Re: tcp/ip performance problem

[Bernd Eckenfels]

In article <cc64e8ce0810011222o10f3c0e1tf288fa87b4bc1723@xxxxxxxxxxxxxx> you wrote:
> hmm, actually I was looking for max queue length reached ... during
> the run of the listening program. Is there any such value available ?

netstat -s shows "TCP resets sent" counter which is incremented in a overrun
scenario. Unfortunatelly this is not socket specific, however it is a good
idea to monitor that counter closely.

This is BTW common to java servers (if GC runs).

> patch to netstat ? so the /proc/...rx_queue should be ok to use to get
> this number ? or were there some additional values exposed by the
> kernel.

Kernel patched to hand the connection-slots current/max to netstat for
listening sockets.

I think I will change the header for "netstat -l" to "maxlisten backlog" or
something?

Gruss
Bernd

PS: http://net-tools.berlios.de
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