$top top - 12:24:34 up 9 days, 21:58, 0 users, load average: 5.98, 5.32, 4.30 Tasks: 13 total, 1 running, 12 sleeping, 0 stopped, 0 zombie %Cpu(s): 5.5 us, 1.5 sy, 0.0 ni, 92.6 id, 0.0 wa, 0.0 hi, 0.5 si, 0.0 st KiB Mem: 12969522+total, 11112360+used, 18571628 free, 135900 buffers KiB Swap: 0 total, 0 used, 0 free. 49328208 cached Mem PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 40 root 20 0 1466540 912540 12568 S 7.7 0.7 67:03.03 bundle 43 root 20 0 1413152 860252 11116 S 6.7 0.7 65:41.24 bundle The load averages indicate the average number of processes waiting for CPU time over the specified time periods. Shows running processes and their status. Buffer is the amount of data used while it's being written or read. The numbers are in KiB's showing the RAM available on system us - user process sy - system process process ID (PID), user, priority (PR), virtual memory usage (VIRT), resident memory usage (RES), shared memory usage (SHR), CPU usage (%