Messages in this thread | | | Date | Mon, 8 Apr 2002 11:57:17 +0200 | From | Pavel Machek <> | Subject | Re: faster boots? |
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Hi! > Richard Gooch wrote: > > > > But I *want* to write while the drive is spun down. And leave it spun > > down until the system is RAM starved (or some threshold is reached). > > > > Yes. The desirable behaviour for laptops is to defer writes > for a very long time, or until the user says "sync". > > Mechanisms need to be put in place so that if there are pending > writes and the disk happens to be spun up for a read, we take > advantage of that spinup to push out the pending writes at > the same time. > > This behaviour should be all be enabled by a special "laptop mode" > switch. > > There's nothing particularly hard in all this... I'll do a 2.5 > version at some stage.
Well, noflushd already seems to work pretty well ;-). But I see kernel support may be required for SCSI. Pavel -- Casualities in World Trade Center: ~3k dead inside the building, cryptography in U.S.A. and free speech in Czech Republic. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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