Re: freebsd-mobile Digest, Vol 539, Issue 2
Warner Losh <[email protected]>
| Newsgroups | gmane.os.freebsd.devel.mobile |
|---|---|
| Message-ID | <[email protected]> |
> On Feb 4, 2015, at 5:06 AM, Ian Smith <[email protected]> wrote: > > On Wed, 4 Feb 2015 10:08:48 +0100, Lars Engels wrote: >> On Wed, Feb 04, 2015 at 09:27:59AM +0200, PeerCorps Trust Fund wrote: >>> Hi Lars, >>> >>> Would you mind sharing what you are using for your powerd settings? >> >> Sure. I followed the power saving tips from >> https://wiki.freebsd.org/TuningPowerConsumption >> and additionally run powerd with >> >> powerd_flags="-a hiadaptive -b hiadaptive" > > Lars, are you running that with p4tcc and acpi_throttle both disabled? > > That is, what says `sysctl dev.cpu.0.freq_levels`? > > On my X200 it's '2401/35000 2400/35000 1600/15000 800/12000' and I found > hiadaptive rather aggressive, where adaptive works fine for my use - but > of course everybody's use is different :) > > powerd_flags="-a adp -b adp -i 70 -r 90" The X+1 number (in this case 2401) is the turbo-mode speed. If you use X, it disables the Turbo mode which causes the CPU to run faster until it gets too hot. On my T400, I found that if I limit powerd to X instead of X+1, I have fewer heat related issues when I’m doing things like building a kernel… Warner _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-mobile To unsubscribe, send any mail to "[email protected]"