here is the top output: top - 17:56:06 up 1 day, 8:48, 1 user, load average: 0.00, 2.67, 14.10 Tasks: 269 total, 1 running, 268 sleeping, 0 stopped, 0 zombie %Cpu(s): 0.0 us, 0.0 sy, 0.0 ni,100.0 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st KiB Mem: 49452964 total, 45681296 used, 3771668 free, 16276 buffers KiB Swap: 50320380 total, 15316768 used, 35003612 free. 43456648 cached Mem PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 16739 root 1 -19 76904 18980 4304 S 0.0 0.0 0:04.91 bs_worker 16746 root 1 -19 76904 18980 4304 S 0.0 0.0 0:05.08 bs_worker 16736 root 1 -19 76832 18976 4304 S 0.0 0.0 0:05.20 bs_worker 16745 root 1 -19 76904 18976 4304 S 0.0 0.0 0:05.16 bs_worker 16731 root 1 -19 76904 18960 4284 S 0.0 0.0 0:05.14 bs_worker 16740 root 1 -19 76884 18952 4292 S 0.0 0.0 0:05.21 bs_worker 16737 root 1 -19 76832 18936 4264 S 0.0 0.0 0:05.13 bs_worker 16741 root 1 -19 76904 18932 4256 S 0.0 0.0 0:04.86 bs_worker 16743 root 1 -19 76904 18932 4256 S 0.0 0.0 0:04.93 bs_worker 16742 root 1 -19 76836 18888 4216 S 0.0 0.0 0:05.11 bs_worker 16744 root 1 -19 76904 18880 4212 S 0.0 0.0 0:05.10 bs_worker 16725 root 1 -19 76884 18872 4216 S 0.0 0.0 0:05.03 bs_worker 16735 root 1 -19 76832 18872 4200 S 0.0 0.0 0:05.18 bs_worker 16726 root 1 -19 76836 18844 4168 S 0.0 0.0 0:05.23 bs_worker 16738 root 1 -19 76904 18840 4164 S 0.0 0.0 0:05.09 bs_worker 16728 root 1 -19 76884 18828 4168 S 0.0 0.0 0:05.22 bs_worker 16732 root 1 -19 76884 18820 4160 S 0.0 0.0 0:05.18 bs_worker 16734 root 1 -19 76904 18808 4128 S 0.0 0.0 0:05.22 bs_worker 16730 root 1 -19 76912 18800 4128 S 0.0 0.0 0:05.07 bs_worker 16733 root 1 -19 76864 18792 4128 S 0.0 0.0 0:05.19 bs_worker 16727 root 1 -19 76836 18784 4168 S 0.0 0.0 0:04.88 bs_worker 16729 root 1 -19 76904 18780 4128 S 0.0 0.0 0:04.95 bs_worker 805 root 20 0 52780 13564 3540 S 0.0 0.0 0:04.51 munin-node 21187 root 20 0 99676 6488 5512 S 0.3 0.0 0:02.56 sshd 16724 root 20 0 34896 5704 1644 S 0.0 0.0 1:56.94 screen 23909 root 20 0 26648 5096 3200 S 0.0 0.0 0:00.09 bash 1243 root 20 0 10272 3928 1620 S 0.0 0.0 0:00.29 dhclient 1496 root 20 0 123748 3304 2704 S 0.0 0.0 0:05.53 thermald 628 syslog 20 0 255864 3164 1916 S 0.0 0.0 0:00.50 rsyslogd 1 root 20 0 29048 3160 1936 S 0.0 0.0 0:04.20 init 13108 root 20 0 29272 3072 2404 R 0.0 0.0 0:00.03 top 3038 root 20 0 36764 3024 2712 S 0.0 0.0 0:00.03 systemd-logind 1532 root 20 0 59580 2952 2264 S 0.0 0.0 0:00.01 sshd 1679 ntp 20 0 31488 2952 2344 S 0.0 0.0 0:05.63 ntpd 698 message+ 20 0 43992 2644 2156 S 0.0 0.0 0:00.11 dbus-daemon 405 root 20 0 23704 2588 2340 S 0.0 0.0 0:00.06 cgmanager 438 root 20 0 34772 2584 2088 S 0.0 0.0 0:00.64 systemd-udevd 1554 root 20 0 26032 2380 2112 S 0.0 0.0 0:00.18 cron 1604 root 20 0 19500 1892 1612 S 0.0 0.0 0:10.16 irqbalance 1495 root 20 0 20000 1844 1684 S 0.0 0.0 0:00.00 getty 1492 root 20 0 20000 1824 1660 S 0.0 0.0 0:00.00 getty 1503 root 20 0 20000 1824 1672 S 0.0 0.0 0:00.00 getty 1809 root 20 0 20000 1808 1656 S 0.0 0.0 0:00.00 getty 1500 root 20 0 20000 1784 1624 S 0.0 0.0 0:00.00 getty 1501 root 20 0 20000 1764 1600 S 0.0 0.0 0:00.00 getty 431 root 20 0 24092 1412 1144 S 0.0 0.0 0:00.22 upstart-udev-br 624 root 20 0 15308 196 0 S 0.0 0.0 0:00.08 upstart-file-br 675 root 20 0 15292 196 0 S 0.0 0.0 0:00.05 upstart-socket- 1555 daemon 20 0 19156 168 0 S 0.0 0.0 0:00.00 atd 1629 root 20 0 12736 132 0 S 0.0 0.0 0:00.00 uuidd 2 root 20 0 0 0 0 S 0.0 0.0 0:00.03 kthreadd 3 root 20 0 0 0 0 S 0.0 0.0 0:00.59 ksoftirqd/0 5 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 kworker/0:0H 8 root 20 0 0 0 0 S 0.0 0.0 2:08.84 rcu_sched 9 root 20 0 0 0 0 S 0.0 0.0 0:59.23 rcuos/0 10 root 20 0 0 0 0 S 0.0 0.0 0:58.05 rcuos/1