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

[David F. Skoll]

On Thu, 31 Mar 2011 11:31:22 +0200
Dardan Behluli <Dardan.Behluli at ipko.com> wrote:

> One of our several PPPoE servers has very high CPU usage. This occurs
> basically when the number of users terminated reaches 1300 - 1500.
> With more than 1500 users connected the server is practically
> inaccessible.

Remember, you run one pppd process per user.  How much RAM does your
machine have?  If it ever starts swapping, performance goes down
dramatically.

I would guess it's all the pppd processes and context-switching eating
up your CPU rather than the pppoe-server process itself.

Regards,

David.