utensil commented at 2016-02-25 03:02:
- http://linux.die.net/man/1/pidstat
- http://unix.stackexchange.com/a/84345/145128
- http://www.thegeekstuff.com/2011/03/linux-performance-monitoring-intro/
- https://criticalblue.com/news/wp-content/uploads/2013/12/linux_scheduler_notes_final.pdf
- http://blog.tsunanet.net/2010/11/how-long-does-it-take-to-make-context.html
- http://www.cnblogs.com/mindwind/p/5946586.html