From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <001a01c48abe$0fccb5f0$0301a8c0@chuck2> From: "Mark Chambers" To: "Dan Malek" Cc: "Embedded Linux PPC list" , "Robert P. J. Day" References: <000f01c48a95$e18e5c20$0301a8c0@chuck2> Subject: Re: value of XIP? and whether it works with 2.6 kernel? Date: Wed, 25 Aug 2004 12:10:31 -0400 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linuxppc-embedded@lists.linuxppc.org List-Id: > > 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/