i have conflict with memory utilization

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http://www.unix.com – dear all, kindly i want to check my server memory utilization i used alot of commands but i want to make sure that it is acurate let me explain i have a server which has 32GB RAM Total Memory = 33423360 kb Free Memory = 4172568 kb Utilized Memory = 29250792 kb Memory Utilization Percentage = 87.5 % if Utilized Memory = 29250792 kb how can i make sure which processes eat this amount of memory I listed the top proceses i found the following if i sum the amount of memory by each process from the flowing it will not equal the utilized memory 29250792 kb so i want to know which processes (HowTos)