Time required for rendering in cycle increased in the latest build. #50001

New Issue

perfection cat · 2016-11-12T02:38:07+01:00

perfection cat commented

2016-11-12 02:38:07 +01:00

System Information
OS: windows10 pro
GPU: NVidia GTX-1070
MEMORY:16GB

Blender Version
Broken: 2.78.2(Hash: 7fd2efa)
Worked: 2.78.1(Hash: cf8f6d1)

Short description of error
It was finished in the former build in 54 seconds, but takes 63 seconds in the latest build.
Hash of the build before having used it. (Hash: cf8f6d1)

Hash of the latest build. (Hash: 7fd2efa)

System Info:
system-info.txt
Exact steps for others to reproduce the error
Based on a (as simple as possible) attached .blend file with minimum amount of steps

**System Information** OS: windows10 pro GPU: NVidia GTX-1070 MEMORY:16GB **Blender Version** Broken: 2.78.2(Hash: 7fd2efa) Worked: 2.78.1(Hash: cf8f6d1) **Short description of error** It was finished in the former build in 54 seconds, but takes 63 seconds in the latest build. Hash of the build before having used it. (Hash: cf8f6d1) ![Hash_cf8f6d1.png](https://archive.blender.org/developer/F397723/Hash_cf8f6d1.png) Hash of the latest build. (Hash: 7fd2efa) ![Hash_7fd2efa.png](https://archive.blender.org/developer/F397725/Hash_7fd2efa.png) System Info: [system-info.txt](https://archive.blender.org/developer/F397727/system-info.txt) **Exact steps for others to reproduce the error** Based on a (as simple as possible) attached .blend file with minimum amount of steps

perfection cat commented

2016-11-12 02:38:07 +01:00

Changed status to: 'Open'

perfection cat commented

2016-11-12 02:38:07 +01:00

Added subscriber: @sindra1961

Brecht Van Lommel commented

2016-11-13 02:00:39 +01:00

Added subscriber: @brecht

Brecht Van Lommel commented

2016-11-13 02:00:39 +01:00

Changed status from 'Open' to: 'Archived'

Brecht Van Lommel closed this issue

2016-11-13 02:00:39 +01:00

Brecht Van Lommel self-assigned this 2016-11-13 02:00:39 +01:00

Brecht Van Lommel commented

2016-11-13 02:00:39 +01:00

This is due to 93ace71bd. Initially we had the light sampling threshold optimization enabled in all existing files, but now it's done only in new files for backwards compatibility.

You can try manually setting it to 0.05 to get the performance the same again.

This is due to 93ace71bd. Initially we had the light sampling threshold optimization enabled in all existing files, but now it's done only in new files for backwards compatibility. You can try manually setting it to 0.05 to get the performance the same again.

perfection cat commented

2016-11-13 05:27:30 +01:00

I tried it, but still take a lot of time for five seconds.
I think that there is the different cause.

I tried it, but still take a lot of time for five seconds. I think that there is the different cause.

Brecht Van Lommel commented

2016-11-13 22:25:38 +01:00

Changed status from 'Archived' to: 'Open'

Brecht Van Lommel reopened this issue

2016-11-13 22:25:38 +01:00

perfection cat commented

2016-11-14 12:30:02 +01:00

A rendering domain is small in the latest build.
Does it contribute to take rendering time more?

Before build

Latest build

A rendering domain is small in the latest build. Does it contribute to take rendering time more? Before build ![before_build.png](https://archive.blender.org/developer/F398807/before_build.png) Latest build ![latest_build.png](https://archive.blender.org/developer/F398809/latest_build.png)

Sergey Sharybin commented

2016-11-15 11:15:33 +01:00

Added subscriber: @Sergey

Sergey Sharybin commented

2016-11-15 11:15:33 +01:00

Are you using auto tile size addon?

perfection cat commented

2016-11-15 14:26:24 +01:00

No, I do not use it.
However, I validated it, but the result was the same.

No, I do not use it. However, I validated it, but the result was the same.

perfection cat commented

2016-11-15 15:09:37 +01:00

Though I open the same blend file, the default size of the tile is different.
I make tile size the same and tried it, but after all the latest build is slower.
(I tried it again in Hash:69470e3.)

Though I open the same blend file, the default size of the tile is different. I make tile size the same and tried it, but after all the latest build is slower. (I tried it again in Hash:69470e3.)

perfection cat commented

2016-11-15 15:34:55 +01:00

I found something.

