Vor Start:

             total       used       free     shared    buffers     cached
Mem:          3711       2873        837          0        209       1548
-/+ buffers/cache:       1114       2596
Swap:            0          0          0

Nach Start:

             total       used       free     shared    buffers     cached
Mem:          3711       2680       1031          0        210       1552
-/+ buffers/cache:        917       2793
Swap:            0          0          0