Corona 13 daily builds IR/viewport slowdown

[romullus]

I did notice slowdowns when IR is running in Corona 13. Slowdowns are not in the viewport, but rather in slate material editor. When IR is running everything in SME is more sluggish - dragging nodes around, connecting node handles, almost every operation needs to be tried 2-3 times before succeeding. Not a deal breaker, but certainly adds up to quite frustrating experience. SME was never smooth in Corona, but in V13 it's even worse than usual.

[maru]

What is your CPU Romullus, and could you share a sample screen capture?

[romullus]

Ryzen 5950x

I will try to record some screen capture some time later. I will also try to go back to Corona 12, just to check if slowdown is real and not something i imagine.

[shortcirkuit]

i realise hte latest daily may not have addressed the issue of the slowdown - but wanted to confirm and let you know i installed it and its still slow.

[shortcirkuit]

Has this issue been addressed yet in the latest release?

[v.p.vlasenko]

Update from my side, 12 update 1 - still a huge slowdown in max. Even settings tooltips appear/disappear very slowly.  Other software like chrome is slow as well.

intel 7980xe, 36 threads. By default # of threads override is set to -1. Reducing this number makes things more responsible (while slowing down render), BUT even with -18 (half) 3dsmax still utilizes 90-95% CPU. At -30 it uses 80-90% at first passes dropping to 37-40 in a few seconds. At -35 (so only one thread) max uses 60-70% at the start and drops down to 17-20%.

The best setting for me so far is -6. All higher is too slow, and reducing it below 6 has no noticeable effect.

[Sepia21]

I am experiencing the same slowdowns with the most recent update (Corona 12 Update 1).

[v.p.vlasenko]

Seems like the problem exists not only with IR, but also with production render. I started rendering and even the text I'm typing right now appears with significant delay. Everything is so slow - I had 2 max opened and after I started rendering in one of them, I tried to close another. Saving the scene before closing took almost a minute instead of a few seconds. The scenes are quite simple, 30mb in size (with compression). Without rendering it takes just a few seconds to save.