So I've been testing Premiere Pro CS6 quite a bit recently, thanks to its unwillingness to use RED Rocket. While testing I noticed Premiere's "Export Media" feature is slow as molasses.
I mentioned in another thread I have installed some desktop monitoring gadgets to see what the CPU and GPUs are doing. While keeping a close eye on those, I ran an Export Media job (high fps 3K/4K/5K footage to NTSC DVD MPEG2, with maximum render depth and max render quality both disabled) and discovered why it takes my rather fast PC 35 minutes to export a 2-minute project: CPU is hardly used at all during Export and GPUs do nothing.
CPU usage pattern is especially telling: it stays practically idle for 80% of the time. Once every 5 seconds CPU use jumps to 15-20%, only to drop back down to idle right away. And according to monitoring gadgets, neither GPU is used at all: they remain at 0% all through the export.
Is your Export behaving the same way? How do you make Exports out of Premiere?