Date: Wed, 4 Feb 2015 08:34:37 -0700 From: Warner Losh <imp@bsdimp.com> To: Ian Smith <smithi@nimnet.asn.au> Cc: PeerCorps Trust Fund <ipc@peercorpstrust.org>, Lars Engels <lars.engels@0x20.net>, freebsd-mobile@freebsd.org Subject: Re: freebsd-mobile Digest, Vol 539, Issue 2 Message-ID: <DAAEE4EF-9CE2-4925-BFF5-BEA1F68F927D@bsdimp.com> In-Reply-To: <20150204225220.K38620@sola.nimnet.asn.au> References: <mailman.105.1422964802.59463.freebsd-mobile@freebsd.org> <54D0CA65.10701@peercorpstrust.org> <20150203145011.GZ41565@e-new.0x20.net> <54D1C9FF.6030905@peercorpstrust.org> <20150204090848.GD41565@e-new.0x20.net> <20150204225220.K38620@sola.nimnet.asn.au>
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> On Feb 4, 2015, at 5:06 AM, Ian Smith <smithi@nimnet.asn.au> 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… Warnerhome | help
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