http://oprofile.sourceforge.net/news/
http://d.hatena.ne.jp/hogelog/20081208/p1
http://cell.fixstars.com/ps3linux/index.php/OProfile%E3%82%92%E4%BD%BF%E3%81%A3%E3%81%A6CPU%E3%83%97%E3%83%AD%E3%83%95%E3%82%A1%E3%82%A4%E3%83%AA%E3%83%B3%E3%82%B0%E3%82%92%E3%81%A8%E3%82%8B