Author Topic: 100% cpu in IPR usage in daily?  (Read 8356 times)

2025-02-15, 11:03:30
Reply #15

MircoTosti Studio

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Are there any updates regarding the CPU usage at 100% both in IPR mode and render, and the consequent malfunctioning of the system with freezes, slowdowns, and stuttering of all windows, making it impossible to manage any Windows window or any program? I have tried both version 12 and version 13, but on my AMD 9950x, all this continues to happen. If I launch an interactive render window, or if I launch the render, the system freezes until the render is finished, making it impossible to work in other windows in the meantime or to use the interactive feature to manage and configure my scene with the creation of materials, lights, and effects, etc.

Sorry but... In this way, Corona Renderer is practically unusable, and I am just wasting my license time.
Are there any solutions or refunds available for users experiencing these issues?

2025-02-15, 20:28:43
Reply #16

rafaz

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+1

I'm on windows latest version 24h2
Latest Corona 12 update1
Amd r9 5950x

IPR takes a long time to start and when it does the system freezes and slowdown.

It's very hard to work with

2025-02-17, 14:38:02
Reply #17

maru

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Are there any updates regarding the CPU usage at 100% both in IPR mode and render, and the consequent malfunctioning of the system with freezes, slowdowns, and stuttering of all windows, making it impossible to manage any Windows window or any program? I have tried both version 12 and version 13, but on my AMD 9950x, all this continues to happen. If I launch an interactive render window, or if I launch the render, the system freezes until the render is finished, making it impossible to work in other windows in the meantime or to use the interactive feature to manage and configure my scene with the creation of materials, lights, and effects, etc.

Sorry but... In this way, Corona Renderer is practically unusable, and I am just wasting my license time.
Are there any solutions or refunds available for users experiencing these issues?

+1

I'm on windows latest version 24h2
Latest Corona 12 update1
Amd r9 5950x

IPR takes a long time to start and when it does the system freezes and slowdown.

It's very hard to work with

Hi, we have received some similar reports in the 3ds Max section: https://forum.corona-renderer.com/index.php?topic=43755.0
The solution we are aware so far is installing the BETA Windows Update version by going to Windows 11 Settings > Windows Update > Windows Insider Program, and enabling the Beta Channel. I hope this helps!

If the above doesn't help, you can also try the following:
- update your chipset driver
- update your BIOS
- disable core parking - https://learn.microsoft.com/en-us/answers/questions/1524213/remove-parked-status-of-cpu
- disable core isolation and virtual machine platform - https://www.makeuseof.com/windows-disable-two-virtualizations-game-performance-boose/
- go to BIOS and set CPU SoC voltage from the default 1.25V to 1.2V and Infinity Fabric (FCLK) to 2000 MHz
- change your power plan in Windows (try all available options, power saving, high performance, etc)
Marcin Miodek | chaos-corona.com
3D Support Team Lead - Corona | contact us

2025-02-17, 17:14:36
Reply #18

MircoTosti Studio

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I've tried everything you've listed to do and absolutely nothing changes on my 9950x with Asus ProArt X870e. Guys, this way it is really impossible to use CoronaRenderer, and we've been in this situation since December 2024.

Kindly (I imagine it's the same for everyone), try to resolve it shortly because we are in the third month where it is impossible to use the software correctly (which I love but alas, I'm now using alternatives like RedShift because I can't block the PC every time).

I don't want to be the bad cop in the situation, but until you solve it, at least offer us VANTAGE (hoping it doesn't have these problems), a way to at least mitigate the problem for those of us who have these inconveniences and are trying in any way to stay here and help you to continue the experience with CoronaRenderer.

2025-02-17, 17:22:56
Reply #19

maru

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Have you tried installing the beta Windows Update? It is confirmed by multiple users as a fix to this.
Marcin Miodek | chaos-corona.com
3D Support Team Lead - Corona | contact us

2025-02-18, 09:42:32
Reply #20

MircoTosti Studio

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Hello Maru,

I'm writing to you with a heavy heart as I have diligently followed all the "directives" provided to resolve the issue, including installing an unstable beta version of Windows, which unfortunately has brought additional complications. I feel it's necessary to voice my concerns, not just for my sake but for everyone affected. It seems unfair to continuously rely on trials and errors suggested by others when it has only worked for a few.

The issue has persisted for three months without a substantial resolution or alternative solutions to mitigate the problem. Why not consider implementing a more robust approach or engaging experts with higher levels of expertise? These are merely my thoughts and suggestions, but it's evident that something must be done.

I am losing precious time, time that could have been spent working efficiently with Corona. Instead, I am forced to use other software, which I haven't paid for, leading to additional licensing issues and wasted efforts. Most importantly, this prolonged experience has drained my patience and hope. Despite all this time, no REAL solution has been provided, only a constant decline in the situation.

ps.:
Additionally, I have invested resources amounting to thousands and thousands of euros to enhance the computational power of my workstation and optimize CoronaRenderer. However, I find myself at a standstill, unable to accomplish even the simplest tasks, like rendering a cube, without encountering problems.

I hope you understand the gravity of the situation and take appropriate action.

Best regards,

2025-02-18, 19:42:51
Reply #21

rafaz

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I've tried everything you've listed to do and absolutely nothing changes on my 9950x with Asus ProArt X870e. Guys, this way it is really impossible to use CoronaRenderer, and we've been in this situation since December 2024.

