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Re: Strange top output



Simon wrote:
> Hi There,
> 
> We are seeing a large spike in load average on our web server (from
> 0.xx to 10-15.xx) but there does not seem to be anything hogging the
> CPUs or anything... Am i missing something here? What can i do to
> check other issues.
> 
> Thanks
> 
> Simon
> 
> 
> 
> top - 15:33:25 up 5 days,  5:28,  1 user,  load average: 10.74, 10.23, 10.92
> Tasks: 128 total,   1 running, 127 sleeping,   0 stopped,   0 zombie
> Cpu(s): 26.2% us, 29.5% sy,  0.0% ni, 40.0% id,  4.0% wa,  0.0% hi,  0.3% si
> Mem:   1036100k total,   943536k used,    92564k free,    45664k buffers
> Swap:  1951888k total,    89692k used,  1862196k free,   488912k cached

That looks very similar to a problem I had with an early 2.6 kernel on a
Dell 1RU server -- there was some sort of odd hardware problem between
the motherboard and the kernel, and a later kernel update cleared the
problem.

This was a number of years ago, and iostat showed a lot of I/O going on
when it wasn't really expected on that machine, but fixing it really was
more of a "might as well try the latest kernel" type of thing, nothing
direct was ever found.

Nate



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