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New Mac Pro build - Lumetri dropping frames

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Dan PowersNew Mac Pro build - Lumetri dropping frames
by on Oct 14, 2016 at 6:04:02 pm

Hi gang, I could use some input from the barn.
I searched and didnt find a previously answered question so here goes.
New build.
Mac Pro 2013 3.5GHz 6Core Xeon E5
Flash Sys drive
64 GB ram
AMD Fire Pro D500
OSX 10.11.6
Premiere Pro CC 2015.4
BlackMagic UltraStudio 4K 10.8.1

Source clip for testing:
File Size: 830.42 MB
Image Size: 1920 x 1080
Frame Rate: 59.94 10:00 duration
Apple ProRes 4444

46TB Raid 5 NAS via Thunderbolt 2 (BMD Disk Test shows 990GBsec Write and 940GBsec Read)

Plays back with zero dropped frames on timeline with no Lumetri or effects.
Increase Saturation in Lumetri from 100 to 101 and now same clip on same timeline drops 143 frames.
Same clip, no Lumetri, add scale, no frames dropped.
Same clip add rotation, frames drop like crazy.
I have tried it with Sequence setting set for Max and Max and with those unchecked with similar results.

I am thinking bad video card... thoughts?


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Chris BorjisRe: New Mac Pro build - Lumetri dropping frames
by on Oct 14, 2016 at 11:05:11 pm
Last Edited By Chris Borjis on Oct 14, 2016 at 11:05:47 pm

I've noticed poor playback performance any time Lumetri f/x are used from day 1.

You'll need to render the entire sequence if you want smooth playback with f/x on them.

Or did you render and still have problems?

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Dan PowersRe: New Mac Pro build - Lumetri dropping frames
by on Oct 19, 2016 at 2:33:28 pm

It doesnt allow a render. Highlight it and render and it just plays back the clip with dropped frames and all.

Dan Powers
P3 Media
Austin, TX

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Peter GarawayRe: New Mac Pro build - Lumetri dropping frames
by on Oct 19, 2016 at 10:19:32 pm

Hi Dan,

To render, make sure to select Render In to Out from the Sequence menu.

For the performance issues you're seeing. I have a few questions.

1. Do you have any 3rd party hardware/software installed?
2. Does the performance change if you disable the GPU renderer?
3. Does the performance change if your work outside of the Color workspace?
4. Does the media type matter? Or is it the same for all media formats?


Peter Garaway
Premiere Pro

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