Date: Thu, 31 Jan 2002 10:15:23 +0100 From: Stijn Hoop <stijn@win.tue.nl> To: Varshavchick Alexander <alex@metrocom.ru> Cc: questions@freebsd.org Subject: Re: Softupdates Message-ID: <20020131101523.D523@pcwin002.win.tue.nl> In-Reply-To: <Pine.GSO.4.21.0201311119200.29608-100000@apache.metrocom.ru>; from alex@metrocom.ru on Thu, Jan 31, 2002 at 11:45:10AM %2B0300 References: <20020131021257.193F44078@i8k.babbleon.org> <Pine.GSO.4.21.0201311119200.29608-100000@apache.metrocom.ru>
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--7DO5AaGCk89r4vaK Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Jan 31, 2002 at 11:45:10AM +0300, Varshavchick Alexander wrote: > Hi people, >=20 > now after this discussion about softupdates let's try summing up things a > little. We're talking about a productive boxes where risk of losing > data should be minimal (but of cause the speed is also important). There > seems to be the following main conclusions: >=20 > 1. Softupdates by themselves are not too risky; > 2. Write caching should be better turned off in this case; > 3. For the SCSI drives it can be considered enabling write caching. >=20 > But in any case all these trouble cannot be suffered for nothing, we're > hoping to get improvements in speed or anything in the end. So the > question is has any of you any practical experience as for the effect > which was gained? Are the softupdates really that usefull in real life, > and what we lose in speed if we turn off write caching as was suggested? >=20 > So is the speed/reliability ratio worth trying it? Check the archives around 4.3-RELEASE; *a lot* of people were complaining that *BSD was slow on their ATA desktops, at least a lot slower compared to Linux. Add that to the fact that in normal usage where admins don't do a rm -r /very/big/dir right before a shutdown, write caching on hasn't been a problem for most FreeBSD users, made people decide to turn it back on by default. Yes it's more reliable if it's off. If you're paranoid about losing data, by all means make your computer slower. But first of all *check the archives*. Note that this is not directed at you specifically, but at this whole thread, which is a complete rehash of the previous discussion, which was a rehash of the discussion before that, etc. etc. --Stijn --=20 I wish there was a knob on the TV to turn up the intelligence. There's a k= nob called `brightness', but it doesn't work." -- Gallagher --7DO5AaGCk89r4vaK Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.6 (FreeBSD) Comment: For info see http://www.gnupg.org iD8DBQE8WQsrY3r/tLQmfWcRAgc0AJ9T+KGqteQ9j+8zIroLsQ4pyDCZHACeLko1 m2fNK0IswbMGOmN5bbj9EKE= =yk7O -----END PGP SIGNATURE----- --7DO5AaGCk89r4vaK-- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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