top after some hours of idle: top - 22:37:02 up 1 day, 13:29, 1 user, load average: 0.00, 0.01, 0.05 Tasks: 268 total, 3 running, 265 sleeping, 0 stopped, 0 zombie %Cpu(s): 0.6 us, 0.3 sy, 0.0 ni, 98.7 id, 0.4 wa, 0.0 hi, 0.0 si, 0.0 st KiB Mem: 49452964 total, 45896468 used, 3556496 free, 19260 buffers KiB Swap: 50320380 total, 15316760 used, 35003620 free. 43644124 cached Mem PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 16739 root 1 -19 76904 18980 4304 S 0.1 0.0 0:06.64 bs_worker 16745 root 1 -19 76904 18980 4304 S 0.0 0.0 0:06.91 bs_worker 16746 root 1 -19 76904 18980 4304 S 0.0 0.0 0:06.80 bs_worker 16736 root 1 -19 76832 18976 4304 S 0.1 0.0 0:06.90 bs_worker 16731 root 1 -19 76904 18960 4284 S 0.0 0.0 0:06.90 bs_worker 16740 root 1 -19 76884 18952 4292 S 0.1 0.0 0:06.98 bs_worker 16737 root 1 -19 76832 18936 4264 S 0.0 0.0 0:06.83 bs_worker 16741 root 1 -19 76904 18932 4256 S 0.0 0.0 0:06.42 bs_worker 16743 root 1 -19 76904 18932 4256 S 0.1 0.0 0:06.67 bs_worker 16744 root 1 -19 76904 18892 4212 S 0.0 0.0 0:06.87 bs_worker 16742 root 1 -19 76836 18888 4216 S 0.0 0.0 0:06.79 bs_worker 16725 root 1 -19 76884 18872 4216 S 0.0 0.0 0:06.77 bs_worker 16735 root 1 -19 76832 18872 4200 S 0.0 0.0 0:06.98 bs_worker 16726 root 1 -19 76836 18844 4168 S 0.0 0.0 0:07.01 bs_worker 16738 root 1 -19 76904 18840 4164 S 0.0 0.0 0:06.81 bs_worker 16728 root 1 -19 76884 18828 4168 S 0.0 0.0 0:06.91 bs_worker 16732 root 1 -19 76884 18824 4160 S 0.0 0.0 0:06.86 bs_worker 16734 root 1 -19 76904 18808 4128 S 0.0 0.0 0:06.92 bs_worker 16730 root 1 -19 76912 18800 4128 S 0.0 0.0 0:06.77 bs_worker 16733 root 1 -19 76864 18792 4128 S 0.0 0.0 0:06.96 bs_worker 16727 root 1 -19 76836 18784 4168 S 0.1 0.0 0:06.56 bs_worker 16729 root 1 -19 76904 18780 4128 S 0.0 0.0 0:06.66 bs_worker 805 root 20 0 52780 13564 3540 S 0.0 0.0 0:05.05 munin-node 3351 root 20 0 99532 6456 5480 S 0.1 0.0 0:00.03 sshd 16724 root 20 0 34896 5704 1644 S 0.0 0.0 1:58.17 screen 3385 root 20 0 26640 5072 3188 S 0.0 0.0 0:00.03 bash 1496 root 20 0 123748 3976 3376 S 0.0 0.0 0:06.23 thermald 1243 root 20 0 10272 3928 1620 S 0.0 0.0 0:00.34 dhclient 1532 root 20 0 59580 3672 2984 S 0.0 0.0 0:00.01 sshd 1679 ntp 20 0 31488 3336 2728 S 0.0 0.0 0:06.35 ntpd 628 syslog 20 0 255864 3164 1916 S 0.0 0.0 0:00.59 rsyslogd 1 root 20 0 29048 3160 1936 S 0.0 0.0 0:04.24 init 3399 root 20 0 29260 3052 2404 R 0.0 0.0 0:00.01 top 3038 root 20 0 36764 3028 2712 S 0.0 0.0 0:00.03 systemd-logind 698 message+ 20 0 43992 2644 2156 S 0.0 0.0 0:00.12 dbus-daemon 405 root 20 0 23704 2588 2340 S 0.0 0.0 0:00.09 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 0:00.20 cron 1604 root 20 0 19500 1892 1612 S 0.0 0.0 0:12.49 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