[RP-PPPoE] Very high CPU usage by the pppoe-server

[David F. Skoll]

On Thu, 31 Mar 2011 14:46:20 +0200
Dardan Behluli <Dardan.Behluli at ipko.com> wrote:

> The machine has 2.5GB of RAM and, for the moment, there is no
> swapping. The tool top shows that the pppoe-server process uses the
> CPU the most.

Really?  Then you might need to strace the pppoe-server process to see
what it is doing.

> As I mentioned in the first post, the other PPPoE
> servers, about 15 of them with the same hardware, show much better
> performance with the same and even higher number of users connected.
> The difference in configuration is that this one has no NAT. Can this
> be the cause, in some strange way?

Maybe, but I really doubt it.  pppoe works at layer-2 and knows nothing
about IP addresses, NAT, etc.

Regards,

David.