Blender 2.8 multires sculpting problems

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I want to give little feedback on current MultiRes. The case is fairly straightforward:

  1. A mesh with 1 milion poly.
  2. 3 render/sculpt MultiRes layers on top of it.
  3. MultiRes is hidden in viewport.
  4. Go into edit mode.
  5. Add between 15-20% more mesh - extrude part of the mesh, add loop-cuts to match the original 1kk mesh density.

After applying loop cuts the RAM usage spiked and plateau at around 95GB. The CPU is used between 50-70% on all threads. And it sits on this for over 13 hours now, as I’m writing this post.

The CPU usage is indicating that some work is beeing done:

MultiRes_CPU
MultiRes_CPU1279×500 84.8 KB

But I don’t know if this is some kind of bug with neverending loop, and I should break it. Or it’s just taking so long for MultiRes to be updated to new mesh size.
I should add that CPU usage spikes are not repetitive.

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