CPU SpeedStep / EIST / Throttling

Evil Master · 07-02-2009, 08:32 AM

I'm not sure if this already discussed, but is it possible that UT brings the CPU in to idle mode if the hole system idleling?

My System:

MSI Fuzzy 965GM2
Intel 2080 (1.73GHz)
2GB RAM
The Mainboard supports EIST and C1E States and these are enabdled.

If i type: cat /proc/cpu/cpufreq the CPU runs always @ full speed

After my google seach and trying to find what is the problem and find that there no acpi drivers installed.

Any one an idea?

dmorris · 07-02-2009, 08:37 AM

are you sure this is happening?

UT is never truly "idle"

Evil Master · 07-02-2009, 09:36 AM

I`m not realy sure because my linux knowness is about null

But im sure that the CPU don't go in EIST mode while Ideling.
In Windows the CPU make his normal idle and i see the tru the power consumation. In idle its about 21 Watt as i i don't let the CPU throttle the system need 25 Watts. This is also in UT. If its idle it need 25 Watts!

I just truing to install "powernowd" but i get many errors if i type "make"

There must be a way to get the CPU idleling or is it impossible?

P.S.: Sry, 4 my bad engl

dmorris · 07-02-2009, 10:46 AM

Quote:

Originally Posted by Evil Master

There must be a way to get the CPU idleling or is it impossible?

it *might* go idle if you unplug it from the network. that would be kinda pointless though IMO.

Evil Master · 07-03-2009, 03:20 AM

What have the CPU with network to do? Ahm, nothing ? This is not the reason, but nice joke

Google says that it seems to be a possibility with the module "p4-clockmode"

But im not realy sure how to run it.
I tryed with

Quote:

sudo modprobe p4-clockmode

and have no error reporting, so it seems that this module is available.
But, have to perform a restart to load this module?

Can some one give me a detailed "newbie" discription about p4-clockmod!?

pirateghost · 07-03-2009, 07:47 PM

Quote:

Originally Posted by Evil Master

What have the CPU with network to do? Ahm, nothing ? This is not the reason, but nice joke

you obviously dont know enough about untangle or linux in general in order to make an assessment such as this

sky-knight · 07-04-2009, 12:53 AM

Quote:

Originally Posted by pirateghost

you obviously dont know enough about untangle or linux in general in order to make an assessment such as this

Ditto.. the CPU and RAM are heavily utilized by the linux kernel for any packet queuing duties. No real untangle installation will ever trigger CPU idle states... not unless the network traffic was zero...

Evil Master · 07-10-2009, 05:21 AM

But his problem still also if i have disconnected all network cable! So what now?

And if you speak about "heavy utilization" for CPU and RAM, why is the CPU utilization is about 0% if i nothig do (what absolut normal is that is about 0%)?
And now whats about "heavy utilization" ???

I know many about utilization of CPU and im sure that a system is ideling!

If the system not be in idel mode i would be see it with my energy checker!
The system needed in Windows (idel without speedstep) about 25 Watts & Untagle in Idel also!

So you can not telling me that the System is not ideling.. lol

pirateghost · 07-10-2009, 08:12 AM

do you have anything in the rack?

read the first response to your question....

Quote:

Originally Posted by dmorris

UT is never truly "idle"

if you cannot accept that, then go ahead and bork your system up, but dont sit there and yell at us about how YOU THINK it should work.

sgifford · 07-10-2009, 09:40 AM

Perhaps there's some confusion about the different kinds of idle. An entire Untangle box isn't going to go idle like a laptop goes idle, and just shut itself off. But it probably has an idle CPU fairly often, as in ACPI processor state C3. A CPU can go into C3 idle mode with a tiny fraction of a second of inactivity; even when I'm working on my laptop it spends a fair amount of time in C3. PowerTOP is a good tool for seeing this, if your hardware supports enough ACPI for it to work.

@Evil Master, the Untangle kernel seems to be compiled with CONFIG_CPU_IDLE, so if the OS isn't doing anything it should tell the CPU to idle. Unfortunately my Untangle server doesn't seem to have very good hardware ACPI support and I can't find many details about what it's actually doing. PowerTOP gives good details, and there's lots in /proc/acpi/ that might be interesting.

There are probably lots of small optimizations that could save a great deal of power on Untangle servers, I'd be very interested to hear what you find.

Good luck!

07-02-2009, 08:32 AM	#1 (permalink)
Evil Master Untanglit Join Date: Aug 2008 Posts: 13	CPU SpeedStep / EIST / Throttling I'm not sure if this already discussed, but is it possible that UT brings the CPU in to idle mode if the hole system idleling? My System: MSI Fuzzy 965GM2 Intel 2080 (1.73GHz) 2GB RAM The Mainboard supports EIST and C1E States and these are enabdled. If i type: cat /proc/cpu/cpufreq the CPU runs always @ full speed After my google seach and trying to find what is the problem and find that there no acpi drivers installed. Any one an idea?

07-02-2009, 08:37 AM	#2 (permalink)
dmorris Untangle Junkie Join Date: Nov 2006 Location: San Mateo, CA URLs submitted: 10 Posts: 5,417	are you sure this is happening? UT is never truly "idle" __________________

07-02-2009, 09:36 AM	#3 (permalink)
Evil Master Untanglit Join Date: Aug 2008 Posts: 13	I`m not realy sure because my linux knowness is about null But im sure that the CPU don't go in EIST mode while Ideling. In Windows the CPU make his normal idle and i see the tru the power consumation. In idle its about 21 Watt as i i don't let the CPU throttle the system need 25 Watts. This is also in UT. If its idle it need 25 Watts! I just truing to install "powernowd" but i get many errors if i type "make" There must be a way to get the CPU idleling or is it impossible? P.S.: Sry, 4 my bad engl

07-10-2009, 05:21 AM	#8 (permalink)
Evil Master Untanglit Join Date: Aug 2008 Posts: 13	But his problem still also if i have disconnected all network cable! So what now? And if you speak about "heavy utilization" for CPU and RAM, why is the CPU utilization is about 0% if i nothig do (what absolut normal is that is about 0%)? And now whats about "heavy utilization" ??? I know many about utilization of CPU and im sure that a system is ideling! If the system not be in idel mode i would be see it with my energy checker! The system needed in Windows (idel without speedstep) about 25 Watts & Untagle in Idel also! So you can not telling me that the System is not ideling.. lol

07-10-2009, 09:40 AM	#10 (permalink)
sgifford Untangler Join Date: Dec 2008 Location: Flint, MI Posts: 64	Perhaps there's some confusion about the different kinds of idle. An entire Untangle box isn't going to go idle like a laptop goes idle, and just shut itself off. But it probably has an idle CPU fairly often, as in ACPI processor state C3. A CPU can go into C3 idle mode with a tiny fraction of a second of inactivity; even when I'm working on my laptop it spends a fair amount of time in C3. PowerTOP is a good tool for seeing this, if your hardware supports enough ACPI for it to work. @Evil Master, the Untangle kernel seems to be compiled with CONFIG_CPU_IDLE, so if the OS isn't doing anything it should tell the CPU to idle. Unfortunately my Untangle server doesn't seem to have very good hardware ACPI support and I can't find many details about what it's actually doing. PowerTOP gives good details, and there's lots in /proc/acpi/ that might be interesting. There are probably lots of small optimizations that could save a great deal of power on Untangle servers, I'd be very interested to hear what you find. Good luck!