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JohnnyFlash  
#1 Posted : Thursday, February 21, 2019 11:47:42 AM(UTC)
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Hey Everyone,

I know that there aren't a lot of us doing 4K production, but I have run into a weird problem.

I was running a GTX 1080 w/ 8GB of RAM and was regularly hitting 100% memory usage with all my Cameras and NDI sources.

So, I thought clearly I needed a card with more RAM. Enter the Titan RTX w/ 24GB of RAM. Sadly, I'm hitting 100% with the same number of sources.

Is this a problem with vMix not using all my GPU Memory? Or it is something else?

-Jerry
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thanks 1 user thanked JohnnyFlash for this useful post.
prass on 3/5/2019(UTC)

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admin  
#2 Posted : Thursday, February 21, 2019 12:23:25 PM(UTC)
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JohnnyFlash  
#3 Posted : Thursday, February 21, 2019 6:36:37 PM(UTC)
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That's a useful answer.

So how big is this buffer?

It seems that a 4K input takes about 12% of this buffer? Am I in the ballpark?

I know that my stream is out of the ordinary.

We have 9 Cameras, 4 of which are 4K.
We're also using Titler Pro for our overlays which add another 3 4K NDI sources. (Looks like I may need to switch to GT Designer)

Also we have a number of inputs that have full screen overlay frames.

Overall, our stream looks great, and I'm happy I'm using vMix.


I'm just trying to come up with solutions that I can implement with greater knowledge of the internals.
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ggudnason  
#4 Posted : Tuesday, March 5, 2019 4:44:20 AM(UTC)
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Try enabling high input performance mode in vmix

Details here https://www.vmix.com/kno...2/optimising-performance
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prass  
#5 Posted : Tuesday, March 5, 2019 7:40:23 AM(UTC)
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Originally Posted by: ggudnason Go to Quoted Post
Try enabling high input performance mode in vmix

Details here https://www.vmix.com/kno...2/optimising-performance


I am using Vmix from 6 years. I have read all patch notes sines then. All knowlegebase, and i can't accept 3 different GPU-s, 2 different configuration and same performance. Next step is RTX 2080 TI and Radeon 7. 2 weeks i am reading game forums, Nvidia forums and DirectX forums to understand what is going on.
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prass  
#6 Posted : Wednesday, March 6, 2019 4:15:08 AM(UTC)
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Nevermind, with new patch, default settings and new preset (this take me 5 hours), now i can use 4 GB of video memory! Thanks Tim and Martin
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Rodrigo Rey  
#7 Posted : Tuesday, July 9, 2019 10:31:49 PM(UTC)
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Originally Posted by: JohnnyFlash Go to Quoted Post
That's a useful answer.

So how big is this buffer?

It seems that a 4K input takes about 12% of this buffer? Am I in the ballpark?

I know that my stream is out of the ordinary.

We have 9 Cameras, 4 of which are 4K.
We're also using Titler Pro for our overlays which add another 3 4K NDI sources. (Looks like I may need to switch to GT Designer)

Also we have a number of inputs that have full screen overlay frames.

Overall, our stream looks great, and I'm happy I'm using vMix.


I'm just trying to come up with solutions that I can implement with greater knowledge of the internals.


Hi

Send to us your backstage (pictures), cameras, audio positions

Thanks
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hfabeby  
#8 Posted : Monday, December 30, 2019 6:31:59 AM(UTC)
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Originally Posted by: prass Go to Quoted Post
Nevermind, with new patch, default settings and new preset (this take me 5 hours), now i can use 4 GB of video memory! Thanks Tim and Martin


witch patch? How do you get it? Can you share it
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daniel514  
#9 Posted : Thursday, August 13, 2020 10:08:52 PM(UTC)
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Originally Posted by: prass Go to Quoted Post
Nevermind, with new patch, default settings and new preset (this take me 5 hours), now i can use 4 GB of video memory! Thanks Tim and Martin

Please share with us which patch you are talking talking about!
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alba4347  
#10 Posted : Monday, April 26, 2021 4:17:05 AM(UTC)
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Faced the same issue and was not able to find any way to change the GPU memory cache size.

BUT!
Just today found a workaround that helped remove this limitaton - Resizable bar:
https://www.vmix.com/kno...th-resizable-bar-support

Can confirm that it works like a charm on ASUS TUF X299 MARK2 + i9-7900X + GTX3060

Just don't forget to disable Compatibility Support Module (CSM) in MB bios, as recommended here:
https://nvidia.custhelp....bar-firmware-update-tool
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