Slow performance with GTX1080 TI, no GPU usage in Fusion

I thought it might be faster now on macOS 10.13.6...

But for example adding a simple call out from jayaretv in Fusion leads to a playback of 2fps in the timeline..though the blue line tells me that it is pre-rendered?

In Apple's activity monitor I see almost no GPU usage in the history, mostly from screen updates only....
But CPU usage is always between 100% - 200%, meaning only 1 core used out of 4.

And adding particle effects is terrible and painfully slow.....

Tried different GPU settings...OpenCL, CUDA etc...no difference...

And GTX1080 TI works as in OctaneRender is shows GPU 100% usage when rendering...

The screenshots show the GPU usage on Macbook Pro with a GT650M and on MacPro with a GTX1080TI rendering a 2seconds 2000 particles clip.

where is your cache set at? File type?

If it is blue, is playing back the cache file.

As mentioned in another thread...GTX10180 TI isn't used at all on DRS 15.1.1.005 on my Mac machine...

Maybe I have to fake another machine ID to kick in...

All other software have no issues using the GPU....dunno what they programmed into DRS (o;

Okay I answer here....not that we are posting back and forth between two threads (o;

Thanks for the pointer

I dropped in a random 10s seconds 1080p 60fps clip and dropped the "Film Damage" onto it...
DIdn't saw any blue line...it just plays back at 60fps with high GPU usage

So I hardly assume now that GPU is disabled totally inside Fusion...
Always wondered why the "Run Fusion always on CPU" has gone in preferences...

Guess BMD needs still to figure out the GPU RAM error problems...

Tried now a Fusion template form jayaretv.com, the lunar call out...

When the timeline shows a blue line above meaning caching is done...and I click play,
it starts playing a few frames at around 5 fps then suddenly stucks...
the timeline pointer continues though....when the clip is finished the timeline windows displays the last frame...

During caching no GPU and small CPU usage is seen.....
sometimes the caching start all over again a complete red line is displayed...

Did You try to cache another clip and play that one to exclude cache issues?

The first try was just with composite clip from the solid color generator....with added particle effect...

The second try was with a real clip and the openfx film damage effect, no issues here...

The last try was with another clip with added fusion template for the callout...

Are you sure you don't you have any issue with writing permissions on the cache disk, or with sleeping/waking cache disks ?

As mentioned in another thread...GTX10180 TI isn't used at all on DRS 15.1.1.005 on my Mac machine...

Maybe I have to fake another machine ID to kick in...

All other software have no issues using the GPU....dunno what they programmed into DRS (o;

I'm not a Fusion expert, but I know that only some specific elements of it uses the GPU. Mostly it seems to be single threaded CPU workloads. Fusion being a high end compositor traditionally used in high end pipelines is meant to be used with distributed rendering where you offload the renders to a cluster of machines. Then it doesn't matter that it renders at 2fps on a single machine.

Of course, now that Fusion is inside Resolve I find it likely they will rewrite the render engine at some point to take advantage of new tech, or at the very least allow it to render in render farms again.

Well as stated from one BMD employee here in August....it will take another year until Fusion integration is complete...

Yes...CPU load is very low in all situations..Fusion, Color, Rendering...

For the caching...I tried two seperate Samsund SSD NVMe drives...startup volume and a freshly formatted drive....made no difference in playing back cached renderings...

Just as a remark

Find it strange that GPU issues haven't been resolved ( clear sign is the absence of the run Fusion on CPU option) and BMD already announced on Nvidia site they work on RTX2080 support

With the simple callout placed in Fusion and going back to edit mode...

It starts caching..as the blue line in the timeline is drawn...but after few seconds it is wiped out and all red...
timeline viewer flickers shortly and the caching starts all over again...

Installed 15.0.1 and used now another clip and applied stabilization and a lower 3rd animated title inside edit tab...

Caches just fine and blue line stays....can move timeline pointer back and forth without problems..

So definitively something to do with caching of Fusion inside Resolve...

Still the same with 15.1.2.008 on macOS 10.13.6.

The caching starts, end suddenly and starts all over again...this runs endlessly....
and as it uses heavily CPU (little GPU though) the system is not so responsible anymore...

This is only for effects done inside Fusion tab....for example Fusion titles set inside edit tab are fine...

Ticket opened with BMD...

This is a capture of my MacBook Pro running a simple CallOut inside Fusion on a compound clip...
At the end it is clearly visible that it renders the cache forever...

