The light cache system seems to be very cpu aggressive now, especially for phones.
It seems very easy for phones to get “stuck” doing 4-8ms of lighting updates every single frame, from having moving parts from things like windshake, or pets, or other ambient instances moving around.
An extra 8ms per frame of 100% cpu usage causes my iphone 6s to absolutely cook itself, which is what tipped me off to there being a problem in the first place.
Would it be possible for the light grid system to slow down and be a bit more conservative with cpu? Maybe a few frame cooldown on things?
I am glad somebody reported this, I am experiencing the same issue with every single game on my Samsung Galaxy M12 phone. This is taking a lot of frame time and is causing huge fps loss.
Glad to hear that there is at least a mitigation for this issue that has been done, hopefully we would get a full fix to the root cause next.
To be honest though, it shouldn’t have took that long to even get a mitigation to this issue, it’s a high severity issue and the issue quite affects performance a lot, especially and very noticeably on Mobile devices, especially ones that are low-end or old. I expected a faster resolution to this issue, but I am glad that it at least got a mitigation now, hopefully it won’t take too long to enable it. Please update us when the mitigation is enabled, and perhaps when a full fix to the root cause has been found and enabled
The mitigation is out. It shouldnt impact frame rate as much anymore let me know if this is still impacting yall. Unfortunately, we havent gotten the actual full fix yet.
I believe the lightgrid still invaliates every frame or so but the effects are way less severe to be that impactful. Hopefully it won’t be too hard or complicated to get a full fix for the root cause of the issue, but it seems it is.
