FreeBSD on ThinkPad W530
smithi at nimnet.asn.au
Mon Aug 19 12:32:38 UTC 2013
On Wed, 14 Aug 2013 15:40:58 +0200, vermaden wrote:
> Hi and thanks for reply ;)
> > Yay another FreeBSD laptop user!
> I use FreeBSD for dekstop/workstation for I do not remember how long:
> > Please do this:
> > * join the freebsd-mobile list;* create PRs for each of your problems with -10 above!;
> Here are created PRs:
> stack trace after successfull 'umount /mnt' (SDHC card mounted as msdosfs)
> 3h of work on battery on FreeBSD while 10h on Windows
Hi; I'm only going to address this one, so chopping mercilessly ..
> acpi_ibm module is useless on ThinkPad W530
> x11/xorg does not start if Nvidia Optimus is enabled on
> > * the power utilisation thing is going to be fun to track down - what kind of
> > CPU is in there? Is it a recent Intel? I'm playing around with their tools at the
> > moment; maybe we can look at the power the CPU is consuming and then
> > add on the power from each of the other parts in your laptop until we
> > figure out what's drawing said power
Can't fault the comprensiveness of your PR 181282 :) I did notice:
As a starting point, try following mav@'s excellent Tuning Power guide:
I don't know what the i7 or your BIOS does about C-states, but using C2
and especially if you can get to C3 or equivalent could give a big win;
with other tunings Alexander managed to double battery life (on a C2D)
You said powerd was 'working' but without indication of effectiveness,
such as what CPU speeds correspond to idle/light load/full load etc?
You may want to try tuning its default modes/idle/busy settings, and
measure real power used at different freqs.
I suggest trying the advice there to disable p4tcc and acpi_throttle,
reducing number of P-states considerably. Then 'service powerd stop',
run powerd -v in a console and measure power consumption at various
loads and CPU frequencies. If you have no wattmeter, acpiconf -i0 may
serve as a guide (though you do have to wait a while for changes to be
reflected); for such monitoring (albeit with working acpi_ibm) I use:
smithi on t23% cat ~/bin/t23stat
echo -n "`date` "
sysctl dev.cpu.0.freq dev.cpu.0.cx_usage
sysctl dev.acpi_ibm | egrep 'fan_|thermal'
acpiconf -i0 | egrep 'State|Remain|Present|Volt'
smithi on t23% t23stat
Mon Aug 19 22:09:15 EST 2013 dev.cpu.0.freq: 733
dev.cpu.0.cx_usage: 0.05% 99.94% 0.00% last 529us
dev.acpi_ibm.0.thermal: 47 46 42 -1 -1 -1 29 -1
Remaining capacity: 95%
Remaining time: 2:36
Present rate: 17313 mW
Present voltage: 12236 mV
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