From owner-freebsd-hackers Fri Aug 3 22:38:32 2001 Delivered-To: freebsd-hackers@freebsd.org Received: from netbank.com.br (garrincha.netbank.com.br [200.203.199.88]) by hub.freebsd.org (Postfix) with ESMTP id 9927A37B405 for ; Fri, 3 Aug 2001 22:38:29 -0700 (PDT) (envelope-from riel@conectiva.com.br) Received: from surriel.ddts.net (1-072.cwb-adsl.brasiltelecom.net.br [200.193.160.72]) by netbank.com.br (Postfix) with ESMTP id EDDC146805; Sat, 4 Aug 2001 02:37:50 -0300 (BRST) Received: from localhost (fdiuyk@localhost [127.0.0.1]) by surriel.ddts.net (8.11.4/8.11.2) with ESMTP id f745cOR18799; Sat, 4 Aug 2001 02:38:25 -0300 Date: Sat, 4 Aug 2001 02:38:23 -0300 (BRST) From: Rik van Riel X-X-Sender: To: Terry Lambert Cc: Julian Elischer , craig , Subject: Re: How to visit physical memory above 4G? In-Reply-To: <3B6B86F0.EAAA016@mindspring.com> Message-ID: X-spambait: aardvark@kernelnewbies.org X-spammeplease: aardvark@nl.linux.org MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On Fri, 3 Aug 2001, Terry Lambert wrote: > This is a trivial implementation. I'm not very impressed. > Personally, I'm not interested in a huge user space, Maybe not you, but I bet the database and scientific computing people will be interested in having 64 GB memory support in this simple way. > Fully populating both the transmit and receive windows for > 1M connections is 32G of RAM, right there... and it better > be kernel RAM, or you're screwed. Well, you _could_ store this memory in "files", which get mapped and unmapped by the same code the filesystem code uses to access file data in non-kernel-mapped RAM. *runs like hell* 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://distro.conectiva.com/ Send all your spam to aardvark@nl.linux.org (spam digging piggy) To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message