logo

Live Production Software Forums


Welcome Guest! To enable all features please Login or Register.

Notification

Icon
Error

Options
Go to last post Go to first unread
jip  
#1 Posted : Saturday, July 17, 2021 12:04:59 AM(UTC)
jip

Rank: Advanced Member

Groups: Registered
Joined: 7/23/2013(UTC)
Posts: 122
Estonia
Location: North

Thanks: 12 times
Was thanked: 13 time(s) in 11 post(s)
Has anyone else encountered an issue, where render time is higher when vMix is the active application? Conversely, having vMix running normally while having any window (e.g. Windows Explorer) on the foreground, in any window size, render times drop considerably?

I'm having an ongoing setup where the render times hover consistently between 20-35 ms with vMix on foreground and 11-19 ms with Explorer window in front.

System information:
vMix 4K 24.0.0.62, 1080p50 project
Windows 10
Core i7 8750H (edit 9750H)
RTX2060
mavik  
#2 Posted : Wednesday, July 21, 2021 5:18:48 AM(UTC)
mavik

Rank: Advanced Member

Groups: Registered
Joined: 4/23/2017(UTC)
Posts: 1,191
Man
Location: Germany

Thanks: 3 times
Was thanked: 168 time(s) in 150 post(s)
Are you running something else on te PCI bus except the GPU.
NVMe SSD
Capture card
....?

If, it might be that the PCI lanes get in conflict. The 8th gen i7 is 16 lane if I'm not wrong. The 16 lanes is full with your GPU already.
jip  
#3 Posted : Wednesday, July 21, 2021 6:15:35 AM(UTC)
jip

Rank: Advanced Member

Groups: Registered
Joined: 7/23/2013(UTC)
Posts: 122
Estonia
Location: North

Thanks: 12 times
Was thanked: 13 time(s) in 11 post(s)
Yes, I'm using external Thunderbolt enclosure with
Blackmagic Decklink Duo (1st gen) and
Blackmagic Intensity Pro (1st gen).

System disk is NVMe SSD.

I had a typo in CPU model (it's i7 9750H).

To me it sounds strange that opening Notepad or any other window to foreground would have an effect on PCI lane or other low-level hardware functions, leading to substantially different render times.
MartLeib  
#4 Posted : Wednesday, July 21, 2021 5:39:16 PM(UTC)
MartLeib

Rank: Advanced Member

Groups: Registered
Joined: 2/23/2017(UTC)
Posts: 189
Estonia

Thanks: 1 times
Was thanked: 52 time(s) in 42 post(s)
It may be due to integrated graphics. It is quite simple to find out, connect an external display, preferably using DisplayPort since it is usually connected straight to a dedicated GPU, HDMI may be connected through integrated graphics. Now if you move your vMix window to your external monitor, does the render time go lower? Also, does vMix state that you are running on RTX 2060? (Settings -> Performance)
mavik  
#5 Posted : Tuesday, July 27, 2021 5:06:18 AM(UTC)
mavik

Rank: Advanced Member

Groups: Registered
Joined: 4/23/2017(UTC)
Posts: 1,191
Man
Location: Germany

Thanks: 3 times
Was thanked: 168 time(s) in 150 post(s)
Originally Posted by: jip Go to Quoted Post
Yes, I'm using external Thunderbolt enclosure with
Blackmagic Decklink Duo (1st gen) and
Blackmagic Intensity Pro (1st gen).

System disk is NVMe SSD.

I had a typo in CPU model (it's i7 9750H).

To me it sounds strange that opening Notepad or any other window to foreground would have an effect on PCI lane or other low-level hardware functions, leading to substantially different render times.


I can highly recommend checking your system and pay attention to the components. It may have all the IO ports but it does not mean that all of this is getting full bandwidth connection inside the mobo.

I'm running a relatively old system with a E5-2630v4 and a P2200. My system is always relaxed so far.
Users browsing this topic
Forum Jump  
You cannot post new topics in this forum.
You cannot reply to topics in this forum.
You cannot delete your posts in this forum.
You cannot edit your posts in this forum.
You cannot create polls in this forum.
You cannot vote in polls in this forum.