Error Message

File "F:\Blender_Git\build_windows_Full_x64_vc12_Release\bin\Release\2.78\scripts\addons\render_auto_tile_size.py", line 149, in engine_is_gpu
  return engine == 'CYCLES' and device == 'GPU' and userpref.system.compute_device_type != 'NONE'

AttributeError: 'UserPreferencesSystem' object has no attribute 'compute_device_type'
Traceback (most recent call last):

File "F:\Blender_Git\build_windows_Full_x64_vc12_Release\bin\Release\2.78\scripts\addons\render_auto_tile_size.py", line 177, in on_scene_update
  threads = get_threads(context, device)
File "F:\Blender_Git\build_windows_Full_x64_vc12_Release\bin\Release\2.78\scripts\addons\render_auto_tile_size.py", line 208, in get_threads
  if engine_is_gpu(engine, device, userpref):
File "F:\Blender_Git\build_windows_Full_x64_vc12_Release\bin\Release\2.78\scripts\addons\render_auto_tile_size.py", line 149, in engine_is_gpu

I found something. ![error.png](https://archive.blender.org/developer/F401176/error.png) **Error Message** ``` File "F:\Blender_Git\build_windows_Full_x64_vc12_Release\bin\Release\2.78\scripts\addons\render_auto_tile_size.py", line 149, in engine_is_gpu return engine == 'CYCLES' and device == 'GPU' and userpref.system.compute_device_type != 'NONE' ``` AttributeError: 'UserPreferencesSystem' object has no attribute 'compute_device_type' Traceback (most recent call last): ``` File "F:\Blender_Git\build_windows_Full_x64_vc12_Release\bin\Release\2.78\scripts\addons\render_auto_tile_size.py", line 177, in on_scene_update threads = get_threads(context, device) File "F:\Blender_Git\build_windows_Full_x64_vc12_Release\bin\Release\2.78\scripts\addons\render_auto_tile_size.py", line 208, in get_threads if engine_is_gpu(engine, device, userpref): File "F:\Blender_Git\build_windows_Full_x64_vc12_Release\bin\Release\2.78\scripts\addons\render_auto_tile_size.py", line 149, in engine_is_gpu ``` ****

Sergey Sharybin commented

2016-11-15 15:46:17 +01:00

This is an error from auto tile size addon (so you DO use this addon ;)

This addon is broken since dd92123.

@brecht, i will let you to deal with this, i was never up to that compat breaking.

This is an error from auto tile size addon (so you DO use this addon ;) This addon is broken since dd92123. @brecht, i will let you to deal with this, i was never up to that compat breaking.

perfection cat commented

2016-11-16 11:15:47 +01:00

@Sergey
No, I did not use it.
I ran it in factory settings and chose GPU device and tried it after I set 0.05 for light sampling.
Because you asked me about that addon, I validated it later.

@Sergey No, I did not use it. I ran it in factory settings and chose GPU device and tried it after I set 0.05 for light sampling. Because you asked me about that addon, I validated it later. ![noaddon.png](https://archive.blender.org/developer/F401567/noaddon.png)

Sergey Sharybin commented

2016-11-16 11:21:37 +01:00

Did you check that tile size is the same across cf8f6d1 (the one which was fast for you) and the current latest builds?

Did you check that tile size is the same across cf8f6d1 (the one which was fast for you) and the current latest builds?

perfection cat commented

2016-11-16 14:12:00 +01:00

@Sergey, @brecht
I tested it in the latest build. (Hash: e17b92f)
I excluded that addon, and rendering was completed in the fastest time when I set most suitable tile size. (50sec)
Thank you for advice.

@Sergey, @brecht I tested it in the latest build. (Hash: e17b92f) I excluded that addon, and rendering was completed in the fastest time when I set most suitable tile size. (50sec) Thank you for advice.

blender-admin commented

2016-11-17 02:16:21 +01:00

This issue was referenced by blender/cycles@6dd03c01b5

This issue was referenced by blender/cycles@6dd03c01b5a8890d442b2ff1bc52810cb2134a17

blender-admin commented

2016-11-17 02:16:21 +01:00

This issue was referenced by 60409841a4

This issue was referenced by 60409841a4b9308575b108933f5e4c0d96e64f7e

blender-admin commented

2016-11-17 02:24:39 +01:00

This issue was referenced by blender/blender-addons@fcdeee23b3

This issue was referenced by blender/blender-addons@fcdeee23b3ce58010692e949df65e4013279a499

blender-admin commented

2016-11-17 02:24:39 +01:00

This issue was referenced by blender/blender-addons@71daaea8cd

This issue was referenced by blender/blender-addons@71daaea8cd689acdcc958a8c711a5b64156165f3

Brecht Van Lommel commented

2016-11-17 02:28:30 +01:00

Changed status from 'Open' to: 'Resolved'

Brecht Van Lommel closed this issue

2016-11-17 02:28:30 +01:00

perfection cat commented

2016-11-26 02:37:00 +01:00

I'm sorry.
I thought that I reported that it became same as the past to you.

@Sergey Sharybin (sergey), @brecht Van Lommel (brecht)
I tested it in the latest build. (Hash: e17b92f)
I excluded that addon, and rendering was completed in the fastest time when I set most suitable tile size. (50sec)
Thank you for advice.

I confirmed it in Hash: 411836d.
Thank you.

I'm sorry. I thought that I reported that it became same as the past to you. > @Sergey Sharybin (sergey), @brecht Van Lommel (brecht) > I tested it in the latest build. (Hash: e17b92f) > I excluded that addon, and rendering was completed in the fastest time when I set most suitable tile size. (50sec) > Thank you for advice. I confirmed it in Hash: 411836d. Thank you.

perfection cat commented

2017-02-09 12:57:43 +01:00

Processing time becomes 5% long.

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Time required for rendering in cycle increased in the latest build. #50001