High Load - Low IO - Low CPU usage

Posted by devup on Server Fault See other posts from Server Fault or by devup
Published on 2011-02-07T17:20:11Z Indexed on 2011/02/15 23:27 UTC
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Performance

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cpu

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load

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io

I have a system whose load is rather high. As you can see from the top output below, CPU usage and I/O is negligible:

top - 17:31:59 up 4 days, 2:34, 2 users, load average: 1.00, 0.99, 1.00

Tasks: 71 total, 1 running, 70 sleeping, 0 stopped, 0 zombie

Cpu(s): 2.0%us, 2.0%sy, 0.0%ni, 95.9%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st

Mem: 960720k total, 707288k used, 253432k free,
67328k buffers

Swap: 2811896k total, 2644k used, 2809252k free, 528928k cached

PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND

15310 root 20 0 2512 1128 888 R 2.1 0.1 0:00.05 top

I would appreciate any assistance with isolating the cause(s) of high load for when I/O and CPU are not factors.

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