Squidf seems to be taking rather more than it's fair share of the CPU.
Dashboard CPU chart is at 100%
This machine is currently the proxy for 1 client system (the one I'm typing this out on) so it's not busy handling client requests.
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top - 00:28:33 up 1:51, 1 user, load average: 1.27, 1.37, 1.41
Tasks: 84 total, 3 running, 80 sleeping, 0 stopped, 1 zombie
Cpu(s): 29.0%us, 70.3%sy, 0.0%ni, 0.0%id, 0.0%wa, 0.0%hi, 0.7%si, 0.0%st
Mem: 223884k total, 194248k used, 29636k free, 1568k buffers
Swap: 1052248k total, 252072k used, 800176k free, 41180k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
7793 root 25 0 4004 68 52 R 95.9 0.0 44:20.77 squidf
10115 wwwrun 16 0 23752 16m 2236 S 2.3 7.7 0:04.70 index.plx
2714 root 15 0 19372 1168 676 S 0.3 0.5 0:02.51 ulogd
10217 root 17 0 33736 8748 2128 S 0.3 3.9 0:00.95 c.....