其实就是英文所表述的字面意思，一般而言可以忽略。参考 Tensorflow issues: Not creating XLA devices, tf_xla_enable_xla_devices not set, This TensorFlow binary is optimized with oneAPI Deep Neural Network Library (oneDNN) to use the following CPU instructions in performance-critical operations: AVX2 FMA To enable them in other operations, rebuild TensorFlow with the appropriate compiler flags. · Issue #46479 · tensorflow/tensorflow · GitHub