Calculating of total free memory

[N. Ersen SISECI]

Hi,

I want to know REAL free memory size in my system. What I want to know 
that is the real free memory size is hw.physmem - Free memory (the one 
that is shown at the output of top -b). Various tools such as the one in
freecolor ports in ports tree says it is not like that. It seems that
Free Memory 
is ( hw.physmem - (Free + Inactv)  )

I am not sure which one is the right one.. Can someone tell me which one
is 
the right one? 


N. Ersen SISECI
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