Some recent posts in this thread have started to drift off topic.
It would be great if we could keep tihis thread focused on Red Rushes Full Debayer performance problems on the new Nehalem Macs.
So - good news is that setting red rushes up to render multiple clips does indeed improve performance on the 8core Nehalem quite a bit when doing a full Debayer render. 6clips at once and "auto" on cores per clip seemed to be the best recipie. With those new settings I could improve the 8core Nehalem from 5m12s/100frames (at 1 clip an once) to 1m32s/100frames.
The bad news is that at 1m32s/100frames the new 8core Nehalem is only about 20% faster than the 2 year old 4core (1m54s/100frames).
I'd say the problem is still there... And, while it helped, the main issue must lie somewhere else than in clips-at-once/cores-pre-clip -settings...
Anyone else out there that is getting great FULL DEBAYER WITH RSX performance out of red rushes on an 8core Nehalem that would like to contribute the usual HW/SW specs (RAM, RR version, QT version, Mac OSX version etc etc.)
The RAM was delivered after the computer got here and I stuck it into the free slots (slots no. 4). On boot-up a "RAM utility" asked me to re-allocate the bigger modules to the no. 2 slots - hardly intuitive, and I'm sure better people than me have done the same "misstake" on the new Nehalems.
Really, this is a huge and real problem and I'm trying to figure it out and share with others here on the forum.
Still scratching my head.