View source for Oprofile

From oprofile.sourceforge.net

 apt-get install oprofile oprofile-gui prospect

Then you can read file:///usr/share/doc/oprofile/oprofile.html
<br>If you want to profile also the kernel you need the uncompressed version of the kernel.
<br>Unfortunately under Debian this is not possible just like that, what you can do is recompiling the kernel with "make vmlinux", cf [http://bonglonglong.com/2006/12/06/oprofile-kernel-images-and-innodb-oh-my/ this post]