Undo - One step back takes very long #60418

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Marcus Papathoma · 2019-01-11T12:58:39+01:00

Marcus Papathoma commented

2019-01-11 12:58:39 +01:00

System Information
Operating system: Windows 10 Pro x64
Graphics card: Geforce GTX 1080Ti

Blender Version
Broken: all
Worked: never

Short description of error
Undo - To undo one step takes very long!

Exact steps for others to reproduce the error
I now had the time to prepare a testscene. At the Blender Conferece I think Sergey said, we should send a file to repoduce the problem. He or another developer will have a look!
The scene reflects the object and polycount, we have in our production files.
In other programs we use, with the same poly and object count, undo works in a second. So the object or polycount couldn´t be an excuse.
undo_test.blend
Open the attached Scene
Select one cube.
Rotate the cube.
Undo that step by clicking Ctrl+Z, count the time that it takes. On my system it was about 20sec. Thats a lot for only one undo step!
Please make undo faster!

I tested the attached scene on two different computers.
One at work. AMD Threadripper 1950X 16CoresQ3,4 GHz - here it takes 17sec do undo the cube rotation.
One at home. Intel Xeon E5-2697v3 2x14Cores@2,6GHz - here it takes only 21sec do undo the cube rotation.
But that is only one undo step. Undoing multiple undo steps takes longer.

I hope it is worth to investigate it further?!

**System Information** Operating system: Windows 10 Pro x64 Graphics card: Geforce GTX 1080Ti **Blender Version** Broken: all Worked: never **Short description of error** Undo - To undo one step takes very long! **Exact steps for others to reproduce the error** I now had the time to prepare a testscene. At the Blender Conferece I think Sergey said, we should send a file to repoduce the problem. He or another developer will have a look! The scene reflects the object and polycount, we have in our production files. In other programs we use, with the same poly and object count, undo works in a second. So the object or polycount couldn´t be an excuse. [undo_test.blend](https://archive.blender.org/developer/F6252982/undo_test.blend) Open the attached Scene Select one cube. Rotate the cube. Undo that step by clicking Ctrl+Z, count the time that it takes. On my system it was about 20sec. Thats a lot for only one undo step! Please make undo faster! I tested the attached scene on two different computers. One at work. AMD Threadripper 1950X 16CoresQ3,4 GHz - here it takes 17sec do undo the cube rotation. One at home. Intel Xeon E5-2697v3 2x14Cores@2,6GHz - here it takes only 21sec do undo the cube rotation. But that is only one undo step. Undoing multiple undo steps takes longer. I hope it is worth to investigate it further?!

Marcus Papathoma commented

2019-01-11 12:58:39 +01:00

Added subscriber: @machieb

Marcus Papathoma changed title from ~~Undo - One step back takes more than a minute~~ to Undo - One step back takes very long

2019-01-14 10:26:18 +01:00

Andrew Williams commented

2019-01-20 01:41:53 +01:00

Added subscriber: @sobakasu