memory usage in linux


im currently testing the memory usage of my 3d game application on suse Linux.when i use system monitor in order to obtain the memory usage, that particular application shows a memory usage of 37M.but when i use the ‘top’ command on konsole, it shows me 52m for the same question is why the memory usage for that particular process differs in system monitor and the ‘top’ command and which one should i refer to?

gives you pretty much real time use, it can be relied on.