A difference of 1 minute could come from a number of factors, including background idle processes, different OSs and handling of multithreading, etc. The behavior of the CPU usage is normal. What TG2 does is spawn render threads to handle titles across the image sequentially until rendering is done. When one tile is done rendering, that CPU thread will be assigned to a new tile. When it's out of rendering to do, that thread will become idle, even if others are still working. TG2 does not do tile subdivision nor can it assign multiple cores to a single thread. So what happens is the last tile of the image is always rendered using just 1 thread. All renders will end that way since there is inevitably one tile that takes longer than the others. This is an inefficiency in the renderer, but it's difficult to dynamically split or reassign work tasks. It's something that can hopefully be addressed in the future.
- Oshyan
