Severe performance issues.

[Sgt_Hindsight]

So to spec this out.
Im running a I9-7920X (12 cores, 24 threads) at 2.9Ghz, 64Gbs of ram at 3200mhz, Raid-0 NVME drives for sysdrive and storage. And ontop of that a RTX 2080Ti card.

Fusion 360 consistently locks up, has a hard time rendering modesl, rotating and even just do basic cam work.
If the models get any complexer than 10 features, the application can hardly sustain itself.
Funny thing it doesnt really pull any ram, doesnt use cpu at all, and the 2 threads that uses the GPU is hardly working.

This has been a consistent problem since the last 5 updates or so.. Something i thought would solve itself.
Now its coming to a point were we cannot record tutorials or teaching materials without getting interupted. And no, we are not recording on the same machine were running the software. We had to get a elgato capture box and run the hdmi signal to a second computer for recording because of fusion360.

Please, any suggestions at all?

[wmhazzard]

Can you attach an f3d file of a model that runs slow to see if it is the model itself that is the problem or the computer?

[Sgt_Hindsight]

I really doubt that its the file.. or the computer.. I run Solidworks 2020, and Inventor without any issues at all, and that is with screen recording going or zoom for the classes..

It is only a fusion 360 issue..

I included the simple lathe part i were fighting today..

[jeff_strater]

can you share an example model here?  Do you experience the same effects on every model, or is it only specific models?  If you create a very simple design, does it show the same behavior?

There are some things in a model that will cause Fusion to be very slow:  Large sketches (e.g. importing a large SVG), large sketch patterns, for instance, can all create a design that is very slow under edit.  If this is the problem, there are recommendations that will improve the performance.  It's also important to know which operations in particular are slow.  You mention rendering, rotating and basic cam work, but a video of exactly which specific operations are slow would help.  It also could be a more general problem, such as an out of date graphics driver, or some anti-virus software that is using up bandwidth.

A lot of Fusion operations are single-threaded in nature (geometry operations), so it may look like CPU utilization is low if you have a large number of cores.  On the GPU side, the GPU is only used for rendering the scene in Fusion, so if the bottleneck is somewhere else, then a powerful GPU does you no good.

So, if you can share an example model, we can take a look.

[Sgt_Hindsight]

I have shared a model above.. that is well simple.. no weird sketches, and some cam procedures, that were used to test out a Okuma LB15 (OSP5000 specific postprocessor).

[Sgt_Hindsight]

And yes its regardless of model it will always stutter and lock up, become unresponsive and all the good bits that makes it unusuable longer periods of time.. I have all together stopped doing assmeblies in fusion for a long while now due to it.

[jeff_strater]

thanks for the design.  It seems to work OK here, although I don't know exactly what operations you are doing.  I tried regenerating a tool path, simulating the entire machining steps, view rotation, etc, and those all seem fine.  Do you see different behavior?

[Sgt_Hindsight]

Adding in some screenshots.. as said fusion is not really pulling any resources, but as soon as i try to twist and turn that model, it starts locking and stutters.. atm the settings for DX is set to auto.. ive tried both DX9 and DX11 with no changes..

[Sgt_Hindsight]

You are on a Mac.. on my mac pro laptop it works fine.. not a single issue.. 
Its only on my windows machine that i see issues..

But yeah i usually cannot turn a model while running simulations for example that usually ends up in a non responding process..

[jeff_strater]

definitely sounds like a graphics issue to me.  Good that you tried DX9, that can sometimes be the cause.  Other than that, I'd try updating the graphics driver for your card.  I don't think this is a Fusion-wide problem, at least not with that design.

Also worth trying:  Run the Graphics Diagnostic command:

and check the "limit effects to optimize performance" on the bottom of that form:

Also, review your preferences in the Graphics tab:

Finally, try different combinations of effects.  Some effects are expensive (anti-aliasing and ambient occlusion):

[Sgt_Hindsight]

I will play around with it, this would be the settings i run.. its the latest gpu driver for that card, and with auto detect on the DX driver.. most things turned off, simple mode and transparency set to better performance..

Its prob. not fusion wide, but we see the same at the school windows computers (around 40 of em) pupils are always bitching about the applications is locking up for them, but those machines runs 1080ti card and older gen8 i7s with 32gbs of ram so nothing super fancy.

[Sgt_Hindsight]

And this was the settings i have under graphics.

[seth.madore]

I've got a 2-3 year old PC, nothing fancy; Ryzen 7, Vega 56. Certainly lower powered than your computer, across all points. I do get a small stutter at the beginning of movement, and I've been able to pinpoint that to the In-Process Stock display, coupled with the 3D Mouse movements. Can you turn off IPS and NOT use your 3dConnexion mouse (assuming you have one)? Just to see if behavior changes...