Kjournald And Named - Long Processes

why I have long processes on these two? (time wise)

7712 named 15 0 40088 39M 1688 S 1.1 1.9 50:33 0 named

13 root 15 0 0 0 0 SW 0.1 0.0 29:35 0 kjournald

iowait goes up and down too, along with server loads load average: 2.19, 2.76, 4.31


Do you think I need to change ext3 to ext2?

If so here's my fstab, which bits do I need to change?

LABEL=/ / ext3 defaults,usrquota 1 1
LABEL=/boot /boot ext3 defaults 1 2
none /dev/pts devpts gid=5,mode=620 0 0
none /proc proc defaults 0 0
none /dev/shm tmpfs defaults 0 0
/dev/hda2 swap swap defaults 0 0
/usr/tmpDSK /tmp ext3 defaults,noauto 0 0
/tmp /var/tmp ext3 defaults,bind,noauto 0 0

Or should I troubleshoot for something else? If so how/what should I do?