用Tensorflow训练越来越慢，CPU利用率上不去

1. 训练效率低？GPU利用率上不去？快来看看别人家的tricks吧～
   https://zhuanlan.zhihu.com/p/53345706

2. GPU捉襟见肘还想训练大批量模型？谁说不可以
   https://zhuanlan.zhihu.com/p/46972713

3. Tensorflow训练模型越来越慢
   https://blog.youkuaiyun.com/Xin_101/article/details/90232659

4. 解决Tensorflow训练模型越到后面计算效率越慢的问题
   https://blog.youkuaiyun.com/tiny_zgb/article/details/88988797

5. 如何让TensorFlow模型运行提速36.8%
   https://blog.youkuaiyun.com/lyc_yongcai/article/details/73239693

6. Tensorflow 训练时运行越来越慢，重启后又变好是什么原因？
   https://www.zhihu.com/question/58577743

7. Why sometimes tensorflow runs slower and slower with the process of training?
   https://stackoverflow.com/questions/39070708/why-sometimes-tensorflow-runs-slower-and-slower-with-the-process-of-training