pls help network thoughput

[Andrew P.]

On 1/7/06, ann kok <annkok2001 at yahoo.com> wrote:
> Dear Andrew
>
> Thank you for your help in advance
>
> I keep checking the loading. it is running fine. the
> load averages is not over to 1.0
>
>
> System info:
> Intel(R) Pentium(R) 4 CPU 3.00GHz
> 2G memory
>
> for the sysctl var:
>
> kern.polling.enable=1
> kern.polling.user_frac=10
> kern.ipc.somaxconn=2048
> kern.polling.poll_in_trap=1
>
> I don't run   iperf and my switch is not managable.
>
> could you provide any hints to check it?
>
> and tune the system also.
>
> Thank you again
>
>
>
> last pid: 47008;  load averages:  0.00,  0.02,  0.02
>                                              up
> 80+11:09:17  22:42:18
> 31 processes:  1 running, 30 sleeping
> CPU states:     % user,     % nice,     % system,
> % interrupt,     % idle
> Mem: 100M Active, 1639M Inact, 201M Wired, 60M Cache,
> 199M Buf, 11M Free

With such a high-spec box, you should probably be running
FreeBSD 6. It has much more polling related sysctl tunable.
We've got too FreeBSD 5 firewalls at our site (which are doing
just fine), and I'm gonna upgrade them to 6.0 one of these
days.

Look at "netstat -s" to see how many packets are "broken".
Maybe your switch/cabling can't cope with the load.

Where are the figures from the top output. I only see percent
signs.

Try running iperf. It's really easy. Just install the port on two
boxes, run iperf -s on one and iperf -c <other IP> on the
other.