On Thu, Mar 22, 2012 at 7:26 AM, wrote:
> Kevin Oberman wrote:
>
>> Throttling ... is intended for thermal control, not power
>> management. The power savings will be negligible ...
>
> How can it possibly provide any thermal benefit, if it does not
> reduce power consumption? Is there some sig
Quoting Luigi Rizzo (from Thu, 22 Mar 2012 14:59:46
+0100):
it isn't such a big deal in my opinion. The %efficiency at low
levels is misleading if you don't factor out the 5-10W plateau for
keeping the
PSU alive (fan, ballast, etc.). See for instance
My point is: if you (plural) don't see the
On Thu, Mar 22, 2012 at 10:51 AM, Alexander Leidinger <
alexan...@leidinger.net> wrote:
> Quoting Luigi Rizzo (from Wed, 21 Mar 2012 18:37:28
> +0100):
>
> I guess that the credit for power saving goes mostly to the CPU
>> architects. Powerd only gives second-order savings, and C1 vs. C3
>> is i
Quoting Luigi Rizzo (from Wed, 21 Mar 2012
18:37:28 +0100):
I guess that the credit for power saving goes mostly to the CPU
architects. Powerd only gives second-order savings, and C1 vs. C3
is ineffective, at least for HZ=1000
CPU Power (watts)
freqidle16 threads
>
>If you are trying to reduce power consumption, why are you limiting Cx
>states to C2 (which save little) and not C3 (which will save a LOT of
>power when the CPU is not heavily loaded).
On my previous post I forgot to set kern.hz=100. This change does lower idle
power from 71w to 62w.
With my
Kevin Oberman wrote:
> Throttling ... is intended for thermal control, not power
> management. The power savings will be negligible ...
How can it possibly provide any thermal benefit, if it does not
reduce power consumption? Is there some significant heat source,
other than power consumed, tha
>
>If you are trying to reduce power consumption, why are you limiting Cx
>states to C2 (which save little) and not C3 (which will save a LOT of
>power when the CPU is not heavily loaded).
With my hardware, i5-650, using C3 does not result in lower power consumption
versus C2. Both states draw ex
On Wed, Mar 21, 2012 at 09:32:47AM -0700, Kevin Oberman wrote:
...
> If you are trying to reduce power consumption, why are you limiting Cx
> states to C2 (which save little) and not C3 (which will save a LOT of
> power when the CPU is not heavily loaded).
>
> If it is due to the system hanging, i
2012/3/21 Kevin Oberman :
> If you are trying to reduce power consumption, why are you limiting Cx
> states to C2 (which save little) and not C3 (which will save a LOT of
> power when the CPU is not heavily loaded).
Jumping up on this but I don't know if that's related to his reasons
to not use C3
On Wed, Mar 21, 2012 at 12:41 AM, Matthias Gamsjager
wrote:
> On Wed, Mar 21, 2012 at 1:00 AM, John wrote:
>
>> >my zfs nas has an Asus p5e motherboard (x38 chip) and an intel q9300 (quad
>> >core 2,5Ghz) processor with all the energy save setting enabled in the
>> >bios. Today I connected the po
On Wed, Mar 21, 2012 at 1:00 AM, John wrote:
> >my zfs nas has an Asus p5e motherboard (x38 chip) and an intel q9300 (quad
> >core 2,5Ghz) processor with all the energy save setting enabled in the
> >bios. Today I connected the power cord to a voltcraft energy meter to see
> >how much energy the
>my zfs nas has an Asus p5e motherboard (x38 chip) and an intel q9300 (quad
>core 2,5Ghz) processor with all the energy save setting enabled in the
>bios. Today I connected the power cord to a voltcraft energy meter to see
>how much energy the whole system needs in idle mode.
>
>I found out that wi
On Tue, Mar 20, 2012 at 3:41 PM, Matthias Gamsjager
wrote:
> Hi,
>
> my zfs nas has an Asus p5e motherboard (x38 chip) and an intel q9300 (quad
> core 2,5Ghz) processor with all the energy save setting enabled in the
> bios. Today I connected the power cord to a voltcraft energy meter to see
> how
Hi,
my zfs nas has an Asus p5e motherboard (x38 chip) and an intel q9300 (quad
core 2,5Ghz) processor with all the energy save setting enabled in the
bios. Today I connected the power cord to a voltcraft energy meter to see
how much energy the whole system needs in idle mode.
I found out that wit
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