Chaos Corona Forum

Chaos Corona for 3ds Max => [Max] Bug Reporting => [Max] Resolved Bugs => Topic started by: jparkbab on 2022-04-06, 04:53:14

Title: Low cpu usage (40%)
Post by: jparkbab on 2022-04-06, 04:53:14

Hi, I recently bought a new desktop (i9-12900k and 64GB of memory) to do a new rendering project.
When I tested the corona benchmark first, I realized that it only used about 40% CPU usage only.
Is there any setting that I have to change in corona when I use intel CPU?  Or any other solution to solve this issue?
Please let me know if you guys have any solutions. Thanks!

Title: Re: Low cpu usage (40%)
Post by: rowmanns on 2022-04-06, 08:58:00

Hi,

This is a Windows issue, you need to upgrade to Windows 11.

Windows 10 doesn't have full support for these CPUs.

Thanks,

Rowan

Title: Re: Low cpu usage (40%)
Post by: romullus on 2022-04-06, 10:00:15

Here's the similar issue which was solved by upgrading to windows 11 https://forum.corona-renderer.com/index.php?topic=35819.msg195973#msg195973

Title: Re: Low cpu usage (40%)
Post by: jparkbab on 2022-04-08, 12:12:24

The issue was solved once I updated my window 10 to 11 as you said.
Thanks for the help! Appreciate it!

Title: Re: Low cpu usage (40%)
Post by: silvercat@ukr.net on 2022-11-17, 11:26:53

Hello! What about distributed rendering?
in Windows 11 on Intel 12 series, when the rendering window is selected - everything is ok. but as soon as I click on another window, the rendering remains only on energy-efficient cores. how to fix it?
I tried to change the priority, I tried to force the window on top of others. but it doesn't help..
I use corona 7

screenshot
https://prnt.sc/xPoF008GJcqV

Title: Re: Low cpu usage (40%)
Post by: maru on 2022-11-17, 11:40:51

One option would be to upgrade to Corona 8 or 9, since 7 is an old version already. The issue may be fixed in the newer versions.

Also, make sure you have your Windows fully updated.

There is also this command, but please keep in mind it is unofficial and we cannot be responsible for any issues caused by using it:
powercfg /powerthrottling disable /path "C:\Program Files\Autodesk\3ds Max 20XX\3dsmax.exe"

Title: Re: Low cpu usage (40%)
Post by: rowmanns on 2022-11-21, 13:28:44

Quote from: silvercat@ukr.net on 2022-11-17, 11:26:53

Hello! What about distributed rendering?
in Windows 11 on Intel 12 series, when the rendering window is selected - everything is ok. but as soon as I click on another window, the rendering remains only on energy-efficient cores. how to fix it?
I tried to change the priority, I tried to force the window on top of others. but it doesn't help..
I use corona 7

screenshot
https://prnt.sc/xPoF008GJcqV

Hi,

This is fixed in Corona v9. The solution here would be to update to this version.

Cheers,

Rowan