top - 09:46:01 up 90 days, 17:53,  1 user,  load average: 0.08, 0.26, 0.55
Tasks:   1 total,   0 running,   1 sleeping,   0 stopped,   0 zombie
Cpu(s):  1.2%us,  0.6%sy,  0.0%ni, 97.9%id,  0.3%wa,  0.0%hi,  0.0%si,  0.0%st
Mem:   8061352k total,  7580072k used,   481280k free,     4636k buffers
Swap:  4194300k total,   869456k used,  3324844k free,  1501016k cached

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND                                                                                                                                           
24476 mongod    20   0 5594m 3.9g 6120 S  1.2 50.1  15135:46 mongod --config /opt/ptin/mongodb/conf/mongo_oms_1.conf --logRotate reopen --logappend