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In linux, it's normal that RAM is full. See the output of cat /proc/meminfo: MemTotal: 2051700 kB MemFree: 74376 kB Buffers: 0 kB Cached: 1562336 kB ... As you can see in my example output, I have a total of 2GB RAM and only 74MB is free. That's normal. But, see the value of Cached: from the official Linux kernel ...


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The “missing” memory is serving as cache (mentioned in the top output at the end of the line that starts with the swap). You can use free to see this in a different form: $ free total used free shared buffers cached Mem: 1048576 640072 408504 0 0 533872 -/+ buffers/cache: 106200 ...



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