Re: runaway intr problems: powerd and/or hw.acpi.cpu.cx_lowest related

From: Doug Barton <dougb_at_FreeBSD.org>
Date: Mon, 23 Aug 2010 01:43:13 -0700
On 08/23/2010 01:01, Andriy Gapon wrote:

> Speaking of which you seem to have too many powerd levels.

D'oh!

> What cpufreq drivers are in use on your system?

The only one I have is the cpufreq that's in GENERIC.

> Maybe you'd want to stick to just one of them?
> E.g.:
> http://lists.freebsd.org/pipermail/freebsd-stable/2010-March/055666.html

Ok, so it seems that you're suggesting to disable throttling, so I added 
the following to /boot/loader.conf:

hint.p4tcc.0.disabled="1"
hint.p4tcc.1.disabled="1"
hint.acpi_throttle.0.disabled="1"
hint.acpi_throttle.1.disabled="1"

Not sure the .1.'s are necessary, but I wanted to be thorough. With that 
I get:
dev.cpu.0.freq_levels: 2333/31000 2000/26000 1667/22000 1333/17000 
1000/13000
dev.est.0.freq_settings: 2333/31000 2000/26000 1667/22000 1333/17000 
1000/13000
dev.est.1.freq_settings: 2333/31000 2000/26000 1667/22000 1333/17000 
1000/13000

hopefully that's more in line with what it should be? I'd really like to 
be able to at least use powerd since it does seem to help with heat when 
the system is idle (and by extension, power consumption as well).

Unless you say differently when I get up tomorrow I'll try this 
configuration for a little while and see how it goes.

Doug

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Received on Mon Aug 23 2010 - 06:43:15 UTC

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