RAM budget

[0jeetparmar0]

W tensorflow/core/kernels/data/prefetch_autotuner.cc:52] Prefetch autotuner tried to allocate 154830848 bytes after encountering the first element of size 154830848 bytes.This already causes the autotune ram budget to be exceeded. To stay within the ram budget, either increase the ram budget or reduce element size

using donkeycar 4.5.1
jetson nano
host pc = main , tf= 2.15