Hi,

 

im using a Core i9-9900 (not k version) and a Gigabyte z390 UD Mainboard with unraid 6.8.1 and the cpu does not go in power save mode. In Gigabyte bios all settings for power saving are active but the cpu is not clocking itself down. Also in unraid i have tips & tweaks installed and "CPU Scaling Governor:" set to "Power Save". The cpu is always over 4GHz and only goes down to 1GHz for a second and then again immediately over 4GHz. Cpu usage at all cores are at 0 - 1%. Are there currently problems in unraid 6.8.1 or settings that I need to adjust? I don't know what else I can do. There are no more settings in Bios.

 

Thanks for any help.

Edited January 17, 20206 yr by x-dast

I have tested this with Windows on the same hardware and Windows does its job correctly. The CPU is not continuously above 4GHz. Windows correctly clocks the CPU down to about 1-2 GHz. This also reduces the power consumption from over 100W down at about 50W. So this must be a bug in Unraid.

 

I use same MB with 9700K, Tips and Tweaks for two control, power save and turbo boost also work normal. If Windows haven't problem it is strange.

 

If I remember correct, lowest freq will be ~3Ghz, won't as your Windows show 1.35Ghz.

 

Pls don't set all core boost in BIOS.

 

Edited January 18, 20206 yr by Benson

The lowest possible frequence for i9-9900 is 800MHz. All core boost is disabled in BIOS.

 

What I don't understand is, that the tips & tweak Plugin has "Governor: Performance" after every reboot but in the settings i have set it to "Power Save". Also the plugin "system profiler" has for the CPU "Max Speed: 8300 MHz" which is not correct.

 

Is there a unraid 6.9 with Kernel 5.4 what i can test?

Mine "Governor" setting won't change after reboot.

I have now also tested the problem with an older unraid version. With version 6.7.2 the CPU is correct clocked down to 800MHz-1,5GHz.

Hi,  

 

I just tested this on 6.8.1 after rebooting (tweaks CA plugin had powersave set as governor). 

After reboot I logged in and ran “watch lscpu” 

This allowed me to watch CPU frequency and assess it compared to expected fluctuations. The values were higher than I expected. 
 

Via gui CA plugin I then changed to performance, saved. Noted lscpu output did not change. Set back to powersave and saved. Noted lscpu output now scales back CPU more aggressively. 
 

This action must be performed each reboot to gain power savings. 
 

p

 

Edited January 18, 20206 yr by PeteAsking
Spelling

That is correct. The behaviour is the same with me. However, it doesn't explain why unraid doesn't downclock the CPU and run above 4GHz permanently.  Windows on the other hand clocks the CPU down to about 1GHz-2GHz correctly.

Edited January 18, 20206 yr by x-dast

It is strange. It must be some sort of bug. I have also noticed that since doing this and having it set to powersave correctly now, my drive temperatures have dropped 2-3 degrees each so this is something I will have to do each reboot for now. Luckily I dont reboot often. 
 

-P

Edited January 18, 20206 yr by PeteAsking
Spelling

22 minutes ago, PeteAsking said:

something I will have to do each reboot for now.

Add the required commands to the config/go file on the flash and they will then get run as part of the boot process.

7 minutes ago, itimpi said:

Add the required commands to the config/go file on the flash and they will then get run as part of the boot process.

I do not know what commands the ca Tweaks community app runs to set this feature, but that would be a suitable workaround if it is not considered a problem and needing of a fix

Here the same. Everytime I check the frequency with the cmd line my i5 4690 boosts at 3.9 Ghz.

How can I monitor the cpu frequency? The grep command shows only one frequency.

 

 

2 minutes ago, rl2664 said:

Here the same. Everytime I check the frequency with the cmd line my i5 4690 boosts at 3.9 Ghz.

How can I monitor the cpu frequency? The grep command shows only one frequency.

 

 

“Watch lscpu”

Thanks.
No throttling down. Always on full boost.

2 minutes ago, rl2664 said:

Thanks.
No throttling down. Always on full boost.

Try toggling the Setting to performance then powersave in the ca tweak plugin and see if it fixes it for you also. If it does then its the same thing for a bunch of people

Yes, works fine. Looks like a bug in 6.8.1
I tryed to downgrade to 6.8.0 with the same results

 

Edit: If i leave the ca tweaks plugin installald the cpu throttels down after a reboot. If i uninstall the plugin the cpu stays at boost freq after reboot

Edited January 18, 20206 yr by rl2664

In addition to my tests I have now added "intel_pstate=disable" to the file "/boot/syslinux/syslinux.cfg" and disabled pstate drivers. My i9-9900 now correctly clocks down permanently at 900MHz in idle. I have solved my problem with this change.

 

Original post:

 

I remember this thread. Back in 2016 i had to disable the pstate driver because of the same problems. Later this problem was fixed for my old i3 4170. And now the i5 4690 has the same problems again. Perhaps since i installed this cpu. I never checkd the freq, i thought this is long fixed..

The only problem I still have is that the power consumption with Unraid is in idle at about 80-90W and 40-50W with Windows on the same hardware. And I don't know why. CPU freq idle with Unraid is at about 800 - 900MHz and 900MHz - 1,5GHz with Windows. What the heck is Unraid doing?

2 hours ago, x-dast said:

80-90W and 40-50W with Windows on the same hardware.

Should be GPU.

Which GPU? The Intel GPU or the PCIe? Booth are not in use on Unraid (80-90W, also with PCIe GPU removed). In Windows the Intel GPU is in use (40-50W).

It should be PCIe GPU, due to not in powersave mode, but if you removed then no much idea. iGPU shouldn't cause 30w- 40w different.

 

Does HDD in standby / active for same status if compare in Windows or Unraid.

Edited January 21, 20206 yr by Benson

I resolved this problem of cpu not scaling down by using the tweak and scheduling performance at 23:30 and powersave at 23:35. This would mean it switches back down every day even if something changes it.

1 hour ago, Benson said:

It should be PCIe GPU, due to not in powersave mode, but if you removed then no much idea. iGPU shouldn't cause 30w- 40w different.

 

Does HDD in standby / active for same status if compare in Windows or Unraid.

In Unraid all HDD are in standby.

On 1/18/2020 at 5:38 PM, rl2664 said:

Edit: If i leave the ca tweaks plugin installald the cpu throttels down after a reboot. If i uninstall the plugin the cpu stays at boost freq after reboot

That is as expected. If you uninstall Tips and Tweaks then it is no longer present to set the appropriate governor when you reboot. If you want to use the plugin you need to keep it installed.