Date: Mon, 17 Apr 2000 06:27:40 -0500 (CDT) From: Ishmael <ishmael@tranquility.net> To: Rasmus Skaarup <rasmus@gal.dk> Cc: freebsd-questions@FreeBSD.ORG Subject: Re: disc io - sync and async Message-ID: <Pine.BSF.4.21.0004170624410.6194-100000@ppp-port1-59.tranquility.net> In-Reply-To: <Pine.BSF.4.21.0004171300150.10236-100000@skaarup.org>
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> > > - Why does a simple 'mount' command tell me that both sync and async reads > > > and writes are being performed on me FreeBSD box? > > > > Because it looks cool? :) > > If async operations are performed anyhow, why don't we just mount the > drives async from the beginning. If FreeBSD chooses to mount drives in > sync or 'non-async' mode as you say, to increase integrity, and async > operations are performed anyway this doesn't help one bit. You still have > problems with integrity, and the drives will just be slower.. I think if i've read everything here in this thread, he meant that FreeBSD by default mounts drives 'non-async' which means all meta-data is written sync (meaning no caching), while all other data is writen async. This gives a combination of speed and integrity. Jeremy To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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