From owner-freebsd-hackers Wed Feb 10 17:01:29 1999 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id RAA21897 for freebsd-hackers-outgoing; Wed, 10 Feb 1999 17:01:29 -0800 (PST) (envelope-from owner-freebsd-hackers@FreeBSD.ORG) Received: from smtp03.primenet.com (smtp03.primenet.com [206.165.6.133]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id RAA21888 for ; Wed, 10 Feb 1999 17:01:25 -0800 (PST) (envelope-from tlambert@usr08.primenet.com) Received: (from daemon@localhost) by smtp03.primenet.com (8.8.8/8.8.8) id SAA01105; Wed, 10 Feb 1999 18:01:19 -0700 (MST) Received: from usr08.primenet.com(206.165.6.208) via SMTP by smtp03.primenet.com, id smtpd001008; Wed Feb 10 18:01:11 1999 Received: (from tlambert@localhost) by usr08.primenet.com (8.8.5/8.8.5) id SAA26933; Wed, 10 Feb 1999 18:00:59 -0700 (MST) From: Terry Lambert Message-Id: <199902110100.SAA26933@usr08.primenet.com> Subject: Re: portability of shm, mmap, pipes and socket IPC To: mike@smith.net.au (Mike Smith) Date: Thu, 11 Feb 1999 01:00:59 +0000 (GMT) Cc: dyson@iquest.net, dg@root.com, tlambert@primenet.com, dillon@apollo.backplane.com, kuku@gilberto.physik.RWTH-Aachen.DE, hackers@FreeBSD.ORG In-Reply-To: <199902102350.PAA01211@dingo.cdrom.com> from "Mike Smith" at Feb 10, 99 03:50:51 pm X-Mailer: ELM [version 2.4 PL25] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG > > DG's statement is accurate. I removed that very artificial > > restriction over 2 yrs ago. There is no reason to use KVA space > > for data that the kernel never needs to see. Correcting that > > deficit was pretty much on my list as soon as I saw that problem > > when FreeBSD made it an official part of the distribution. > > Hmm, so does that mean that the shared memory pages can be paged out? > And if so, should we be removing the SHMMAXPGS kernel option (since our > current shared memory profile is woefully inadequate for most uses)? Man, is this a cool discussion, or what? 8-). Terry Lambert terry@lambert.org --- Any opinions in this posting are my own and not those of my present or previous employers. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message