这些警告不是在Mac OS上打印的，但是在Linux OS上有这些警告，这是什么意思？
2019-05-01 14:59:39.527151: I tensorflow/core/platform/cpu_feature_guard.cc:141] Your CPU supports instructions that this TensorFlow binary was not compiled to use: AVX2 AVX512F FMA
2019-05-01 14:59:39.560163: I tensorflow/core/platform/profile_utils/cpu_utils.cc:94] CPU Frequency: 2294605000 Hz
2019-05-01 14:59:39.561946: I tensorflow/compiler/xla/service/service.cc:150] XLA service 0x370dce0 executing computations on platform Host. Devices:
2019-05-01 14:59:39.562137: I tensorflow/compiler/xla/service/service.cc:158] StreamExecutor device (0): <undefined>, <undefined>