3.2 eevee bad performance #98865

New Issue

bruno · 2022-06-13T23:42:54+02:00

bruno commented

2022-06-13 23:42:54 +02:00

System Information
Operating system: Windows-10-10.0.19044-SP0 64 Bits
Graphics card: Radeon RX Vega ATI Technologies Inc. 4.5.14800 Core Profile Context 22.4.2 30.0.15021.7000

Blender Version
Broken: version: 3.2.0, branch: master, commit date: 2022-06-08 10:22, hash: e05e1e3691
Worked: 3.1.2

Short description of error
Eevee is slower when compiling shaders and on viewport.
Compiling time has doubled and viewport feels laggy when zooming on small details.

Exact steps for others to reproduce the error

Open attached file
Change viewport to material preview
slow.blend

My compiling times went from ~10 seconds (3.1.2) to ~20 seconds (3.2) when limiting blender to one thread.
When disconnecting the bump node both compile in ~3 seconds.
I think it might be a combination of many nodes and bump node.

**System Information** Operating system: Windows-10-10.0.19044-SP0 64 Bits Graphics card: Radeon RX Vega ATI Technologies Inc. 4.5.14800 Core Profile Context 22.4.2 30.0.15021.7000 **Blender Version** Broken: version: 3.2.0, branch: master, commit date: 2022-06-08 10:22, hash: `e05e1e3691` Worked: 3.1.2 **Short description of error** Eevee is slower when compiling shaders and on viewport. Compiling time has doubled and viewport feels laggy when zooming on small details. **Exact steps for others to reproduce the error** - Open attached file - Change viewport to material preview [slow.blend](https://archive.blender.org/developer/F13158144/slow.blend) My compiling times went from ~10 seconds (3.1.2) to ~20 seconds (3.2) when limiting blender to one thread. When disconnecting the bump node both compile in ~3 seconds. I think it might be a combination of many nodes and bump node.

bruno commented

2022-06-13 23:42:54 +02:00

Added subscriber: @brunocb

blender-admin commented

2022-06-13 23:42:54 +02:00

#99163 was marked as duplicate of this issue

Sun Kim commented

2022-06-16 10:20:49 +02:00

Added subscriber: @persun

Sun Kim commented

2022-06-16 10:20:49 +02:00

System Information
Operating system: Windows-10-10.0.19043-SP0 64 Bits
Graphics card: Radeon RX 570 Series ATI Technologies Inc. 4.5.14800 Core Profile Context 22.5.1 30.0.15021.11005

I was feeling about this too. Yes, my GPU is old, low-end card and I was annoyed by shader compiles all the time but it's actually got worse .

I tried the file @brunocb attached and timed shader compile time (used smartphone's stopwatch, timed how much it takes from hitting the Material Preview button to actually showing the material.)

3.1.2: < 1s
3.2: 12-13s
3.3 (04a75c90d58a, June 14th): 12-13s

I also made a test file with little more complex, more "stressful" setup, using chains of bump nodes, procedural texture nodes, and a mix shader node.

bar.blend

Again, timed with the same method:

3.1.2: 1-2s
3.2: 60-67s
3.3 (04a75c90d58a, June 14th): 58-60s

**System Information** Operating system: Windows-10-10.0.19043-SP0 64 Bits Graphics card: Radeon RX 570 Series ATI Technologies Inc. 4.5.14800 Core Profile Context 22.5.1 30.0.15021.11005 --- I was feeling about this too. Yes, my GPU is old, low-end card and I was annoyed by shader compiles all the time but it's actually got worse . I tried the file @brunocb attached and timed shader compile time (used smartphone's stopwatch, timed how much it takes from hitting the Material Preview button to actually showing the material.) * 3.1.2: **< 1s** * 3.2: **12-13s** * 3.3 (`04a75c90d58a`, June 14th): **12-13s** I also made a test file with little more complex, more "stressful" setup, using chains of bump nodes, procedural texture nodes, and a mix shader node. [bar.blend](https://archive.blender.org/developer/F13173104/bar.blend) ![bar.png](https://archive.blender.org/developer/F13173111/bar.png) Again, timed with the same method: * 3.1.2: **1-2s** * 3.2: **60-67s** * 3.3 (`04a75c90d58a`, June 14th): **58-60s**

Nicolas Ong commented

2022-06-16 23:51:04 +02:00

Added subscriber: @kholo

Nicolas Ong commented

2022-06-17 00:28:31 +02:00

System Information
Operating system: Linux-5.18.3-arch1-1-x86_64-with-glibc2.35 64 Bits
Graphics card: NVIDIA GeForce GTX 1660 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 515.48.07

Blender Version
Broken: version: 3.2.0, branch: makepkg (modified), commit date: 2022-06-08 10:22, hash: e05e1e3691
Worked: version: 3.1.2, branch: master, commit date: 2022-03-31 17:40, hash: cc66d1020c3b

Short description of error
I have a similar feeling here, although the compiling time was quite long for both, version 3.1.2 does not have to recompile them when re-opening the scene (cached). Version 3.2 recompile the whole set of shaders.
I tested one scene of mine with a heavy node graph, times were measured with a stopwatch once hitting the Material Preview button.

3.1.2: > 90s (first time) / 1.5s (other times)
3.2: >120s (everytime)

As for the viewport performances, version 3.1.2 offers realtime navigation, version 3.2 is really laggy.

