Bill Nottingham wrote:
Phil Knirsch (pknirsch@xxxxxxxxxx) said:
In case you're interested in helping make power management better in F11
feel free to participate in any form.
I'd really like to find a way to get all the things listed in Documentation
set up automatically for the user where appropriate - we should have
all this stuff by default.
Bill
Thats a good point Bill.
Of course most of the first points are things that the user just needs
to do himself (power off his machine, choose the right dimension for the
work he's doing etc).
From the pure system ones i know that we at least already use the
ondemand by default as soon as the CPU supports it, so we should be fine
there.
Network card speeds and harddisk spindowns is a bit tricker imo, though
we probably could enable a higher powersave mode for harddisk by default
at least in case a user wants to save power. Some of this is/will be
addressed by the tuned i'm working on which monitors the usage of
network and harddisk devices and dynamically adapts the settings to the
current use.
Laptop mode and a higher value for dirty_writeback_centisecs, there i'm
personally torn a bit myself. I personally do use it on all my machines
(laptop and desktop), but i can understand people who are a bit paranoid
about their data integrity not wanting to have that by default. But i'd
personally be all for going that way.
In regard to relatime from what i've found so far we seem to be doing
that already by default it seems, though i'd like to have that verified.
Then disabling CD-ROM polling is definitely something for the ServerSIG,
but on a default Desktop i think the user experience would suffer if we
would do that by default.
Enabling USB autosuspend looks like a good candidate for being a default
though. I've used it on quite a few Fedora 10 machines around here and
haven't experienced any problems so far, so it seems to have matured
enough by now from what i can see.
Last but not least the dpms off, i think that should definitely be part
of the Desktop screensaver defaults, especially if you look at how much
power a modern LCD display eats when it's only dimmed down to black.
Regards, Phil
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Philipp Knirsch | Tel.: +49-711-96437-470
Team Lead Core Services | Fax.: +49-711-96437-111
Red Hat GmbH | Email: Phil Knirsch <pknirsch@xxxxxxxxxx>
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D-70178 Stuttgart, Germany
Motd: You're only jealous cos the little penguins are talking to me.
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