http://hutaow.com/blog/2013/12/29/performance-analysis-with-oprofile/
http://false.ekta.is/2012/11/cpu-profiling-applications-on-openwrt-with-perf-or-oprofile/
https://forums.xilinx.com/t5/%E5%B5%8C%E5%85%A5%E5%BC%8F%E5%B7%A5%E5%85%B7%E4%B8%8EIP/%E5%A6%82%E4%BD%95%E4%BD%BF%E7%94%A8oprofile%E5%AF%B9%E8%BD%AF%E4%BB%B6%E5%81%9Aprofiling/td-p/397453
http://elinux.org/Boot_Time
Author: Shi Shougang
Created: 2016-01-30 Sat 00:42
Emacs 24.3.1 (Org mode 8.2.10)
Validate