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Top Forums Shell Programming and Scripting Swap usage by top and free command doesn't match Post 302596945 by admin_xor on Wednesday 8th of February 2012 06:14:28 PM
Old 02-08-2012
This entirely depends on the perspective the program is looking from. Not only free top, people found discrepancies among the outputs of sar -r, vmstat, ps aux.

But, as far as my knowledge goes, free command shows output using /proc/meminfo file. That's a direct output from kernel and ought to be more correct one.
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