Benchmarking model described in Real-time Portrait Segmentation on Smartphones by Prisma on MNN framework.
Mi 9T Pto; Snapdragon 855
Forward type: **Vulkan** thread=4** precision=2
--------> Benchmarking... loop = 8
Resize error for batchnorm/mul_1, code=2
[ - ] mdepth.mnn max = 276.845ms min = 274.095ms avg = 275.366ms
Vulkan don't support for 151, type=ReLU, Special case