Date: Mon, 12 Feb 2001 23:48:16 +0000 From: Tony Finch <dot@dotat.at> To: Kevin Oberman <oberman@es.net> Cc: mobile@freebsd.org Subject: Re: Any ideas on keeping the disk spun down on laptop Message-ID: <20010212234816.M35416@hand.dotat.at> In-Reply-To: <20010212211351.F35416@hand.dotat.at> References: <200102112211.f1BMBCL23187@ptavv.es.net> <20010212211351.F35416@hand.dotat.at>
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Tony Finch <dot@dotat.at> wrote: >Kevin Oberman <oberman@es.net> wrote: >> >>Has anyone looked into making update(4) not do any disk IO when there >>have been no changes to metadata? And, is there a way to extend the >>update period? Or am I completely off base in my belief that update(4) >>is the source of the continuing disk accesses. > >There is a simple patch to extend the time between syncer runs: see >PR#21859. I've been running with this for months now and it works >nicely. Regarding the other followups I should probably add that I don't mount my disks noatime and I leave atrun and cron on. The caveat of course is that you risk losing more data in the event of running out of battery power or whatever :-) Tony. -- f.a.n.finch fanf@covalent.net dot@dotat.at GERMAN BIGHT HUMBER: NORTHWEST 4 OR 5, BUT SOUTHWEST 5 IN SOUTH AT FIRST. RAIN AT FIRST. MODERATE BECOMING GOOD. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-mobile" in the body of the message
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