From owner-freebsd-fs Thu Jan 16 08:28:57 1997 Return-Path: Received: (from root@localhost) by freefall.freebsd.org (8.8.4/8.8.4) id IAA28878 for fs-outgoing; Thu, 16 Jan 1997 08:28:57 -0800 (PST) Received: from spitfire.ecsel.psu.edu (qmailr@spitfire.ecsel.psu.edu [146.186.218.51]) by freefall.freebsd.org (8.8.4/8.8.4) with SMTP id IAA28871 for ; Thu, 16 Jan 1997 08:28:50 -0800 (PST) Received: (qmail 27105 invoked by uid 1000); 16 Jan 1997 16:30:55 -0000 Message-ID: <19970116163054.27104.qmail@spitfire.ecsel.psu.edu> To: "K.Jayaram Kumar" cc: fs@freebsd.org Subject: Re: Async I/O In-reply-to: Your message of "Thu, 16 Jan 1997 15:39:34 +0530." <199701161009.AA056189374@dwarpal.in.oracle.com> Date: Thu, 16 Jan 1997 11:30:54 -0500 From: Dan Cross Sender: owner-fs@freebsd.org X-Loop: FreeBSD.org Precedence: bulk > I think FreeBSD doesn't support Async I/O. Is that right ?? Also, is there > any Async I/O simulation library available for FreeBSD ?? FreeBSD does indeed support aynchronous I/O, but I'm curious, by what do you mean asynchronous I/O? It supports both signal-driven asynchronous I/O (most commonly used to/from a socket...) as well as mounting filesystems asynchronously. Since you sent mail to fs@freebsd.org, I assume you are refering to the latter. In order to enable asynchronous I/O on a filesystem, specify the ``-o async'' option to your mount command line, or add the ``async'' keyword to the options field in /etc/fstab. Hope this helps some. - Dan C. [btw- questions@freebsd.org would probably have been a better forum for a question of this nature...]