I’ll try barbershop later but I just ran BMW (since it’s quick), and these are the times I got, which reflect the ratios I’ve seen in tests I’ve done with my own scenes:
| Build | Settings | Time |
|---|---|---|
| Vanilla 2.8 RC1 | Default | 2:54.66 |
| Bone Studio | Default | 2:53.17 |
| E-Cycles | Default (Auto tiles off) | 1:50.47 |
| E-Cycles | Auto tiles on | 1:41.98 |
| E-Cycles | Auto tiles on + CUDA boost + Adaptive Sampling (0.001) + Scrambling distance (0.3) - Image was virtually identical | 1:35.75 |
| E-Cycles | Same as above but with Scrambling Distance 0.1 - Very minor difference in reflections and noise pattern | 1:23.19 |
You must have something misconfigured or you’re experiencing a bug.