Date: Fri, 21 Sep 2001 10:26:03 -0700 (PDT) From: Matt Dillon <dillon@earth.backplane.com> To: j mckitrick <jcm@freebsd-uk.eu.org> Cc: Mike Meyer <mwm@mired.org>, "Daniel O'Connor" <doconnor@gsoft.com.au>, Kevin Oberman <oberman@es.net>, stable@freebsd.org Subject: Re: RE: hw.ata.wc && hw.ata.tags && softupdates short question Message-ID: <200109211726.f8LHQ3h70907@earth.backplane.com> References: <XFMail.20010921121832.doconnor@gsoft.com.au> <200109210329.f8L3TGR30860@ptavv.es.net> <20010920211704.C7820@gateway.bogus> <15274.48864.994229.51687@guru.mired.org> <200109210549.f8L5n6r67664@earth.backplane.com> <20010921122805.A78591@dogma.freebsd-uk.eu.org>
next in thread | previous in thread | raw e-mail | index | archive | help
:So, to boil everything down, I have 1 question:
:
:On a workstation LAPTOP (IDE, low load, etc), does it make more sense to use
:softupdates, write caching, or both?
:
:jm
Write caching is turned on by default in 4.4, so all you need to mess
with is softupdates. In a laptop environment, softupdates will not
realistically be any more or less reliable with write caching turned
on or off.
The issue with softupdates, regardless of whether write caching is
turned on or off, is that softupdates can delay I/O by 30+ seconds.
If your laptop crashes you can potentially lose more work with softupdates
turned on verses if it is turned off.
For myself, I turn on softupdates on my laptop.
-Matt
To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-stable" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200109211726.f8LHQ3h70907>