# Poor performance Rhino 7

**URL:** <https://discourse.mcneel.com/t/poor-performance-rhino-7/176798>\
**Category:** Rhino\
**Tags:** windows, rhino7\
**Created:** [February 28, 2024, 3:00pm UTC](https://discourse.mcneel.com/t/poor-performance-rhino-7/176798 "2024-02-28T15:00:06Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![Harm\_Backx](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/harm_backx/32/475290_2.png) [@Harm\_Backx](https://discourse.mcneel.com/u/Harm_Backx)\
**Post date:** [February 28, 2024, 3:00pm UTC](https://discourse.mcneel.com/t/poor-performance-rhino-7/176798/1 "2024-02-28T15:00:06Z")

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Hi All,

I am experiencing freezing and laggin all the time using Rhino 7.

With the “testmaxspeed” command I run 3.15 fps with a file of 1240 MB.

Can you guys help me out?

GPU drivers are up to date as wel as Rhino 7 itself.

Rhino 7 SR36 2023-12-12 (Rhino 7, 7.36.23346.16351, Git hash:master @ 11a364321297eb8cdb34405a3308d8911f58706d)  
License type: Commercial, build 2023-12-12  
License details: Cloud Zoo

Windows 10 (10.0.19045 SR0.0) or greater (Physical RAM: 32Gb)

Computer platform: DESKTOP

Standard graphics configuration.  
Primary display and OpenGL: NVIDIA RTX A4000 (NVidia) Memory: 16GB, Driver date: 2-15-2024 (M-D-Y). OpenGL Ver: 4.6.0 NVIDIA 551.61  
\> Accelerated graphics device with 4 adapter port(s)  
- Windows Main Display attached to adapter port #0  
- Secondary monitor attached to adapter port #1  
- Secondary monitor attached to adapter port #2

OpenGL Settings  
Safe mode: Off  
Use accelerated hardware modes: On  
Redraw scene when viewports are exposed: On  
Graphics level being used: OpenGL 4.6 (primary GPU’s maximum)

Anti-alias mode: 8x  
Mip Map Filtering: Linear  
Anisotropic Filtering Mode: High

Vendor Name: NVIDIA Corporation  
Render version: 4.6  
Shading Language: 4.60 NVIDIA  
Driver Date: 2-15-2024  
Driver Version: 31.0.15.5161  
Maximum Texture size: 32768 x 32768  
Z-Buffer depth: 24 bits  
Maximum Viewport size: 32768 x 32768  
Total Video Memory: 16376 MB

Rhino plugins that do not ship with Rhino

Rhino plugins that ship with Rhino  
C:\Program Files\Rhino 7\Plug-ins\Commands.rhp “Commands” 7.36.23346.16351  
C:\Program Files\Rhino 7\Plug-ins\rdk.rhp “Renderer Development Kit”   
C:\Program Files\Rhino 7\Plug-ins\RhinoRenderCycles.rhp “Rhino Render” 7.36.23346.16351  
C:\Program Files\Rhino 7\Plug-ins\rdk\_etoui.rhp “RDK\_EtoUI” 7.36.23346.16351  
C:\Program Files\Rhino 7\Plug-ins\rdk\_ui.rhp “Renderer Development Kit UI”   
C:\Program Files\Rhino 7\Plug-ins\NamedSnapshots.rhp “Snapshots”   
C:\Program Files\Rhino 7\Plug-ins\RhinoCycles.rhp “RhinoCycles” 7.36.23346.16351  
C:\Program Files\Rhino 7\Plug-ins\Toolbars\Toolbars.rhp “Toolbars” 7.36.23346.16351  
C:\Program Files\Rhino 7\Plug-ins\3dxrhino.rhp “3Dconnexion 3D Mouse”   
C:\Program Files\Rhino 7\Plug-ins\Displacement.rhp “Displacement”

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<div class="post-metadata">

**Author:** ![Japhy](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/japhy/32/487647_2.png) [@Japhy](https://discourse.mcneel.com/u/Japhy)\
**Post date:** [February 28, 2024, 3:14pm UTC](https://discourse.mcneel.com/t/poor-performance-rhino-7/176798/2 "2024-02-28T15:14:58Z")

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We can take a look at your file if you zip & upload privately [here](https://www.rhino3d.com/upload), please put a link to this thread in the comments. Thanks

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<div class="post-metadata">

**Author:** ![Harm\_Backx](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/harm_backx/32/475290_2.png) [@Harm\_Backx](https://discourse.mcneel.com/u/Harm_Backx)\
**Post date:** [March 12, 2024, 2:27pm UTC](https://discourse.mcneel.com/t/poor-performance-rhino-7/176798/3 "2024-03-12T14:27:21Z")

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Hi Japhy,

Do you by any chance have some feedback regarding my performance issues?

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**Author:** ![clement](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/clement/32/759176_2.png) [@clement](https://discourse.mcneel.com/u/clement)\
**Post date:** [March 12, 2024, 2:36pm UTC](https://discourse.mcneel.com/t/poor-performance-rhino-7/176798/4 "2024-03-12T14:36:26Z")

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Hi @Harm_Backx,

in addition to what has been suggested by @Japhy, have you checked your large file for duplicate geometries (`_SelDup`) an bad objects (`_SelBadObjects`) ? If you run `_PolygonCount` command how many do you have ?

Is it faster in Shaded display mode compared to Rendered ? Is it file related at all ?

Without seeing the actual file we can only speculate…

\_  
c.

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<div class="post-metadata">

**Author:** ![Japhy](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/japhy/32/487647_2.png) [@Japhy](https://discourse.mcneel.com/u/Japhy)\
**Post date:** [March 12, 2024, 3:30pm UTC](https://discourse.mcneel.com/t/poor-performance-rhino-7/176798/5 "2024-03-12T15:30:21Z")

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> [@Japhy](#):
>
> please put a link to this thread in the comments. Thanks

I missed the upload (no link)

The file you send i about 2.3 gb and i’m getting 3.77 sec testMaxSpeed.

Its a fairly clean model, the Tolerances are rather high which does affect file size if the geometry is created at those tolerances (0.00002 mm)

There are nested blocks but exploding (for testing purposes) isn’t reducing maxspeed much.

Not seeing any improvement changing render mesh settings.

 ![image](https://global.discourse-cdn.com/mcneel/uploads/default/original/4X/f/9/2/f9258789251cd6eb4740870c0e7a6d999eb18890.png)

@theoutside or @pascal any large file recommendations?

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**Author:** ![pascal](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/pascal/32/479395_2.png) [@pascal](https://discourse.mcneel.com/u/pascal)\
**Post date:** [March 12, 2024, 3:56pm UTC](https://discourse.mcneel.com/t/poor-performance-rhino-7/176798/8 "2024-03-12T15:56:28Z")

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Hello- - I would use worksessions and break the file up in some way that makes sense in your workflow. At least use layer states or something to shut off parts of the model. It’s just a very large model. No doubt Rhino’s handling of this can be improved but for practical purposes, you’ll need to figure out some management strategies

[Worksession | Rhino 3-D modeling](http://docs.mcneel.com/rhino/8/help/en-us/commands/worksession.htm#:~:text=The%20Worksession%20command%20lets%20more,many%20users%20can%20see%20it).

-Pascal