Does any one know the 'top' command 's result's meaning in android?

Question

I have found the result of \'top\' is different from result of in standard linux.I have searched on the web a little bit but I can not find my answer. For example, following is

Answer 1

top sourcecode [ top sourcecode][1]

[1]: http://androidxref.com/4.0.4/xref/system/core/toolbox/top.c#442 to get the complete logic of how each value is calculated