https://www.sqlskills.com/blogs/paul/capturing-io-latencies-period-time/
http://www.sqlskills.com/blogs/paul/advanced-performance-troubleshooting-waits-latches-spinlocks/
http://www.sqlservercentral.com/blogs/all/
原文：http://www.cnblogs.com/zengkefu/p/6713131.html