Eevee Texture Time Out Causes Freezing #63349

New Issue

Ovionis · 2019-04-07T01:16:15+02:00

Ovionis commented

2019-04-07 01:16:15 +02:00

System Information
Operating system: Windows-7-6.1.7601-SP1 64 Bits
Graphics card: GeForce GTX 770/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 419.35

Blender Version
Broken: version: 2.80 (sub 54), branch: master, commit date: 2019-04-05 14:31, hash: d140e597a6
Worked: (optional)

Description of error
At seemingly random intervals, while running Eevee, Blender will completely freeze for several seconds, before resuming without any kind of acknowledgement of the freeze.
The interval is actually related to [Preferences >> System >> Memory & Limits] Texture Time Out and Garbage Collection Rate.

If you lower both of these to 1, if Eevee is running, Blender will freeze forever.
If you set them to around 5-10, the freezes will be frequent but you'll have a moment to stop something from in Blender.
If you set Texture Time Out to 0, this freeze stops.

It appears to be a hardware/performance thing though, because if I set the GL Texture Limit to 128, the freezes still occur at 1 & 1, just not forever (breaking Blender)

Instructions to reproduce
If you load this file and start Eevee, everything will run like normal.
However, if you drop the Texture Time Out and Garbage Collection Rate values, you should see the freezing problem.
_freezing_decimation.blend
This file contains a low-poly character with multiple materials and packed image textures.
The character is nude but they're so decimated, I don't think it matters.

I'm disabling Texture Time Out, to bypass this issue, since I don't think I care about what it does.

**System Information** Operating system: Windows-7-6.1.7601-SP1 64 Bits Graphics card: GeForce GTX 770/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 419.35 **Blender Version** Broken: version: 2.80 (sub 54), branch: master, commit date: 2019-04-05 14:31, hash: `d140e597a6` Worked: (optional) **Description of error** At seemingly random intervals, while running Eevee, Blender will completely freeze for several seconds, before resuming without any kind of acknowledgement of the freeze. The interval is actually related to [Preferences >> System >> Memory & Limits] Texture Time Out and Garbage Collection Rate. If you lower both of these to 1, if Eevee is running, Blender will freeze forever. If you set them to around 5-10, the freezes will be frequent but you'll have a moment to stop something from in Blender. If you set Texture Time Out to 0, this freeze stops. It appears to be a hardware/performance thing though, because if I set the GL Texture Limit to 128, the freezes still occur at 1 & 1, just not forever *(breaking Blender)* **Instructions to reproduce** If you load this file and start Eevee, everything will run like normal. However, if you drop the Texture Time Out and Garbage Collection Rate values, you should see the freezing problem. [_freezing_decimation.blend](https://archive.blender.org/developer/F6915979/_freezing_decimation.blend) This file contains a low-poly character with multiple materials and packed image textures. The character is nude but they're so decimated, I don't think it matters. I'm disabling Texture Time Out, to bypass this issue, since I don't think I care about what it does.

Ovionis commented

2019-04-07 01:16:15 +02:00

Added subscriber: @Phigon

Sebastian Parborg commented

2019-04-07 21:32:21 +02:00

Added subscriber: @ZedDB

Sebastian Parborg commented

2019-04-07 21:32:21 +02:00

Changed status from 'Open' to: 'Archived'

Sebastian Parborg closed this issue

2019-04-07 21:32:21 +02:00

Sebastian Parborg self-assigned this 2019-04-07 21:32:21 +02:00

Sebastian Parborg commented

2019-04-07 21:32:21 +02:00

This is not really a bug. If you set the value too low then blender will freeze because it is constantly loading and unloading textures into memory.

Ovionis commented

2019-04-08 06:40:42 +02:00

The bug isn't that setting it low will break Blender.
The bug is that by default this is enabled, and Blender will randomly freeze without any notification of what's going on.

The bug isn't that setting it low will break Blender. The bug is that by default this is enabled, and Blender will randomly freeze without any notification of what's going on.

Sebastian Parborg commented

2019-04-08 09:35:53 +02:00

Added subscriber: @fclem

Sebastian Parborg commented

2019-04-08 09:35:53 +02:00

@fclem any thoughts?

Sebastian Parborg commented

2019-04-08 09:36:53 +02:00

Changed status from 'Archived' to: 'Open'

Sebastian Parborg reopened this issue

2019-04-08 09:36:53 +02:00

Sebastian Parborg removed their assignment 2019-04-09 11:15:39 +02:00

Clément Foucault was assigned by Sebastian Parborg

2019-04-09 11:15:39 +02:00

Daniel Paul commented

2019-07-14 21:19:54 +02:00

Added subscriber: @DanielPaul

Daniel Paul commented

2019-07-14 21:19:54 +02:00

Same issue here, I get regular freezes in eevee and lookdev on win 10 and rc1.
This behavior is unchanged for round about 4 months now.
Set the timeout to 0 and the freezes are gone. :)

What does the timeout do exactly and is it necessary?

Same issue here, I get regular freezes in eevee and lookdev on win 10 and rc1. This behavior is unchanged for round about 4 months now. Set the timeout to 0 and the freezes are gone. :) What does the timeout do exactly and is it necessary?

blender-admin commented

2019-07-15 15:40:09 +02:00

This issue was referenced by daff18dd28

This issue was referenced by daff18dd286920c0636329c704c3758f90be0013

Brecht Van Lommel commented

2019-07-15 17:24:52 +02:00

Changed status from 'Open' to: 'Resolved'

Brecht Van Lommel closed this issue

2019-07-15 17:24:52 +02:00

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Eevee Texture Time Out Causes Freezing #63349