On Saturday 18 February 2006 01:18, Kevin Radloff wrote:
> On 2/17/06, Con Kolivas <[email protected]> wrote:
> > Added disabling of swap prefetching when laptop_mode is enabled.
>
> Why bother with this? As someone commented in a previous thread,
> wouldn't it be better to let the laptop_mode script handle it?
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.
Cheers,
Con
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