简单计算:
http://www.mysqlcalculator.com/

相关文档:
http://mingxinglai.com/cn/2016/04/mysql-memory-usage-formula/#top

http://imysql.com/node/97

通过观察status调优:
http://5434718.blog.51cto.com/5424718/1207526
http://wangwei007.blog.51cto.com/68019/967278

二进制相关变量:
http://skypegnu1.blog.51cto.com/8991766/1687849
http://book.51cto.com/art/201012/237803.htm
http://www.cnblogs.com/abclife/p/5102553.html

tmp_table_size 说明:
Created_tmp_disk_table,Created_tmp_files,Created_tmp_tables
http://www.cnblogs.com/thrillerz/p/3950575.html

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