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FCP on 8 core – Real Sluggish – Has this ever happened to you before?
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[Elijah Lynn] “Even after I close all of the sequences etc, my green bar “preview” is not clear and often fuzzy. “
That’s correct and a product of the Dynamic playback resolution. You can set this to “Full” resolution (or Best, whatever it’s called) and FCP will either not playback certain sections if it can’t or you will see the full resolution video.
Personally, i stay in Dynamic all the time.
Walter Biscardi, Jr.
Biscardi Creative Media
HD and SD Production for Broadcast and Independent Productions.STOP STARING AND START GRADING WITH APPLE COLOR Apple Color Training DVD available now!
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[walter biscardi] “We’re running 10GB on our OctoCore since last year with no issues.”
I’ve always been amazed that you got that to work, as we never could on our early 2008 Octo. I’m not sure what ram modules you have, but we tried every conceivable combination using theoriginal two 1GB modules with the two 4GB modules and never got it to work. Had issues in FCP, as well as general issues with machine speed. Had to pull the two 1GB modules out, and all has been well since.
In speaking to Apple and reading both the FCP tech note and the general tech note for ram in an Octo (specifically early 2008), something even more interesting materialized. Apple claims that not only must you use matched pairs on each riser, but one of these two tech notes referred to not mixing sizes of modules as well. That was an eye opener, as we now know that we need to stay with all 4GB modules from now on. Kind of a drag, but after watching our Octo run like a “one lung tractor”, I’m not deviating from the Apple mandate…
Mitch Ives
Insight Productions Corp.
mitch@insightproductions.com -
[walter biscardi] “Your FW drives are the weak link. They are pretty slow for extensive pro res editing. Especially the GRAID 2 units which I had a lot of issues with them being particularly slow. I sent them back. My original GRAID’s are much faster than the 2’s were.
If you can step up to eSATA or SAS/SATA you’ll get much better performance. “
Walter’s right. In addition, I would go with a minimum of four drives, and if you’re serious, make it eight. I see this all the time… people buy the Ferrari, and then they try to use 12″ tires. There is no point in buying the big dog machine if you aren’t going to match it to a big dog array.
Mitch Ives
Insight Productions Corp.
mitch@insightproductions.com -
[Elijah Lynn] “I now realize that even though my system had tons of Ram left Final Cut can only use 2560 MB (2.5 GB) of it!!! When Snow Leopard comes out and the new final cut on top of it I will be able to have my 20 sequences open no problem and probably raise it another 20 too!”
According to Apple, FCP can use 4Gb of ram, but no more. Motion can use 8Gb of ram, and I’m not sure what Color can use… Walter probably knows…
Mitch Ives
Insight Productions Corp.
mitch@insightproductions.com -
[Mitch Ives] “I’m not sure what Color can use… Walter probably knows…”
Nope, really don’t know actually. Color is more dependent on the graphics card for performance anyway.
Walter Biscardi, Jr.
Biscardi Creative Media
HD and SD Production for Broadcast and Independent Productions.STOP STARING AND START GRADING WITH APPLE COLOR Apple Color Training DVD available now!
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Well, I guess I assumed that since that is the maximum allowable that you can set in the Final Cut Pro System Settings > Memory & Cache tab.
I think they are fibbing 😉
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Hi Wayne,
I removed the apple factory ram and put 2 matched x 2 GB sticks slots 1 & 2.
It may be a bit faster but I am not noticing much of an increase. I do know that using compressor with four instances in my quick cluster eats up my ram pretty quick, especially when I have another 8 core as a node that it is administering. So, I need more memory. I am upgrading it with another 8 GB now so I can use compressor to its fullest and run the other 8 core node at its fullest.
It sure is nice chomping a video down with distrubuted segmenteing and 16 cores. Now I just gotta get some Gigabit going on.
Hopefully FCS 3 and Snow Leopard will give me the improvements I am looking for.
One thing that really slows me down is Primatte Keyer Pro as it does not use GPU and only uses 1 core, good but extremly slow. DV Matte Pro is super fast as it uses GPU.
Anyone have a suggesting for a keyer that uses GPU and all the cores and has great quality?
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