http://danga.com/words/
http://www.tkk7.com/Files/jinfeng_wang/performance%20tuning_1.zip
http://www.tkk7.com/Files/jinfeng_wang/performance%20tuning_2.7z
http://blog.zhangjianfeng.com/article/743
http://www.tkk7.com/BlueDavy/archive/2008/09/03/226749.html