From owner-freebsd-hackers Mon Jun 8 22:41:00 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id WAA06062 for freebsd-hackers-outgoing; Mon, 8 Jun 1998 22:41:00 -0700 (PDT) (envelope-from owner-freebsd-hackers@FreeBSD.ORG) Received: from echonyc.com (echonyc.com [198.67.15.2]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id WAA06012 for ; Mon, 8 Jun 1998 22:40:40 -0700 (PDT) (envelope-from benedict@echonyc.com) Received: from localhost (benedict@localhost) by echonyc.com (8.8.7/8.8.7) with SMTP id BAA24191; Tue, 9 Jun 1998 01:40:29 -0400 (EDT) Date: Tue, 9 Jun 1998 01:40:29 -0400 (EDT) From: Snob Art Genre Reply-To: ben@rosengart.com To: Allen Smith cc: Eivind Eklund , hackers@FreeBSD.ORG Subject: Re: Newbie 3 questions. In-Reply-To: <9806082335.ZM20914@beatrice.rutgers.edu> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Mon, 8 Jun 1998, Allen Smith wrote: > Is async necessary/desirable for an MFS, or is it automatic? From the > 4.4BSD book, I know that the 4.4BSD MFS is built just like a FFS, only > using pageable memory space instead of filesystem space. Sync and async refer to policies for when to commit certain writes to disk. MFS lives in RAM, except when it's paged out, and then it's the pager algorithm that determines which pages get written to disk, not the metadata update scheme. So the question doesn't really make sense. Ben "You have your mind on computers, it seems." To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message