Chaos Corona for Cinema 4D > [C4D] Bug Reporting

Dual cpu speed problems

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TomG:
Interesting, as this is the "Dual cpu speed problems" thread ;)

Evolist_ua:

--- Quote from: TomG on 2024-02-22, 19:18:49 ---Interesting, as this is the "Dual cpu speed problems" thread ;)

--- End quote ---

Yes))

I have a system with a dual processor, but I thought that switching to a high-performance single-processor system would help me, but as it turned out, I have the same problem))

P.S. on my system with 5950x (16 cores/32 threads) everything is fine.

TomG:
The report is welcomed of course! I was looking to see if we had a better thread to report it under, but for now there isn't one, we might set one up though if we hear more issues with single CPUs. On the 3990X we have for testing, this fix did indeed make a difference, so this is interesting.

Evolist_ua:
Hi, any news on the speed issue without corona bitmaps? Just tested the 13th corona and the issue remains(
I have several systems now:
5950х (16core\32threads) - аll ok
3970x (32\64) - all ok
3990x (64\128) - the problem is present( But if you limit the number of threads in cinema to 64, then everything is ok.  This may be related to the Windows scheduler (if the system has a large number of core\threads, it splits them into 2 groups). But in 3d max this problem was not there, and in corona bench all ok.
(in dual cpu system with xeon`s - everything is like 3990x system)

Is the only solution - still to use the corona bitmap ?

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