Phil Knirsch wrote: > 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. See also: [Bug 454582] Tracker bug for over-eager apps that won't let disks spin down there are still some open bugs under that: Bug 454574 - mono writing to filesystem far too frequently Bug 457155 - Tomboy wakes up hard disk frecuently Bug 466601 - wpa_supplicant writing pointless(?) messages to log every 60s Bug 479192 - audit log written whenever cron wakes up, keeps disks spun up > 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. Another one I'll add is powersave for audio hardware; I'll change the kernel default now (meant to do that last week and wandered off some other shiny thing instead). There's some fear that it may cause clicks/pops on some hardware but we can get it in now and find out. -Eric -- fedora-devel-list mailing list fedora-devel-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/fedora-devel-list
