>
> CPU %user %nice %system %iowait %steal %idle
> all 7.92 0.00 7.75 46.93 0.00 37.40
> all 8.43 0.00 8.31 48.12 0.00 35.14
> all 8.03 0.00 8.01 45.84 0.00 38.12
> all 8.39 0.00 8.43 46.48 0.00 36.69
> all 9.89 0.11 7.32 54.83 0.00 27.85
> all 9.09 0.00 8.87 49.75 0.00 32.30
> all 8.96 0.00 9.09 48.89 0.00 33.06
> all 10.02 0.00 9.60 51.23 0.00 29.15
>

as already indicated your php-cgi processes are waiting IO completion
from other sources: database backend, other backends if you use. This
might indicate why you have a high percentage of iowait. You gotta
drill down and find whats going on:

1. webserver - database connection:
check network link, speed, full duplex
check TCP/sec: connection ESTABLISHED to understand whats your load
check TCP/IP settings on Linux, both machines: web and db servers

Give a try to netstat: http://blogs.sun.com/timc/entry/nicstat_the_solaris_and_linux
it really gives you a picture about your network utilisation.

2. vmstat: would as well give you an overall picture of cpu/mem
what does it say on your box: vmstat 1 10 ? Run this as well
on your DB server.
check free column
check si, so


stefan


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