From: Russ Dill <Russ.Dill@asu.edu>
To: MTD for Linux <linux-mtd@lists.infradead.org>
Subject: Re: HELP
Date: 07 Jun 2001 10:21:06 -0700 [thread overview]
Message-ID: <991934470.27485.0.camel@timmy> (raw)
In-Reply-To: <23825.991907052@redhat.com>
On 07 Jun 2001 10:44:12 +0100, David Woodhouse wrote:
>
> abraham@2d3d.co.za said:
> > why is this necessary though? The kernel docs make it pretty clear
> > that enabling that causes severe performance penalties which I wanted
> > to avoid.
>
> Then fix the kernel docs. :)
I already tried feeding rmk such a patch. The unaligned handly only
impacts performance when there is an unaligned read. So for you, its
good you now know and are working around this. However, some drivers
*cough*jffs2*cough* will make unaligned reads from time to time, but
only rarely. In this case, the handler speeds things up by doing the
access, instead of producing an oops.
next prev parent reply other threads:[~2001-06-07 17:15 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-06-07 9:04 HELP Abraham vd Merwe
2001-06-07 9:35 ` HELP David Woodhouse
2001-06-07 9:43 ` HELP Abraham vd Merwe
2001-06-07 9:44 ` HELP David Woodhouse
2001-06-07 9:47 ` HELP Abraham vd Merwe
2001-06-07 9:48 ` HELP David Woodhouse
2001-06-07 9:51 ` HELP Abraham vd Merwe
2001-06-07 10:16 ` HELP David Woodhouse
2001-06-07 17:21 ` Russ Dill [this message]
2001-06-07 20:01 ` HELP David Woodhouse
2001-06-11 16:04 ` problem with zlib.o Xavier DEBREUIL
2001-06-12 8:14 ` David Woodhouse
2001-06-12 9:19 ` problem with util Xavier DEBREUIL
2001-06-12 11:36 ` unable to mount jffs2 Xavier DEBREUIL
2001-06-12 12:19 ` David Woodhouse
2001-06-12 12:30 ` Xavier DEBREUIL
2001-06-12 12:36 ` Xavier DEBREUIL
2001-06-12 12:35 ` David Woodhouse
2001-06-12 13:56 ` Xavier DEBREUIL
2001-06-12 15:19 ` unable to modify jffs2 Xavier DEBREUIL
2001-06-12 15:31 ` Martin Gadbois
2001-06-12 15:46 ` David Woodhouse
2001-06-12 16:26 ` Xavier DEBREUIL
2001-06-12 16:29 ` David Woodhouse
2001-06-12 16:38 ` Xavier DEBREUIL
2001-06-12 16:43 ` David Woodhouse
2001-06-12 17:21 ` Xavier DEBREUIL
2001-06-12 21:10 ` David Woodhouse
2001-06-07 14:30 ` HELP Nicolas Pitre
2001-06-07 14:23 ` HELP Nicolas Pitre
-- strict thread matches above, loose matches on Subject: below --
2001-11-19 20:48 Help dave
2001-11-20 13:19 ` Help David Woodhouse
2006-04-09 20:47 help amirhosein jahanbekam
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