Welcome, Guest
Username: Password: Remember me
  • Page:
  • 1
  • 2

TOPIC: Huge Clip Drag Lag under 10.3.4, Sierra 10.12.6 Help!

Huge Clip Drag Lag under 10.3.4, Sierra 10.12.6 Help! 03 Mar 2019 06:28 #99120

  • tj7
  • tj7's Avatar
  • OFFLINE
  • Expert Boarder
  • Posts: 108
  • Karma: 0
@joema thanks again.

Re: "An easy way to rule that in/out is make a copy of the project, load it, select all clips in the timeline with CMD+A, then do Edit>Remove Effects. If the problem goes away or dramatically lessens, it's related to some effect. If not it's the project structure."

Done. Made zero difference!
As far as effects go, I use no third party effects - only FCPX native ones.
FX or no, my (much) shorter projects (ie 5 -10 mins) have about 75% less lag.
So again it appears to be that a 90-100 min project with reasonable complexity is inherently causing the lag.

Re: "Likewise, updating to the latest Apple Pro Video Formats (currently 2.1) is a good idea: support.apple.com/kb/DL1988?locale=en_US"

Will back up again and try this. However, again, if this was the prob, surely my shorter projects would have just as much lag?

Advice re: using an internal SSD with a connector cable is a great one. Looking into... will take some time....
The administrator has disabled public write access.

Huge Clip Drag Lag under 10.3.4, Sierra 10.12.6 Help! 04 Mar 2019 11:49 #99130

  • joema
  • joema's Avatar
  • NOW ONLINE
  • Platinum Boarder
  • Posts: 1293
  • Thank you received: 268
  • Karma: 26
tj7 wrote:
....
...Done. Made zero difference...So again it appears to be that a 90-100 min project with reasonable complexity is inherently causing the lag.....

The previous drag lag problem before 10.3.2 was related to number of short stacked instances on the timeline, especially many short instances such as title clips or SFX audio bites. It wasn't the timeline length per se -- many people use timelines 1-2 hours long.

I myself saw that on a 12-minute fully rendered proxy timeline which had 413 total clips. Many of those were four stacked video lanes for split screen. That was with all media on a RAID-0 Thunderbolt SSD array. The behavior continued after stripping off *all* effects (not just 3rd part effects). This mostly went away with 10.3.2.

It may be some version has come back or this is some new undiscovered variant. The fact you "only" see 75% improvement on a 5-10 min project implies it's somehow inherent to the project structure. If you see *any* lag on a 5 min project (outside of CPU-intensive effects) there's something wrong -- either with your system, config, or how FCPX is handling that project.

William.caversham reports he sees this on Mojave and FCPX 10.4.5 on an iMac Pro. However I still think it's a good idea to try and test this on Mojave and 10.4.5 because it might not be the same thing. It's not wasted time and hardware because you sometimes need to boot on different macOS and FCPX versions for testing.

For anybody experiencing this problem it would help if you isolate the smallest test case which reproduces the problem, contact Apple Pro Apps support, and discuss with them.
The administrator has disabled public write access.

Huge Clip Drag Lag under 10.3.4, Sierra 10.12.6 Help! 09 Mar 2019 04:50 #99221

  • tj7
  • tj7's Avatar
  • OFFLINE
  • Expert Boarder
  • Posts: 108
  • Karma: 0
@joema thanks for all your advice.
There are a lot of fiddly, layered edits in my big timeline but yes, I do experience some lag in the smaller, simplest timelines as well. So there's something going on here which I may not be able to nut out until I try everything out via Mojave. I will report back....
The administrator has disabled public write access.
  • Page:
  • 1
  • 2