http://lttng.org/docs/#doc-channel
http://www.cnblogs.com/suncoolcat/p/3366045.html
http://blog.csdn.net/ganggexiongqi/article/details/6664331
http://v.youku.com/v_show/id_XNTk1MzYwNDky.html
http://blog.csdn.net/xsckernel/article/details/17794551
原文：http://www.cnblogs.com/zengkefu/p/5965361.html