Maniphest T71866

Blender 2.81 Sculpting on ubuntu 18.04 fills memory gradually
Closed, Archived
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Assigned To
Pablo Dobarro (pablodp606)
Authored By
Ako (Akov)
Nov 24 2019, 7:38 PM
Tags
  • BF Blender
  • Sculpt, Paint & Texture
Subscribers
Ako (Akov)
Germano Cavalcante (mano-wii)
Maciej Jutrzenka (Kramon)
YAFU (YAFU)

Description

System Information
Operating system: Ubuntu 18.04
Graphics card: GEForce 940 MX

Blender Version
Broken: (example: 2.81, Linux, Glibc217,)

Blender 2.81 fills memory when i'm Sculpting gradually, and does not free it on exit. I have to restart my system to free the memory.( in this latest build it frees memory a little but not completely). it works fine in 2.80 and previous versions but in all 2.81 versions I tried I had this problem, I was hoping in the final build, blender team solve this problem but it still exists there and with all refinements in 2.81 for sculpting I can't use it. BTW I'm using Dyntopo for sculpting. When I look at "monitor" app in Ubuntu it shows that "Xorg" fills memory.

Event Timeline

Ako (Akov) created this task.Nov 24 2019, 7:38 PM
Bartosz Moniewski (monio) assigned this task to Pablo Dobarro (pablodp606).Nov 25 2019, 1:38 AM
YAFU (YAFU) added a subscriber: YAFU (YAFU).Nov 25 2019, 2:26 AM

Please give information about the driver you use. For example you share here the result of each of the following lines from the terminal:

sudo lshw -c video
cat /proc/driver/nvidia/version
Ako (Akov) added a comment.Nov 25 2019, 6:00 AM

hi, this is return of 'lshw' command:

*-display                 
     description: VGA compatible controller
     product: HD Graphics 620
     vendor: Intel Corporation
     physical id: 2
     bus info: pci@0000:00:02.0
     version: 02
     width: 64 bits
     clock: 33MHz
     capabilities: pciexpress msi pm vga_controller bus_master cap_list rom
     configuration: driver=i915 latency=0
     resources: irq:127 memory:ed000000-edffffff memory:c0000000-cfffffff ioport:f000(size=64) memory:c0000-dffff
*-display
     description: 3D controller
     product: GM108M [GeForce 940MX]
     vendor: NVIDIA Corporation
     physical id: 0
     bus info: pci@0000:01:00.0
     version: a2
     width: 64 bits
     clock: 33MHz
     capabilities: pm msi pciexpress bus_master cap_list rom
     configuration: driver=nvidia latency=0
     resources: irq:129 memory:ee000000-eeffffff memory:d0000000-dfffffff memory:e0000000-e1ffffff ioport:e000(size=128) memory:ef000000-ef07ffff

and my nvidia driver version:

NVRM version: NVIDIA UNIX x86_64 Kernel Module  435.21  Sun Aug 25 08:17:57 CDT 2019
GCC version:  gcc version 7.4.0 (Ubuntu 7.4.0-1ubuntu1~18.04.1)
Philipp Oeser (lichtwerk) added a project: Sculpt, Paint & Texture.Nov 25 2019, 2:39 PM
Maciej Jutrzenka (Kramon) added a subscriber: Maciej Jutrzenka (Kramon).Nov 26 2019, 12:03 AM

can u upload file when your memory usage is for example at 10gb RAM? we could download it.. and test what is our ram usage. with such file..

Ako (Akov) added a comment.EditedNov 26 2019, 4:56 PM

its a big file with 184mb size, and I just have 8gb of RAM. can't upload it here.
Update: I tried many times, it's not the file, I mean just opening a file that I sculpted before doesn't fills RAM, it fills some parts of my RAM, but when I close that file, my RAM gets free again, but when I sculpt, 'Xorg' consumes RAM gradually until there it fills it, and when I close the file or even blender my RAM doesn't get free. it seems somehow a garbage collector doesn't work fine. also when I open a big file, it shows that blender consumed my RAM and not Xorg, but after some sculpting 'Xorg' consumes RAM too.
I hope I could explain the situation well.

Ako (Akov) added a comment.Dec 1 2019, 4:23 PM

any news from this?

Germano Cavalcante (mano-wii) added a subscriber: Germano Cavalcante (mano-wii).Dec 3 2019, 3:54 PM

Can you see if the same happens if you reduce the amount of undo steps?
Preferences -> System -> Undo Steps

Ako (Akov) added a comment.Dec 3 2019, 4:32 PM
In T71866#823156, @Germano Cavalcante (mano-wii) wrote:

Can you see if the same happens if you reduce the amount of undo steps?
Preferences -> System -> Undo Steps

Hi, I tested it, it was the default 32 undo steps, reduced it to 2, it somehow slowed rate of filling RAM, but it's still there.

Germano Cavalcante (mano-wii) added a comment.Dec 3 2019, 4:39 PM

The same happens if you reduce to zero?
Could you describe the steps to reproduce the problem?

Ako (Akov) added a comment.Dec 3 2019, 4:46 PM

Blender doesn't let me to reduce it to Zero, minimum is 2.
I don't know how to reduce the problem actually, but when I reduced undo steps to 2, the amount of RAM that Xorg fills, grows more slowly than when undo steps is 32.

Ako (Akov) added a comment.Dec 3 2019, 4:50 PM
In T71866#823190, @Ako (Akov) wrote:

Blender doesn't let me to reduce it to Zero, minimum is 2.
I don't know how to reduce the problem actually, but when I reduced undo steps to 2, the amount of RAM that Xorg fills, grows more slowly than when undo steps is 32.

sorry, I misunderstood your comment, read reproduce to reduce.
I just open blender and sculpt and use Dyntopo, nothing more, nothing less.

Germano Cavalcante (mano-wii) lowered the priority of this task from 90 to 80.Dec 3 2019, 5:00 PM
Ako (Akov) added a comment.Dec 13 2019, 1:29 PM

I changed my DE to Gnome and the problem is solved, it seems Xserver has some problems with blender!

Germano Cavalcante (mano-wii) changed the task status from Unknown Status to Unknown Status.Dec 13 2019, 1:56 PM

In this case it is even harder to know what is going on.
If necessary, I think it is better to make another report describing in detail how to reproduce the problem.
Closing this.