Author Topic: Interactive rendering slows down.  (Read 5724 times)

2025-01-24, 09:13:44
Reply #30

Naxos

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I could not reverse to 23h2, so i'm still in 24h2

the only way to go back now is to reinstall full PC : not really into this now...

2025-01-24, 09:19:26
Reply #31

maru

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Just making sure I understand this correctly:
@fatherrain - you are still experiencing slowdowns with Corona 12 Update 1 Hotfix 1 with Expo enabled. If you disable Expo, it goes back to normal.
@Naxos - you have Expo enabled and Corona 12 Update 1 Hotfix 1 works correctly for you without the lags.

Is the above correct?
Marcin Miodek | chaos-corona.com
3D Support Team Lead - Corona | contact us

2025-01-24, 09:29:01
Reply #32

Naxos

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@Maru :
All was ok with win11 23H2, EXPO on, Corona 12.1... then i've updated to 24H2 and lags came out.
I've tried corona daily build (corona 13 daily jan 10 2025) : a little bit better for a time
i can't go back to 23H2.
Tried to update BIOS (Asus Tuf gaming X670-E plus bios 3067 (not the new beta one)
EXPO still on : it seams to be better, at least yesterday i did not had serious lags...

define lags in this issue : all is stopped for 10-15 seconds : even mouse pointer, the whole PC seams frozen, then back to normal for 5-7 seconds, and again frozen... Only when rendering or IR.
the task manager does not show anything alese than 3dsmax at 100% CPU... ram is not full, HDD / SDD not used... And... task manager also is frozen for those 10-15s

even with light scene : plane + teapot, hdri for light (same hdri i use since 10-15 years)...

2025-01-24, 10:05:02
Reply #33

Quest

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New hotfix didnt help at all same freezzes

2025-01-24, 10:08:38
Reply #34

maru

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@Naxos - have you tried the Hotfix 1? It's different than the daily build. There are some fixes in it specifically for these kinds of problems.
https://www.chaos.com/corona/download
Marcin Miodek | chaos-corona.com
3D Support Team Lead - Corona | contact us

2025-01-24, 10:15:19
Reply #35

Aram Avetisyan

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New hotfix didnt help at all same freezzes

Hi,

Please try to send a short recording of how the lag looks like and when exactly it happens (straight when IR starts, some time after, when selecting a material etc.) and please also share your specs - this is very important for this issue.
Aram Avetisyan | chaos-corona.com
Chaos Corona QA Specialist | contact us

2025-01-24, 10:55:17
Reply #36

Quest

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New hotfix didnt help at all same freezzes

Hi,

Please try to send a short recording of how the lag looks like and when exactly it happens (straight when IR starts, some time after, when selecting a material etc.) and please also share your specs - this is very important for this issue.

Windows 24h2 26100.2894
Ryzne 9950Х
Asus b650E-F bios 3067
DDR5 gskill 96 gb 4800/5200 expo

Befor hotfix there was a problem with memory but no freezes with PC (actually they was only if turn on expo or OC memory), now after hotfix no metter expo on or off there no problem with memory leak but all time freezz, lags basicly you cant normaly control UI or windows, on clear corona 12 all ok.

sorry video abit heavy 5min duration 4k
https://drive.google.com/drive/folders/1VISfs5HjCwsPyMrg7Fl34mDSCDXxhhnC?usp=sharing

2025-01-24, 11:08:22
Reply #37

fatherrain

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Just making sure I understand this correctly:
@fatherrain - you are still experiencing slowdowns with Corona 12 Update 1 Hotfix 1 with Expo enabled. If you disable Expo, it goes back to normal.
@Naxos - you have Expo enabled and Corona 12 Update 1 Hotfix 1 works correctly for you without the lags.

Is the above correct?

yes, as you said. My problem continues in the latest version.

2025-01-24, 11:12:58
Reply #38

fatherrain

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For those who have problems, can you write the exact model of the ram?

2025-01-24, 13:23:12
Reply #39

Quest

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For those who have problems, can you write the exact model of the ram?

G.Skill 96 GB (2x48GB) DDR5 5200 MHz Ripjaws S5 Matte (F5-5200J4040A48GX2-RS5K)

2025-01-24, 20:16:32
Reply #40

skogskalle

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I think I have the same problem with my new 9950X.  But in my case the interactive rendering works almost ok, it lags but doesnt freeze. Its the normal rendering that doesnt work at all.  Max freezes for 10-30 seconds then responds for a few seconds before freezing again. Impossible to do anything else on the computer.
I just made a test removing the side of the computer and I could render for 10 min without freezing, so I guess the problem in my case is that the cpu gets too hot. With the computer case closed it goes to 95 degrees in a few minutes when rendering and freezes almost instantly.

I downloaded the corona benchmark and it ran without problems. Its rendering in max that doesnt work. Cant say if this is a problem just with my cpu cooling or if there is something in corona making the cpu go crazy.
« Last Edit: 2025-01-24, 20:30:20 by skogskalle »

2025-01-24, 20:32:47
Reply #41

fatherrain

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It is normal for the processor to be at 95 degrees. It works at the same temperature for me too. There is no problem with rendering during IR, but the system freezes. Sometimes the system shuts down completely. When it is turned off, the temperature is often around 80 degrees. If you use the bios at default setting you will see the difference.

2025-01-24, 20:37:06
Reply #42

fatherrain

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For those who have problems, can you write the exact model of the ram?

G.Skill 96 GB (2x48GB) DDR5 5200 MHz Ripjaws S5 Matte (F5-5200J4040A48GX2-RS5K)

Our RAMs are different. So the problem is not related to RAM. Could there be a problem with some processors in the 9950x processor family? As far as I understand, this is not a problem with all 9950x processors.

2025-01-24, 21:51:25
Reply #43

Naxos

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It has been working like a charm with 9950X since it's came out... Just the day after win11 24H2 upgrade it began to freeze...
Maybe not related, but very suspicious...

2025-01-25, 00:14:39
Reply #44

Quest

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For those who have problems, can you write the exact model of the ram?

G.Skill 96 GB (2x48GB) DDR5 5200 MHz Ripjaws S5 Matte (F5-5200J4040A48GX2-RS5K)

Our RAMs are different. So the problem is not related to RAM. Could there be a problem with some processors in the 9950x processor family? As far as I understand, this is not a problem with all 9950x processors.

Well look) all PC with different RAM, AIO, MB. 1 with 5950+24h2 and 3 with Ryzen 9950X + 24h2 my AVG temps 75-80 with OC mode. (also latest bios)

But there still few minor difference...
1st PC have zero problems with Corona 12.1 and it have windows 24h2 10.0.26100.1742 and EXPO off.
2nd PC with 24h2 10.0.26100.2894 and Corona 12.1 have no stuttering but if turn on EXPO its starts, also it start frezz with Corona 12.1.1 no metter EXPO on or off.
3rd PC with 24h2 10.0.26100.2314 and Corona 12.1 have stuttering even if EXPO off, and same with Corona 12.1.1
4th PC Ryzen 5950Х with 24h2 10.0.26100.2314 and Corona 12.1  have no stuttering with EXPO on.

Also after Corona 12.0 scene parsing in 12.1 take about 30 sec befor was 10-15 sec (I guess of scene state, have to test more)
In general interactive and production render worse then was on Widndows 23h2 and Corona 12.0 (memory leak, frezzes, longer parsing)