free -m shows me the following in my system:             total       used       free     shared    buffers     cachedMem:          3954       3842        111          0        248       2585-/+ buffers/cache:       1008       2945Swap:         3811          4       3807So memory looks pretty used up, but top sorted by memory shows the following top-processes:  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND                                                                                                                                                               8891 minecraf  20   0 2374m 277m 9.9m S    1  7.0   0:12.21 java                                                                                                                                                                   8704 root      39  19 2802m 272m  11m S    0  6.9   0:28.73 java      The virtual memory used by java seems to be huge, but i learned on the internet that that's not a problem. So i guess my question is: Why does free show the virtual memory, if it's not that meaningful?
free / top difference. Does free show virtual memory?
memory;swap;top