RFC: Changing default filesystem parameters for power management reasons
Pádraig Brady
P at draigBrady.com
Thu Nov 27 16:16:03 UTC 2008
Matthew Garrett wrote:
> I'd like F11 to be more useful for disk power management. This involves
> tuning various parameters in order to reduce disk access.
>
> The first is relatime.
> The second is to increase the value of dirty_writeback_centisecs.
> Thirdly, I'd like to enable laptop mode by default.
Does the kernel export whether dev is an SSD.
If so, it would allow us to do a different combination of the above.
Generally userspace should do lots of things
differently/more efficiently if it knows a dev is an SSD.
Pádraig.
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