René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":" Performance issues in 7.%20ResNet/train.py(P2)","articleBody":"Hello,I found a performance issue in  `7.%20ResNet/train.py` ,\r\n[train_db = train_db.shuffle(50000).map](https://github.com/Keyird/DeepLearning-TensorFlow2/blob/118e16981498ffd73e9b98c3805d0666fd0c70bc/7.%20ResNet/train.py#L21) was called without **num_parallel_calls**.\r\nI think it will increase the efficiency of your program if you add this.\r\n\r\nThe same issues also exist in [test_db = test_db.map](https://github.com/Keyird/DeepLearning-TensorFlow2/blob/118e16981498ffd73e9b98c3805d0666fd0c70bc/7.%20ResNet/train.py#L24) ,\r\n[db = db.shuffle(1000).map](https://github.com/Keyird/DeepLearning-TensorFlow2/blob/118e16981498ffd73e9b98c3805d0666fd0c70bc/4.%20AlexNet/AlexNet.py#L99),\r\n[db = db.shuffle(1000).map](https://github.com/Keyird/DeepLearning-TensorFlow2/blob/118e16981498ffd73e9b98c3805d0666fd0c70bc/5.%20VGG11/VGG11.py#L99),\r\n\r\nHere is [the documemtation of tensorflow](https://tensorflow.google.cn/api_docs/python/tf/data/Dataset?hl=en#map) to support this thing.\r\n\r\nLooking forward to your reply. Btw, I am very glad to create a PR to fix it if you are too busy.","author":{"url":"https://github.com/DLPerf","@type":"Person","name":"DLPerf"},"datePublished":"2021-08-20T13:35:36.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":0},"url":"https://github.com/3/DeepLearning-TensorFlow2/issues/3"}