spark - favorer/record GitHub Wiki
https://clouddrive-dgg.huawei.com/preview/qview/9e9cd1ee58e329cab7e2e5ae2ce88131?fileSize=1887297&name=high%20performance%20managed%20languages.pdf&url=https://clouddrive-dgg.huawei.com/api/dgE32678AA809A6D2B91CFBF44615E0FEE805CA5C82081BBEAC4147CB5/9e9cd1ee58e329cab7e2e5ae2ce88131/high%20performance%20managed%20languages.pdf
http://www.cnblogs.com/yurunmiao/p/4949650.html