Problem when using GK with AMD64 Cool&Quiet

[klumy]

Hello,

I have a problem when using GK in connection with a A64 CPu with activated C&Q.

If GK encodes a video, my CPU A64 3000+ just run with 1000MHz as it would run on IDLE mode. I have to deactivate C&Q by my own, so that the CPu auto. runs at 2000MHz.

Maybe it would help if GK auto. set a higher process priority if it encodes. So the AMD CPU driver regognice this higher CPu usage and will tact the CPu at full 3000+. On other applications like LAME MP3 encoding C6C works fine.

[len0x]

what is exactly C&Q? All CPUIdle-like applications should have a setting to disable itself when a specific application is running...
(or is it hardware thing?)

[klumy]

C6Q (Cool & Quiet) is managed by an AMD Windows driver.

IF C&Q is active and the CPU usage is not so high, C&Q will throttle the Cpu so it consumes less energy. normally it works great, but in certain applications it doesn work like in GK.

For this reason encoding videos takes much slower because the CPU is trottle down through C&Q.

But in Games C&Q works perfectly.

[klumy]

C6Q (Cool & Quiet) is managed by an AMD Windows driver.

IF C&Q is active and the CPU usage is not so high, C&Q will throttle the Cpu so it consumes less energy. normally it works great, but in certain applications it doesn work like in GK.

For this reason encoding videos takes much slower because the CPU is trottle down through C&Q.

But in Games C&Q works perfectly.

[len0x]

Well, what is the purpose of using C&Q? ( assume its not a laptop, right?). Power consumption should not be a concern on PCs doing encodings. You can use programs like CPUIdle to cool down CPU without changing the core frequency, so I see no benefit using C&Q on PCs that are supposed to do encoding jobs...

[klumy]

C&Q makes sense

just have a look at my power consumption including TFT monitor

IDLE: 77 Watt
Full load: 130 Watt

C&Q works much better than tols like CPUIdle, because C&Q will also decrease the mein cpu voltage from 1,5V to 1,0V. CPUIdle can't do this and the power savings are not so high.

Esspecially in regions where the electricity costs are high, C&Q makes sense. So I would like to see that GK also works well with C&Q.

Intel will also introduce a similar technique called Speedstep to the Desktop PC.

[len0x]

Originally posted by klumy
Esspecially in regions where the electricity costs are high, C&Q makes sense.

lol, that's an argument you rarely see these days :)

Anyway I don't even know when next update to the GK will be (I mean GK not AutoGK, for the latter I'm not even sure I'd like to introduce such a setting), so you have to leave with what you have for a while.

[Randi]

just for further specification: Cool'n'Quiet is not a program like VCool or CPUIdle, but a processor feature by AMD, for further info check http://www.amd.com/us-en/Processors/SellAMDProducts/0,,30_177_4458_3505^9487^10272,00.html . And of course Intel is working on something similar (dont know what they gonna call it, though)

Cheers
Randi

PS you have to copy/paste the complete link, link detection does not like the arrow :-)

[bourtzovlakas]

Originally posted by klumy
Esspecially in regions where the electricity costs are high, C&Q makes sense.

I assume,if i had the money to buy an AMD 64,the electricity cost of its power consumption,would seem insignificant....
:D

[thop]

yes but why waste ~50W for nothing. now multiply that with 100 pcs, 10.000 pcs or 1.000.000 pcs. a step in a good direction.

also c&q cannot be compared to cpuidle (which just uses HLT/C1 and C2) because it is ultra fast and more sophisticated.

[Sharktooth]

... and keeps those damn CPU fans switched off ensuring a good music listening pleasure...

[klumy]

is there any chance to see this be fixed in one of the next releases?

[lrand48]

Well, at least 0.28.8 works just fine with C&Q on my laptop here, CPU-Z shows 2004MHz (mobile athlon 64 3200) when vdubmod is working. I see no difference in terms of performance when the feature is turned on or off. I consistently get 50+ fps 1st pass and 30+ 2nd pass when using Xvid 1.x (with usual suspects turned on, except gmc)

[len0x]

So I see - there is no generic problem then?

[zeg1]

Hello !
Same problem (sempron 754 3000+), in fact it seems to be a problem of priority Vdub and lame are very low priority so C&Q think it's not enough important to consume cpu...
one solution... increase manually vdub priority during agk use...

[zacoz]

Is the system set up properly (bios / driver / power settings) for Cool'n'Quiet and is it's performance set to automatic mode ?

Setup Instructions (pdf (http://www.amd.com/us-en/assets/content_type/DownloadableAssets/Cool_N_Quiet_Installation_Guide3.pdf))

Also, do you have the latest version of the driver.

From reading on the AMD site, I don't believe that the priority of individual processes should have any affect upon the CPU voltage / speed set by C'n'Q.

[zeg1]

Yes it's okay... (my bios is one week old...same problem)
The problem is AGK set priority very low to vdub and lame
So Cool&Quiet thinks lowpower is better than lowertime...

When vdub is launched manual with normal priority so it's ok...

[Thomas Davie]

Fron the AMD site, download the following utility AMD Clock at

http://www.amd.com/us-en/Processors/TechnicalResources/0,,30_182_871_13118,00.html

The first thing I did when setting up my new comp was to install AutoGK. I'll moniyor the CPU speed and report back here.

Tom

[AMED]

try using RightMark CPU Clock Utility (http://cpu.rightmark.org/products/rmclock.shtml) instead of AMD's C&Q.

excellent tool, it even allows the 4x multi.

[BigDid]

try using RightMark CPU Clock Utility (http://cpu.rightmark.org/products/rmclock.shtml) instead of AMD's C&Q.

excellent tool, it even allows the 4x multi.

Works great.

Directions:
- uninstall the amd64 driver (cool & quiet)
- install the rm clock
- configure the options (like on their web page or adapt)

* special : I have a amd64-3000/754 and I confirm the x4 use which should give 2000/10*4= 800Mhz at idle.
For my overclock it gives 2386/10*4= 955Mhz and 1.025V: less temperature, less power, less money :)

Did

[BigDid]

lol, that's an argument you rarely see these days :)
...
+1
Electricity is expensive here: 0.312 €/kwh above 200kwh/month
Internet is also expensive here: 79€/month for a 128/128kbps ADSL

just my 2 cents (of €) :)

Did

[zeg1]

only 0.1€/kwh in france and even 30% lower during night...
and 20€/month for 8mbs/1mb
for once ! I had to say it !!!

nuclear or not that is the question...
however a cent is a cent...