On Nov 14, 2013, at 17:49, "Paul B. Henson" <[email protected]> wrote:
>> From: [email protected] [mailto:[email protected]] >> Sent: Wednesday, November 13, 2013 10:44 PM >> >> CPUPM can be independent of autopm, so if you desire CPUPM and not disk >> PM, setting autopm to 'disable' is correct (note, autoS3 is only relevant > > Well, my new draft is: > > autopm disable > S3-support disable > cpupm enable event-mode > cpu_deep_idle enable > > Which I think is doing what I want. Unless there is some other component > that would be willing to go into power savings mode other than the disks. > >> Also, you *can* specify different PM capabilities for different disks. >> Multi-terabyte drives are cheap, and could serve as the backup media. >> There could well be value of having backup disks spindown, but keep the OS >> disks always-on (you would have to enable autopm for this action, though). > > For this box, the only disks are either the production OS or the production > storage, but I could see that being useful for some type of online backup > box that is only accessed non-interactively once a day or so. > >> Lastly, powertop(1m) can be used to see how well CPUPM is working for >> you. > > Oooh, cool, I did not realize illumos included powertop. Looks like with the > above config on an idle box the majority of CPU time is in C3 and the > P-state is exclusively the lowest frequency. I'll have to run that again > once I get some load going. > > >> It may be more than you might think. The backlight on flat panels is >> the biggest draw, and may not be trivial. A monitor rendering black will > > Oh, it doesn't actually have a monitor attached. The box physically has a > VGA port, but the only way I've ever looked at the actual "graphics console" > is via the remote KVM app, which I only used when I was initially building > it. Serial consoles are much nicer for servers :), the only annoying lack is > that there is no way in the supermicro bios to select an alternate boot > device via the serial console. You can get into setup, but they haven't > mapped anything to pull up the boot menu :(. > > Thanks much. > Just out of curiosity, how big is this box (how many sockets/chips and how much memory)? Rafael ------------------------------------------- illumos-discuss Archives: https://www.listbox.com/member/archive/182180/=now RSS Feed: https://www.listbox.com/member/archive/rss/182180/21175430-2e6923be Modify Your Subscription: https://www.listbox.com/member/?member_id=21175430&id_secret=21175430-6a77cda4 Powered by Listbox: http://www.listbox.com
