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Joined: 4/16/2020(UTC) Posts: 2  Location: Alberta
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I’m running version 24.0.0.66 currently, configured to operate at 60p. Machine specs are:
i7-9700k @ 3.6 GHz
16 GB RAM
GeForce GTX1660ti
Gigabyte Z390 motherboard
Render time is hovering at 10-13 ms
GPU memory: 30%
CPU: 27%
Total usage: 52%
Two SDI camera inputs via BMD decklink duo at 1080p60
Cam 1 dropped frames: 120 over the past 5 hours
Cam 2 dropped frames: 230 over the past 5 hours
Output dropped frames: 0
One NDI input at 1080p60 on dedicated switch
We’re seeing stuttering on SDI inputs and outputs when a majority of the image content is moving (camera is not moving). If movement is insignificant both camera inputs are smooth. The stuttering does not occur in other software (OBS), thus I’m leaning towards this being a vMx related issue.
Suggestions on first steps of isolating the source of the problem?
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Rank: Advanced Member
Groups: Registered
Joined: 10/20/2023(UTC) Posts: 121  Thanks: 3 times
Was thanked: 16 time(s) in 12 post(s)
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Originally Posted by: Lances  I’m running version 24.0.0.66 currently, configured to operate at 60p. Machine specs are:
i7-9700k @ 3.6 GHz
16 GB RAM
GeForce GTX1660ti
Gigabyte Z390 motherboard
Render time is hovering at 10-13 ms
GPU memory: 30%
CPU: 27%
Total usage: 52%
Two SDI camera inputs via BMD decklink duo at 1080p60
Cam 1 dropped frames: 120 over the past 5 hours
Cam 2 dropped frames: 230 over the past 5 hours
Output dropped frames: 0
One NDI input at 1080p60 on dedicated switch
We’re seeing stuttering on SDI inputs and outputs when a majority of the image content is moving (camera is not moving). If movement is insignificant both camera inputs are smooth. The stuttering does not occur in other software (OBS), thus I’m leaning towards this being a vMx related issue.
Suggestions on first steps of isolating the source of the problem? There are several versions of the Gigabyte Z390, and you haven't specified which one. But it must be a version with all the x16 PCIe CPU lanes of the i7-9700K available only on GPU PCIe slot Given your hardware, for an optimal configuration, change the motherboard to an AsRock Z390 Taichi Ultimate, which allows the x16 PCIe CPU lanes to be distributed across multiple PCIe slots. PCIe slot 2 = x8 = GPU PCIe slot 4 = x4 = Decklink Duo PCIe slot 5 = x4 = PCIe 3.0 x4 card - RJ45 10 Gbps (or PCIe 3.0 x4 card + M.2 SSD for Windows) For you needs, test to see if it's better to have : 10 Gbps LAN via pcie card and SSD Windows on mobo port M.2 via chipset Z390 or Windows SSD M.2 via pcie card and LAN 10 Gbps via chipset Z390
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