improving concurrency/performance

[David Blewett]

Quoting John Madden <jmadden at ivytech.edu>:

> The disks are quite fast.  bonnie++, for example, shows writes at 
> over 300MB/s.
> What I'm finding though is that the processes aren't ever pegging them out --
> nothing ever goes into iowait.  The bottleneck is elsewhere...
>
> John

This might seem dumb, but are there any issues with name resolution? 
Could DNS queries be slowing things down?

David