high load?

output of top

16:13:15 up 1:38, 2 users, load average: 5.73, 5.77, 6.18
112 processes: 95 sleeping, 17 running, 0 zombie, 0 stopped
CPU states: cpu user nice system irq softirq iowait idle
total 4.0% 0.0% 8.6% 0.6% 0.0% 86.8% 0.0%
Mem: 511316k av, 504760k used, 6556k free, 0k shrd, 0k buff
271396k actv, 163336k in_d, 6816k in_c
Swap: 2097136k av, 2480k used, 2094656k free 346612k cached

PID USER PRI NI SIZE RSS SHARE STAT %CPU %MEM TIME CPU COMMAND
2993 mysql 15 0 4304 4300 1184 R 3.9 0.8 2:07 0 mysqld
2810 mysql 15 0 4304 4300 1184 R 3.3 0.8 2:10 0 mysqld
2439 mysql 15 0 4304 4300 1184 R 3.1 0.8 2:14 0 mysqld
5 root 15 0 0 0 0 SW 1.1 0.0 1:02 0 kswapd
2 root 15 0 0 0 0 SW 0.1 0.0 0:01 0 keventd
17079 root 15 0 1144 1144 888 R 0.1 0.2 0:00 0 top
1 root 15 0 104 104 44 S 0.0 0.0 0:03 0 init
3 root 15 0 0 0 0 SW 0.0 0.0 0:00 0 kapmd
4 root 34 19 0 0 0 SWN 0.0 0.0 0:00 0 ksoftirqd/0
7 root 25 0 0 0 0 SW 0.0 0.0 0:00 0 bdflush
6 root 15 0 0 0 0 SW 0.0 0.0 0:04 0 kscand
8 root 15 0 0 0 0 SW 0.0 0.0 0:00 0 kupdated
9 root 25 0 0 0 0 SW 0.0 0.0 0:00 0 mdrecoveryd
13 root 15 0 0 0 0 DW 0.0 0.0 0:03 0 kjournald
68 root 25 0 0 0 0 SW 0.0 0.0 0:00 0 khubd