Messages in this thread |  | | Date | Tue, 12 Sep 2000 20:20:48 +0200 | From | Pavel Machek <> | Subject | Re: Notebook disk spindown |
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Hi!
> > On Sat, 9 Sep 2000 rob@mur.org.uk wrote: > > > Would it be possible to detect when the disk spins up, and do the flush then? > > Yes if you had a continuious polling of power status wrt standby. > > I think the following flushing policy would work almost as well, while > remaining generic: > > - if there's a read that is not handled from the buffer cache, flush > (write) all dirty buffers > - if we need to flush (write) one dirty buffers, flush all others too > > This wouldn't catch cases like an explicit spin-up without data I/O, > but I don't think this is much of a problem in real life.
noflushd works for me. It monitors "read/write" counters in /proc/stat, and if it detects activity, it syncs(). If it detect idle period, it syncs() then spins disk down. Pavel -- I'm pavel@ucw.cz. "In my country we have almost anarchy and I don't care." Panos Katsaloulis describing me w.r.t. patents at discuss@linmodems.org - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/
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