Date: Tue, 9 Jun 1998 11:49:27 -0400 From: Matthew Hunt <mph@pobox.com> To: Nick Hibma <nick.hibma@jrc.it>, FreeBSD hackers mailing list <hackers@FreeBSD.ORG> Subject: Re: Newbie 3 questions. (fwd) Message-ID: <19980609114927.A27109@mstar.astro.psu.edu> In-Reply-To: <Pine.GSO.3.95q.980609164808.24774D-100000@elect8>; from Nick Hibma on Tue, Jun 09, 1998 at 04:48:13PM %2B0200 References: <Pine.GSO.3.95q.980609164808.24774D-100000@elect8>
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On Tue, Jun 09, 1998 at 04:48:13PM +0200, Nick Hibma wrote: > > No, you mean "noasync". > > 2.2.6 uses sync. Tried it yesterday. "sync" and "noasync" are different, by my reading of "man mount". I think "sync" causes all I/O to be done synchronously, while "noasync" only causes synchronous metadata I/O. More evidence that they are different: flarn:~# mount | grep /var /dev/wd0s1e on /var (local) flarn:~# mount -u -o async /var flarn:~# mount | grep /var /dev/wd0s1e on /var (asynchronous, local) flarn:~# mount -u -o sync /var flarn:~# mount | grep /var /dev/wd0s1e on /var (local, synchronous) flarn:~# mount -u -o nosync /var flarn:~# mount | grep /var /dev/wd0s1e on /var (local) -- Matthew Hunt <mph@pobox.com> * Stay close to the Vorlon. http://www.pobox.com/~mph/pgp.key for PGP public key 0x67203349. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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