3.1.2: 30 FPS
3.2: 1.3 FPS

**System Information** Operating system: Linux-5.18.3-arch1-1-x86_64-with-glibc2.35 64 Bits Graphics card: NVIDIA GeForce GTX 1660 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 515.48.07 **Blender Version** Broken: version: 3.2.0, branch: makepkg (modified), commit date: 2022-06-08 10:22, hash: `e05e1e3691` Worked: version: 3.1.2, branch: master, commit date: 2022-03-31 17:40, hash: `cc66d1020c3b` **Short description of error** I have a similar feeling here, although the compiling time was quite long for both, version 3.1.2 does not have to recompile them when re-opening the scene (cached). Version 3.2 recompile the whole set of shaders. I tested one scene of mine with a heavy node graph, times were measured with a stopwatch once hitting the Material Preview button. - 3.1.2: > 90s (first time) / 1.5s (other times) - 3.2: >120s (everytime) As for the viewport performances, version 3.1.2 offers realtime navigation, version 3.2 is really laggy. - 3.1.2: 30 FPS - 3.2: 1.3 FPS

Sun Kim commented

2022-06-20 02:17:16 +02:00

Related reports #98901. #98989

Pratik Borhade commented

2022-06-20 07:50:08 +02:00

Added subscribers: @fclem, @PratikPB2123

Pratik Borhade commented

2022-06-20 07:50:08 +02:00

Changed status from 'Needs Triage' to: 'Needs Developer To Reproduce'

Pratik Borhade commented

2022-06-20 07:50:08 +02:00

Thanks for the report
I've also noticed some differences in shader compiling between 3.2 and 3.1
I'm guessing the same commit as Germano said in #98901 : 80859a6cb2
@fclem , can you check?

As for the viewport performances, version 3.1.2 offers realtime navigation, version 3.2 is really laggy.

Can confirm this as well

Thanks for the report I've also noticed some differences in shader compiling between 3.2 and 3.1 I'm guessing the same commit as Germano said in #98901 : 80859a6cb2 @fclem , can you check? --- > As for the viewport performances, version 3.1.2 offers realtime navigation, version 3.2 is really laggy. Can confirm this as well

Thilo Mack commented

2022-06-21 18:56:47 +02:00

Added subscriber: @thilo.mack

Rodrigo commented

2022-06-25 18:09:54 +02:00

Added subscriber: @Rodrigo_S.T

Pratik Borhade commented

2022-06-28 06:25:42 +02:00

Added subscriber: @QBer

MACHIN3 commented

2022-07-07 07:43:43 +02:00

Added subscriber: @MACHIN3

Jon Henry M. Faltis 9077149 commented

2022-07-13 20:55:29 +02:00

Added subscriber: @geocentric_wage

Andreas Resch commented

2022-07-14 08:05:11 +02:00

Added subscriber: @AndreasResch

Andreas Resch commented

2022-07-14 08:05:11 +02:00

I hope something can be done about this. For comparison I opened the classroom scene and switched from Solid Mode to Material Preview Mode in Blender 2.79b and Blender 3.2.

Blender 2.79b - 7s
Blender 3.2 - 90s

Specs: Windows 10, Ryzen 3700X, 64GB RAM, RTX 3060

In general switching to Material Preview Mode takes between 30s in 120s. When you open dozens of scene each day, you can do the math how much time that costs. This is s serious problem and it hasn't been addressed in over a year now.

I hope something can be done about this. For comparison I opened the classroom scene and switched from Solid Mode to Material Preview Mode in Blender 2.79b and Blender 3.2. Blender 2.79b - 7s Blender 3.2 - 90s Specs: Windows 10, Ryzen 3700X, 64GB RAM, RTX 3060 In general switching to Material Preview Mode takes between 30s in 120s. When you open dozens of scene each day, you can do the math how much time that costs. This is s serious problem and it hasn't been addressed in over a year now.

Boyd Mouritsen commented

2022-07-22 20:36:42 +02:00

Added subscriber: @boydmouritsen

Boyd Mouritsen commented

2022-07-22 20:36:42 +02:00

This one commit 80859a6cb2
seems to have caused some major performance regressions in various areas across Blender. How many does it have to have before it gets reverted? Something needs to be done, instead of ignoring it like we are doing now.

This one commit 80859a6cb2 seems to have caused some major performance regressions in various areas across Blender. How many does it have to have before it gets reverted? Something needs to be done, instead of ignoring it like we are doing now.

Joaquim Berenguer commented

2022-07-31 14:00:25 +02:00

In #98865#1394287, @boydmouritsen wrote:
This one commit 80859a6cb2
seems to have caused some major performance regressions in various areas across Blender. How many does it have to have before it gets reverted? Something needs to be done, instead of ignoring it like we are doing now.

I'm really worried about this one because it will let me stack in V3.1 for very long time as my machine is quite new and no way to change it. Hope will get reverted back to as it was in next 3.3 release as is supposed to be LTS.

> In #98865#1394287, @boydmouritsen wrote: > This one commit 80859a6cb2 > seems to have caused some major performance regressions in various areas across Blender. How many does it have to have before it gets reverted? Something needs to be done, instead of ignoring it like we are doing now. I'm really worried about this one because it will let me stack in V3.1 for very long time as my machine is quite new and no way to change it. Hope will get reverted back to as it was in next 3.3 release as is supposed to be LTS.

Paul Szajner commented

2022-08-06 01:11:21 +02:00

Added subscriber: @sozap

Isaac Croasmun commented

2022-10-19 21:20:45 +02:00

Added subscriber: @VerdeStudios

Jeroen Bakker commented

2022-11-11 09:03:26 +01:00

Closed as duplicate of #98989

Jeroen Bakker closed this issue

2022-11-11 09:03:26 +01:00

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3.2 eevee bad performance #98865