Regression: Lag and high memory usage from high amount of instances persists after removing those instances #114742

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opened 2023-11-11 17:15:27 +01:00 by Electruuu · 9 comments

Electruuu commented

2023-11-11 17:15:27 +01:00

System Information
Operating system: Windows-10-10.0.19045-SP0 64 Bits
Graphics card: NVIDIA GeForce RTX 3050 Laptop GPU/PCIe/SSE2 NVIDIA Corporation 4.6.0 NVIDIA 536.23
Also reproduced on a diffrent Windows 11 PC

Blender Version
Broken by 45f3426559
Worked: version: 3.6.5

Short description of error
Creating many instances with Geometry Nodes causes 3D Viewport to lag and use up memory (that's fine). Lag and high memory usage persists even after removing those instances (i don't think that should be happening).
Node setup:

Memory usage is multiplied for every open 3D Vieport Area, when the bug happens (3D Viewport Areas created after reproducing the bug don't lag). Memory usage and lag dissapears after closing affected 3D Viewports (changing Areas, switching Workspaces).

Exact steps for others to reproduce the error
Based on attached .blend file:

Select the plane
Enter edit mode
Scale the plane to increase the instance amount until blender starts lagging (for me, it's around 1 milion isntances) (or do anything to increase instance amount)
Cancel scaling with right click
(optionally: unplug Geometry Nodes from Group Output)
Try moving around in the 3D Viewport

**System Information** Operating system: Windows-10-10.0.19045-SP0 64 Bits Graphics card: NVIDIA GeForce RTX 3050 Laptop GPU/PCIe/SSE2 NVIDIA Corporation 4.6.0 NVIDIA 536.23 Also reproduced on a diffrent Windows 11 PC **Blender Version** Broken by 45f3426559 Worked: version: 3.6.5 **Short description of error** Creating many instances with Geometry Nodes causes 3D Viewport to lag and use up memory (that's fine). Lag and high memory usage persists even after removing those instances (i don't think that should be happening). Node setup: ![obraz](/attachments/ca2e3b95-ab8e-4f13-9323-53c7d831470d) Memory usage is multiplied for every open 3D Vieport Area, when the bug happens (3D Viewport Areas created after reproducing the bug don't lag). Memory usage and lag dissapears after closing affected 3D Viewports (changing Areas, switching Workspaces). **Exact steps for others to reproduce the error** Based on attached .blend file: 1. Select the plane 2. Enter edit mode 3. Scale the plane to increase the instance amount until blender starts lagging (for me, it's around 1 milion isntances) (or do anything to increase instance amount) 4. Cancel scaling with right click (optionally: unplug Geometry Nodes from Group Output) 5. Try moving around in the 3D Viewport

893 KiB

61 KiB

Electruuu added the

labels 2023-11-11 17:15:27 +01:00

Iliya Katushenock added the

EEVEE & Viewport

Nodes & Physics

labels 2023-11-11 17:18:59 +01:00

Iliya Katushenock changed title from ~~Lag and high memory usage from high amount of instances persists after removing those instances~~ to Regression: Lag and high memory usage from high amount of instances persists after removing those instances

2023-11-11 17:19:05 +01:00

Iliya Katushenock commented

2023-11-11 17:58:14 +01:00

Member

Not able to reproduce this in 4.1 and 4.0.

Not able to reproduce this in 4.1 and 4.0.

Richard Antalik commented

2023-11-12 21:57:21 +01:00

Member

I can reproduce some residual used memory and the lag. Don't think, that lag should be acceptable. Memory is questionable.

I can reproduce some residual used memory and the lag. Don't think, that lag should be acceptable. Memory is questionable.

Richard Antalik added

Nodes & Physics

and removed

labels 2023-11-12 21:58:41 +01:00

Pratik Borhade added this to the 4.0 milestone 2023-11-13 07:31:47 +01:00

Lukas Tönne commented

2023-11-13 12:23:01 +01:00

Member

Can confirm persistent memory as well.

Can confirm persistent memory as well.

Martijn Versteegh commented

2023-11-13 12:28:31 +01:00

Member

fwiw I can't repro this. No lag on my machine (did not really look closely into memory usage)

fwiw I can't repro this. No lag on my machine (did not really look closely into memory usage)

Lukas Tönne commented

2023-11-13 13:04:13 +01:00

Member

I think i can confirm that it's a regression, but it's a bit difficult to compare directly. in 3.6 i can ramp it up to 2.5GB and it drops back down to <700MB after scaling back. In 4.1 it goes down somewhat but remains above 1.5GB.

I _think_ i can confirm that it's a regression, but it's a bit difficult to compare directly. in 3.6 i can ramp it up to 2.5GB and it drops back down to <700MB after scaling back. In 4.1 it goes down _somewhat_ but remains above 1.5GB.

Richard Antalik commented

2023-11-13 21:40:14 +01:00

Member

Broken by 45f3426559
CC @pragma37

Broken by 45f342655926bb3d65c40a11988113addc2f8b47 CC @pragma37

Miguel Pozo added

EEVEE & Viewport

and removed

Nodes & Physics

labels 2023-11-14 16:44:12 +01:00

Miguel Pozo referenced a pull request that will close this issue

2023-11-14 18:49:49 +01:00

Fix #114742: Draw: Buffers never shrink #114857

Miguel Pozo commented

2023-11-14 19:04:31 +01:00

Member

Could you give a try to #114857?
It fixes the issue for me, but just to be sure.
The builds will be here when ready: https://builder.blender.org/download/patch/PR114857

Could you give a try to #114857? It fixes the issue for me, but just to be sure. The builds will be here when ready: https://builder.blender.org/download/patch/PR114857

Richard Antalik commented

2023-11-14 21:05:30 +01:00

Member

@pragma37 The patch does fix the issue for me

@pragma37 The patch does fix the issue for me

Electruuu commented

2023-11-14 22:22:04 +01:00

Author

It also fixes the issue for me

It also fixes the issue for me

Miguel Pozo referenced this issue from a commit

2023-11-20 12:23:22 +01:00

Fix #114742: Draw: Buffers never shrink

Miguel Pozo closed this issue

2023-11-20 12:23:24 +01:00

Blender Bot added

and removed

labels 2023-11-20 12:23:26 +01:00

Miguel Pozo referenced this issue

2023-11-20 12:26:46 +01:00

4.0: Candidates for corrective releases #114706

Thomas Dinges referenced this issue from a commit

2023-11-27 17:38:20 +01:00

Fix #114742: Draw: Buffers never shrink

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