Sent directly to me by accident :). Forward to users@ and CC'ed Francois. ---------- Forwarded message ---------- From: Romick <[email protected]> Date: Tue, Dec 9, 2014 at 7:50 PM Subject: Re: Acer c720 machdep.mwait.CX.[idle, spin] To: Sepherosa Ziehau <[email protected]>
On Tue, Dec 09, 2014 at 04:41:15PM +0800, Sepherosa Ziehau wrote: > On Tue, Dec 9, 2014 at 4:51 AM, Matthew Dillon > <[email protected]> wrote: > > :>> Also suggested in /etc/sysctl.conf: > > :>> > > :>> hw.cpu_mwait_halt=0x44 > > :>> hw.cpu_mwait_spin=0x11 > > :> > > :> Now these sysctls are read-only. Which C-states I must use with > > :> machdep.mwait.CX.[idle, spin]? > > :> > > :> machdep.mwait.CX.supported: C1/0 C1/1 C2/0 C3/0 C3/1 C4/0 C4/1 C4/2 C4/3 > > :> C5/0 C6/0 C7/0 > > : > > :Tried machdep.mwait.CX.idle=AUTODEEP? > > : > > :The sysctl machdep.mwait output should tell you how often each state was > > :entered. > > : > > :Sascha > > > > Yah. The original settings for mwait_halt/spin were manual settings > > before sephe added the cpu autoprobing for the modes. Those are now > > read-only. Now you just set it to AUTODEEP as you have above. > > You could optionally set it to any values listed in > machdep.mwait.CX.supported, e.g. C7/0 > Thanks I'll set C7/0. Unfortunaly I can't change brightness: I think there is no backlight support in our i915 display driver? -- with best reagrds, Yellow Rabbit DragonFly 4.1-DEVELOPMENT x86_64 -- Tomorrow Will Never Die
