On 09/14/2017 04:22 AM, Hans de Goede wrote: > Hi All, > > My next project for Red Hat is to work on improving Linux laptop battery > life. > Part of the (hopefully) low hanging fruit here is using kernel tunables to > enable more runtime powermanagement. My first target here is SATA Link > Power > Management (LPM) which, as Matthew Garrett blogged about 2 years ago: > https://mjg59.dreamwidth.org/34868.html > can lead to a significant improvement in battery life. > > There is only one small problem, there have been some reports that some > disks/SSDs don't play well with Linux' min_power LPM policy and that this > may lead to system crashes and even data corruption. > > As such I've written a new LPM policy, which matches the power-management > defaults from the Intel RST Windows drivers. Since it mimicks Windows, > this new policy will hopefully not hit any SSD firmware bugs like min_power > sometimes does. > > So now I'm looking for people with a laptop with a SATA SSD or HDD to help > me test this to make sure this won't cause any issues when we enable this > by default for F28, for more details and test instructions see: > > https://hansdegoede.livejournal.com/18412.html Hey Hans. I had marked this to try and do to help gather info, but things have been busy and I haven't ever gotten to it. I thought before I did I might ask if you already have the info you were looking for since it's been over a month now. How have reports been? Is it perhaps time to enable this in rawhide? kevin
Attachment:
signature.asc
Description: OpenPGP digital signature
_______________________________________________ devel mailing list -- devel@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to devel-leave@xxxxxxxxxxxxxxxxxxxxxxx
