Metal Display On Mac - Performance Tuning

stevebaer · July 19, 2023, 4:06pm

With the latest WIP, metal is the default display technology on Mac and we are at a point where the majority of display features in Rhino are implemented with metal. This means we are now trying to find and fix performance issues. If you have a model that appears to be underperforming on Mac, please let us know so we can see if anything can be done to improve the display speed.

Thanks,
Steve

wim · July 20, 2023, 6:41pm

3 posts were merged into an existing topic: Slow canvas UI (with multiple elements)

rudolf.neumerkel · July 19, 2023, 8:33pm

In order to be more helpful, what do you mean by underperforming?

For example: Legacy OpenCL display seems to be a lot slower in RH8 overall, compared to RH7. Metal brings the speed up again, but only about on par with RH7 OpenCL for some files. Would such a example file be helpful?

stevebaer · July 19, 2023, 8:38pm

Rhino 8 running Metal should outperform Rhino 7 running OpenGL on all existing models and in most cases heavily outperform. If that does not seem to be the case, I would love to examine a 3dm to see what can be done.

I don’t care about any results with Rhino 8 running OpenGL. This is legacy technology in Rhino 8 and will eventually go away.

Hope that helps.

rudolf.neumerkel · July 19, 2023, 8:41pm

Got it and also just to be clear I am still on an Intel Mac with AMD GPU, but the improvements should still apply I guess.

I am digging up some old models… where should I send them? To the McNeel upload?

stevebaer · July 19, 2023, 8:43pm

McNeel upload addressed to me or direct email to me (steve@mcneel.com) would work.

Metal is supported and works on Intel Macs with AMD GPUs. The improvements should apply.

rudolf.neumerkel · July 19, 2023, 8:47pm

Ok I will send files that underperform compared to RH7 and perform only equally (as an improvement is expeceted).

rudolf.neumerkel · July 19, 2023, 8:53pm

I uploaded the first file, slower in RH8 and waaaayyy slower in Ghosted mode

another one: 3x slower than RH7

stevebaer · July 19, 2023, 8:58pm

Thank you; we will start digging into these models this week.

rudolf.neumerkel · July 19, 2023, 9:13pm

I uploaded 2 more, 4 in total. These are some really old files, so dont take the modeling approaches too seriously

rudolf.neumerkel · July 19, 2023, 9:16pm

if you need more let me know I will continue digging my Rhino files haha

stevebaer · July 19, 2023, 10:06pm

With regards to your 200121_task_2 model, I get the following TestMaxSpeed results in shaded mode:

Rhino 7: 8.8 frames per second
Rhino 8: 30 frames per second

I’m testing on an M2 so results will be different, but 8 seems 3x faster than 7 instead of 3x slower. What kind of results are you seeing?

By the way, I do see some spots that can be further optimized for this model in Rhino 8

rudolf.neumerkel · July 19, 2023, 10:20pm

Great to hear, keep these optimizations coming

On my Intel MBP16" with full screen and ZEA command run, shaded mode, I am getting
RH7: 30fps
RH8: 12fps

stevebaer · July 19, 2023, 10:24pm

How old is this MBP16"? Can you run SystemInfo and post results here?

rudolf.neumerkel · July 19, 2023, 10:26pm

MBP16_systemInfo.txt (6.4 KB)

There you go!

Considering that it is a 2019 Intel model, the M2 should significantly outperform it, no?

stevebaer · July 20, 2023, 1:52am

I would assume that an M2 would outperform a 2019 Intel, but that isn’t really the issue. I want to make sure the Rhino 8 outperforms Rhino 7 on your 2019 Intel.

stevebaer · July 26, 2023, 3:05am

@rudolf.neumerkel I’ve been focused on your 200121_task_2 file this last week. There are still more optimizations to be made for this file, but you should hopefully see a significant improvement with the WIP that we just released.

Akash · July 26, 2023, 4:08am

Hi
I don’t know if this Qualify…?
The same mesh here, when being rotated directly in the view port as an independent mesh, is about 10 times faster compare to when it is set as a mesh in GH, and rotated in the Rhino ViewPort.

Is this expected…? it is terribly slow to work with !
[The same mesh tested in shaded view on a maximized viewport.]

[the rhino file is 80Mb, too large to add here, I can upload it if needed?]
thanks a lot
akash

wim · July 26, 2023, 9:12am

Hi Akash -

I’m not sure (:

I’m not seeing that here. I get 34.71 FPS with the Rhino geometry and 26.53 FPS with the Grasshopper geometry in a quick test.

I’m on an elder MacBook Air with a small screen, so things like “maximized viewport” mean different things. Also, the default Shaded display mode shows mesh wires, so you have a customized display mode.

Yes, please. Include your SystemInfo and the custom display mode as well.
-wim

Akash · July 26, 2023, 9:52am

Hi @wim
thanks
I sent you the mesh headprop just now.
The Gh file is just like in the image. in the above report, ‘I did see it initially on a largish file, that is currently highly bottled-necked,’ ‘so I tested on a clean new file with just these 3 components’
the speed in the rhino viewport was the same.

I don’t have a custom display, I simply unchecked some stuff [like mesh wire].

Here’s the size the viewport as listed in the properties tab
and the display setting

Summary

Rhino 8 SR0 2023-7-25 (Rhino WIP, 8.0.23206.14396, Git hash:master @ 1e9fadf24e2aade96dde6e2eafa110f6c1e80245)
License type: Commercial, build 2023-07-25
License details: Cloud Zoo
Expires on: 2023-09-08

Apple macOS Version 13.4.1 (c) (Build 22F770820d) (Physical RAM: 96Gb)
Mac Model Identifier: Mac14,6
Language: en-TH (MacOS default)

Apple M2 Max (OpenGL ver:4.1 Metal - 83.1)

OpenGL Settings
Safe mode: Off
Use accelerated hardware modes: On
Redraw scene when viewports are exposed: On

Anti-alias mode: 4x
Mip Map Filtering: Linear
Anisotropic Filtering Mode: High

Vendor Name: Apple
Render version: 4.1
Shading Language: 4.10
Maximum Texture size: 16384 x 16384
Z-Buffer depth: n/a
Maximum Viewport size: 16384 x 16384
Total Video Memory: 72 GB
Graphics: Apple M2 Max
Displays: Unknown (255dpi 2x)

Metal GPU Family Apple 7
Metal GPU Family Common 3
Metal GPU Family Mac 2
Graphics processors
Apple M2 Max
Color LCD (1728 x 1117 @ 120.00Hz)

USB devices
None

Bluetooth devices
None

Third party kernel extensions
None

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Thanks a lot
Akash

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