BMD tested the same template I was using...seems there is a problem with the templates from JayAreTV.com.

Nevertheless....

Doing a 5 second 1080p24 compound clip...open it in Fusion...
add a pEmitter/pRenderer set to 100 particles...
back in edit tab the caching runs only once which is fine...

But playing back stutters after 2 seconds...

Would not expect this on a i7-7700 with a GTX1080 Ti...

Same stuttering also on Linux with i7-7700 and a GT1030.


There the screen recording:

Richard i keep thinking that something is wrong in the actual cache file.

Can you dig in the preferences and your hard disk and find where that cache is? Once there, can you check if it is actually redrawing or static? Can you check the speed of that particular folder and see if you have any sort of bandwidths hiccup?

Driving me nuts (o;

Tried two drives...EVO 960 and 970 NMVe SSDs..write speed around 1.8GBytes/sec and Read around 2.2GBytes/sec..

When I delete the CacheClip folder it is recreated as soon I open the project...and I see 120 .dvcc cache files
around 140kBytes in size...well for the 100 particles it seems right...

When playing back continuously I don't see any open CacheFiles:

Mac:~ klingler$ lsof | grep CacheClip
Mac:~ klingler$

What puzzles me is that when I play the Fusion clip inside Fusion tab continuously it doesn't stutter at all..plays nicely..and uses around 25% of GPU usage.

Back in edit tab stutters totally..displays around 2 frames per 5 seconds clip..and GPU usage is down...

So somehow Fusion is doing right here....

Attached the Fusion settings:

Can you make a drp with the problem, i can try to open it in another machine.

Make a clear project
Do a compound clip with bars
Do the particle fusion
See if the issue persist.

Make a drp and see if you can send it to me somehow (wetransfer or Dropbox or Google drive).

I will see if i can test it on my box

Stupid question, i wonder if there is an issue where the fusion odds writing huge size files when caching...

So no drp to do?

@davorin

I do a test but to re try : go step by step please.. (if necessary: you have to go step by step and save at each increment ...)

GPU_USAGE_FUSION.jpg

Result :

Deliver.jpg

Hope this help

Salue Jean

I will try tomorrow as it is already late here in \.ch

Dunno if using a real video clip in Fusion should show better performance in edit tab than just using a compound clip....but gonna try your Fusion settings...

Still don't know how Fusion caching should influence playback performance in edit tab...
inside Fusion it is just using the 1080 GPU and plays in realtime...

Also don't believe it has to do with APFS filesystem as the same behaviour is seen on my Linux box...

And I never had issues with 1080p60 recording om macOS with my Intensity Pro 4k card.


I still have a ticket open with BMD for this issue (besides the other Linux background merge crash ticket

BMD support answers really fast...but mostly they turn it into their way of saying "we don't support this hardware, setup, blah whatever" Feels like chatting with Amazon support (o;

sorry, i opened a project 1080, with some clips, I added the particles and let the fusion render (blue bar)
hit play in the color page: 24.00 fps steady.

we need your DRP.

Here it is:

Particles.drp.zip

(23.14 KiB) Downloaded 61 times

thanks
richard

Middle of the clip dips down to single digit FPS for me. 1950X, 2 1080Ti, NVMe cache drive, but none of them seem to be busy doing anything

Interesting....

Just a simple particle emitter...nothing fancy....

But when you play inside Fusion tab?
Does it play fine? Takes maybe two or three loops...

But when you play inside Fusion tab?
Does it play fine? Takes maybe two or three loops...

Plays horrible, then after 3 loops it's totally smooth. If I go back to Color page after that, it also plays smoothly, but I think that's because I have the Fusion cache set to auto.

But back in edit tab it stays at 1fps?

Guess we both need a workstation dual 32 core CPU and four Titan GPUs as this is what the developers use

Anything less is unsupported....and yes...you need to use a bloody old 3.x kernel distro as well...they don't want you to use any new repository software or security updates (o;

Edit tab is 24FPS for me. I'm on Windows 10, so not apples to apples exactly.

Just tried on another hardware with Windows 10 Pro and CentOS 7...

The exact same behavior when playing back in the edit tab...
In Fusion tab it plays fine after 2 or three loops...

For anyone having trouble playing back cached clips from Fusion ....

This is a bug and the workaround is to put a transparent clip on top of the fusion cached layer on the edit tab so you can force resolve to recache. Problem solved

take care