Kindly (I imagine it's the same for everyone), try to resolve it shortly because we are in the third month where it is impossible to use the software correctly (which I love but alas, I'm now using alternatives like RedShift because I can't block the PC every time).

I don't want to be the bad cop in the situation, but until you solve it, at least offer us VANTAGE (hoping it doesn't have these problems), a way to at least mitigate the problem for those of us who have these inconveniences and are trying in any way to stay here and help you to continue the experience with CoronaRenderer.

Vantage is even worse, not all material and tags are compatible, some scenes won't even open

2025-02-18, 19:53:54
Reply #22

TomG

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On the 9950X issue, this unfortunately appears to be a Windows issue and a problem with the latest update. Everything gathered from user reports and testing is pointing to that, and so while we understand it is frustrating, there is nothing we can do to fix it as nothing in Corona is broken, but something in that Windows update is broken. If there is evidence of a 9950X experiencing problems with a particular version of Corona WITHOUT having that problematic version of Windows installed (so, a prior version of Windows), do please send that in. But based on the evidence we are seen so far, we are all at the mercy of Microsoft to correct whatever problems they introduced in the latest Windows release (which has also carried problems for other software too, again based on information that has been posted).

I am not sure on the comment about Vantage though and how that relates to the original topic? Sounds like it should go in a different thread on its own, because it is a different issue?
Tom Grimes | chaos-corona.com
Product Manager | contact us

2025-02-19, 11:47:51
Reply #23

MircoTosti Studio

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Good morning Thomas,

Thank you for your response, but I believe what you wrote is neither reasonable nor accurate. For the first time, I find myself in complete disagreement with you, despite your continuous assistance. This issue occurs not only with the 9950x but also with the 5950x, Xeon processors, and others. I also see that all users of 3ds Max and Cinema 4D with high core count capabilities face the same situation. This never happened before the introduction of versions 12 and 13, and the system is always Windows.

I'm sorry, but blaming others (Windows) does not seem like a good way to promote yourselves; on the contrary, it creates the opposite effect. No CPU software causes issues under Windows 11; instead, I have noticed a significant performance boost (and I have tested them all). Even your core limiter for Cinema 4D does not work, as the cores remain active even if I manually set them.

I have also installed the beta version, which is unrelated to the installed version of Windows. This problem has been ongoing since November (when you started releasing versions 12 and 13). If you look back at my other posts, you will see that in October and November there were no updates, and it was always the old version.

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« Last Edit: 2025-02-19, 12:00:52 by MircoTosti Studio »

2025-02-19, 15:04:20
Reply #24

maru

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Can you please try installing the newest Windows Update? (KB5052093)
It seems to be the solution for 3ds Max users: https://forum.corona-renderer.com/index.php?topic=44441.0
Marcin Miodek | chaos-corona.com
3D Support Team Lead - Corona | contact us

2025-02-19, 17:05:41
Reply #25

TomG

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Please note that there are separate issues, that are tracked separately, for general high core count machines, and the 9950X in particular (which has its own unique situation, which is related to the Windows update, which is what I was referring to here). On the general high core count, there have been fixes for those already in the latest Corona releases and hotfixes, so most of those will be resolved (one that may remain is high core count dual CPU systems, which again were a separate case). Of course if anyone is still having a specific issue, let us know, and let us know which CPU set up you have so we can see where the issue lies (general high core / thread count, 9950X in particular, high core / thread multi CPU systems so mostly Epycs). Thanks!
Tom Grimes | chaos-corona.com
Product Manager | contact us

2025-02-19, 17:15:48
Reply #26

burnin

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I too found this strange occurrence with latest Corona plugin.
User set core/thread count is respected, but only when using Cinema's "Interactive render region" (Alt+R), all else uses all cores/threads.
Wouldn't had noticed, since I got single core reserved. After changing that to half, it got obvious.

2025-02-19, 20:23:47
Reply #27

MircoTosti Studio

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Can you please try installing the newest Windows Update? (KB5052093)
It seems to be the solution for 3ds Max users: https://forum.corona-renderer.com/index.php?topic=44441.0

Can you explain to me step by step how to remove the beta version that you made me install to return to the official version of Windows 11 with this update?

2025-02-19, 22:59:04
Reply #28

Quest

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Can you please try installing the newest Windows Update? (KB5052093)
It seems to be the solution for 3ds Max users: https://forum.corona-renderer.com/index.php?topic=44441.0

Can you explain to me step by step how to remove the beta version that you made me install to return to the official version of Windows 11 with this update?

Hello, I had the same problem with x9 PC (x5950/9950x and even 14900k was tested)
Best solution for now is rollback to 23h2, the general problem seems is in windows
Also, the problem was fixed and tested on few PC with 9950 with update to 24h2 26100.3321
(You can also turn off EXPO in bios in some cases that help as well)

We spend about a few months for making all possible test before find out that problem was mostly in Windows update after 24h2 26100.1742
Looks like they broke something in power plan, there not only corona suffer with that kind problem

2025-02-20, 08:57:06
Reply #29

maru

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Can you please try installing the newest Windows Update? (KB5052093)
It seems to be the solution for 3ds Max users: https://forum.corona-renderer.com/index.php?topic=44441.0

Can you explain to me step by step how to remove the beta version that you made me install to return to the official version of Windows 11 with this update?

Try leaving the Insider program and then check for updates. The new update should just appear as available for download. There is a chance that it won't appear for you because, as far as I know, they are rolling out updates gradually.
Marcin Miodek | chaos-corona.com
3D Support Team Lead - Corona | contact us