: optimize find_first_bit for small bitmaps Alexander van Heukelum
2008-04-01 15:47 ` [PATCH] x86: remove x86-specific implementations of find_first_bit Alexander van Heukelum
2008-04-03 9:34 ` Alexander van Heukelum
2008-04-04 8:47 ` Ingo Molnar
2008-04-06 17:03 ` [PATCH] x86: generic versions of find_first_(zero_)bit, convert i386 dean gaudet
2008-04-06 18:51 ` Alexander van Heukelum
2008-04-06 20:22 ` dean gaudet
2008-04-07 8:43 ` Ingo Molnar
2008-04-07 10:25 ` Alexander van Heukelum
2008-04-18 20:18 ` Alternative implementation of the generic __ffs Alexander van Heukelum
2008-04-18 23:46 ` dean gaudet
2008-04-19 0:09 ` Harvey Harrison
2008-04-19 0:20 ` dean gaudet
2008-04-19 0:58 ` Joe Perches
2008-04-19 1:04 ` Harvey Harrison
2008-04-19 1:11 ` dean gaudet
2008-04-19 2:55 ` Joe Perches
2008-04-19 4:13 ` dean gaudet
2008-04-19 10:05 ` Mikael Pettersson
2008-04-19 12:10 ` Alexander van Heukelum
2008-04-19 18:17 ` Joe Perches
2008-04-19 20:26 ` Alexander van Heukelum
2008-04-19 22:29 ` Matti Aarnio [this message]
2008-04-20 3:06 ` Joe Perches
2008-04-20 8:42 ` Alexander van Heukelum
2008-04-20 12:31 ` Matti Aarnio
2008-04-21 11:43 ` Alexander van Heukelum
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