From: "Mark Chambers" <markc@mail.com>
To: "Dan Malek" <dan@embeddededge.com>
Cc: "Embedded Linux PPC list" <linuxppc-embedded@lists.linuxppc.org>,
"Robert P. J. Day" <rpjday@mindspring.com>
Subject: Re: value of XIP? and whether it works with 2.6 kernel?
Date: Wed, 25 Aug 2004 12:10:31 -0400 [thread overview]
Message-ID: <001a01c48abe$0fccb5f0$0301a8c0@chuck2> (raw)
In-Reply-To: FE902A72-F6AB-11D8-918A-003065F9B7DC@embeddededge.com
>
> On Aug 25, 2004, at 7:22 AM, Mark Chambers wrote:
>
> > The main value, I believe, is as part of a rapid boot setup - you can
> > avoid the decompress and copy phase.
>
Dan Malek responded:
> The XIP has little effect on this. Wolfgang hit the important points.
> I originally did XIP on the 8xx many years ago for an embedded
> appliance that was DRAM challenged. It saved a little memory,
> but along with it came the pinned TLB which helped a little with
> performance.
>
I guess I wasn't basing my comment exclusively on 8xx, but thinking
more of the general linux quick boot work being done, as in this
paper from the linux 2004 symposium (see section 4):
http://www.finux.org/Reprints/Reprint-Bird-OLS2004.pdf
So, in other words, maybe XIP will come back again?
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
next prev parent reply other threads:[~2004-08-25 16:10 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-08-24 15:44 value of XIP? and whether it works with 2.6 kernel? Robert P. J. Day
2004-08-25 7:55 ` Wolfgang Denk
2004-08-25 11:22 ` Mark Chambers
2004-08-25 15:32 ` Dan Malek
2004-08-25 16:10 ` Mark Chambers [this message]
2004-08-25 17:01 ` Dan Malek
2004-08-26 1:27 ` David Woodhouse
2004-08-26 3:45 ` Dan Malek
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