Linux Memory usage

I just stumbled upon an excellent blog article on how to interpret linux memory usage. While one might think that linux is a memory hog by looking at the Free Memory stats at /proc/meminfo or the “top” utility, it actually caches as much as it can of the memory, that being the main reason why it almost never pushes memory back to the “Free” ammount.

http://sourcefrog.net/weblog/software/linux-kernel/free-mem.html

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