Date: Wed, 2 Aug 2000 15:10:17 -0700 (PDT) From: Richard Johnson <raj@cisco.com> To: Peter Radcliffe <pir@pir.net> Cc: freebsd-mobile@FreeBSD.ORG Subject: Re: apm disk spindown ? Message-ID: <14728.40009.19467.297089@kitab.cisco.com> In-Reply-To: <20000802140620.F25123@pir.net> References: <20000802140620.F25123@pir.net>
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Peter Radcliffe writes: > Has there been any work on spinning down disks from freebsd during > idleness ? > > My old laptop had a bios setting to spin the disk down, which when set > correctly could save me a reasonable amount of battery life. My new > laptop does not ... When I moved from an AST machine to a Toshiba I found the same problem. I have diffs for an ioctl which allows the user to set a disk idle spindown time and to force spindown as well as diffs for "apm" to add flags "-w" and "-x" respectively. I had some other changes to vfs_subr.c for the syncer but I think Tony Finches latest posted changes there are probably better. Since I've been wanting to incorporate his changes anyway, I'll do that now and create a new set of diffs for the kernel mods, apm mods, etc. Just let me know if you're interested. This is all based on 3.4. /raj To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-mobile" in the body of the message
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