Hi there
We are using 6.2.1.50R with a range of Maya, C4D and AE renders currently in the queue. Most of our machines are HP Z800, Z620 with 48GB ram and 12 physical cores. Our render farm machines match them.
Only in the case of Maya renders do we notice that most of the machines render a frame about the same speed. However, when the render blades and some of the 620s get to 100% in the slave window, they sit on 100% for a significant amount of time before starting the next frame. To give you an idea, the Z800s are showing a per frame render time of 20-30 seconds and the Z620s more like 2m with the render blades closer to 3 minutes. The 800s do have faster SSD system drives but it seems odd that would be the issue.
We have also tried submitting jobs with batches of 10 frames per machine and we see the same thing between frames making the average time the same as the single frame renders.
We are using Maya 2015 with extensions and service pack 5.
Any help appreciated.