From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Sat, 20 Jan 2001 18:05:12 +1100 (EST) From: Rik van Riel Subject: Re: [RFC] 2-pointer PTE chaining idea In-Reply-To: <14953.8856.982405.328564@pizda.ninka.net> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org Return-Path: To: "David S. Miller" Cc: Linus Torvalds , linux-mm@kvack.org, "Stephen C. Tweedie" , Matthew Dillon List-ID: On Fri, 19 Jan 2001, David S. Miller wrote: > Linus Torvalds writes: > > - DO NOT WASTE TIME IF YOU HAVE MEMORY! [snip] > > This, btw, also implies: don't make the page tables more complex. > > I have to concur. > Basically, that would leave us with the issue of choosing anonymous > pages to tap out correctly. I see nothing that prevents our page > table scanning from being fundamentally unable to do quite well in > this area. I agree with this. However, having more uniform page aging could lead to better page replacement and this pte chaining thing is something I'd still like to try. ;) If it turns out to be a win (with no measurable losses) I may even submit a patch, but if it turns out to be a loss I'll just drop the idea... regards, Rik -- Virtual memory is like a game you can't win; However, without VM there's truly nothing to lose... http://www.surriel.com/ http://www.conectiva.com/ http://distro.conectiva.com.br/ -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux.eu.org/Linux-MM/