Multimap slow when used on many objects

[simtub]

We've notice rendering grinds to a halt when lots of multimaps have been used in different materials applied to trees and foilage specifically when using multimap on instances and mesh element. We also used multimap on the scene spotlights and bulb objects with light material applied on. Is this somewhat a known issue?

The render went from rays/s 3.5 million to rays/s 700,000 on an i9 12900K.   

[Aram Avetisyan]

Hi,

Did you notice the slowdown ONLY with multiple MultiMaps applied to trees and foliage, or in combination of this and multimaps to light/bulb objects?

It will be good to get the scene (or a sample of it) and try it on our side.
At this moment, I am not aware of any slowdowns related to multimap.

[Aram Avetisyan]

Hi,

Do you have any updates here?
Is the issue solved for you now?