Messages in this thread | | | Date | Fri, 17 Feb 2006 09:53:09 -0500 | From | Kevin Radloff <> | Subject | Re: [ck] [PATCH] mm: implement swap prefetching (v26) |
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On 2/17/06, Con Kolivas <kernel@kolivas.org> wrote: > The discussion was about what size to make the swap prefetching. Since the > size is not user tunable any more that is not the case. I had an offlist > discussion with Bart Samwel about it and basically if your drive spins down > at 5 seconds (which is what commonly happens with laptop mode) you will never > have an opportunity to prefetch. This means swap prefetch will basically > always spin up the drive nullifying laptop mode. On balance if you care about > power more than anything to actually set laptop mode I suspect you wont want > prefetch using any more power.
Ahh, that's certainly a valid point. Although, it could be said that since the laptop mode script allows you to set a great number of thing is a great number of ways to achieve your vision of low power mode, the effectiveness may actually vary. But I don't comprehend your definition of "idle" in the patch anyway, so I won't bother even trying to discuss it. ;)
-- Kevin 'radsaq' Radloff radsaq@gmail.com http://thesaq.com/ - 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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