Since my last reboot May 1st, uptime shows an average CPU usage of ~4, but top and iotop are ok. Does anyone has an idea what else to check?
pi@raspberrypi ~ $ uptime
08:57:14 up 14 min, 1 user, load average: 4.08, 3.84, 2.53
pi@raspberrypi ~ $ top
top - 08:58:27 up 15 min, 1 user, load average: 4.02, 3.88, 2.64
Tasks: 70 total, 1 running, 69 sleeping, 0 stopped, 0 zombie
%Cpu(s): 0.7 us, 0.3 sy, 0.0 ni, 99.0 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st
KiB Mem: 496764 total, 89836 used, 406928 free, 12492 buffers
KiB Swap: 0 total, 0 used, 0 free, 49792 cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
3488 pi 20 0 3152 1296 916 R 1.0 0.3 0:00.25 top
1 root 20 0 2148 720 616 S 0.3 0.1 0:00.85 init
39 root 20 0 0 0 0 S 0.3 0.0 0:00.45 kworker/0:2
40 root 20 0 0 0 0 S 0.3 0.0 0:01.64 mmcqd/0
2 root 20 0 0 0 0 S 0.0 0.0 0:00.00 kthreadd
3 root 20 0 0 0 0 S 0.0 0.0 0:00.30 ksoftirqd/0
4 root 20 0 0 0 0 S 0.0 0.0 0:00.00 kworker/0:0
5 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 kworker/0:0H
pi@raspberrypi ~ $ sudo iotop
Total DISK READ: 0.00 B/s | Total DISK WRITE: 12.18 K/s
TID PRIO USER DISK READ DISK WRITE SWAPIN IO> COMMAND
41 be/3 root 0.00 B/s 8.12 K/s 0.00 % 0.83 % [jbd2/mmcblk0p2-]
2560 be/4 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % getty 38400 tty5
1 be/4 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % init [2]
2 be/4 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % [kthreadd]
3 be/4 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % [ksoftirqd/0]
4 be/4 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % [kworker/0:0]
5 be/0 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % [kworker/0:0H]
pi@raspberrypi ~ $ pstree
init-+-cron-+-cron---sh---...
| `-cron---sh---...
|-dbus-daemon
|-6*[getty]
|-2*[ifplugd]
|-lighttpd---php-cgi---4*[php-cgi]
|-ntpd
|-python
|-rsyslogd---3*[{rsyslogd}]
|-sshd---sshd---sshd---bash---pstree
|-thd
`-udevd---2*[udevd]
pi@raspberrypi ~ $ uname -a
Linux raspberrypi 3.12.18+ #679 PREEMPT Thu May 1 14:40:27 BST 2014 armv6l GNU/Linux
pi@raspberrypi ~ $ free -h
total used free shared buffers cached
Mem: 485M 92M 392M 0B 12M 52M
-/+ buffers/cache: 27M 457M
Swap: 0B 0B 0B
Just in case, this is the statistics for the last month:
