ANSWERED howto limit or change openvpn process priority in AC66U..

[gribib 4]

Hi there,

 

it seams i have overestimated my AC66U router because when the openvpn service does a tls rekeying once every hour is the ac66u using 100% of CPU power and dropping for connection for 3-5 sek. since i couldnt find any solution with the openvpn varibles. Was i thinking of limit or lower the priority of the openvpn service running on the router. Is this even posible and can some one direct me in the right direction?!

[guppy 10]

nice / renice

 

Edit: 

 

Realised that you might need som more help;

 

Man page for renice; http://linux.die.net/man/8/renice

 

1) Log in via SSH in the router 

2) find the process of openvpn ( > ps afux )

3) > renice 19 ####

 

where #### is the process id

 

don't enter the ">" that's just meant to illustrate the prompt

[gribib 4]

thanks, it seams to accept the command only need to wait for at TLK rekeying to see if it works...

 

is there are way to see the nice value for a PID? and does this renice value stick to that service? or do i have to run it everytime router restart. if this is the case is there a way to stick that nice value to that service?

[guppy 10]

"top" shows the priority ( hit the "q" key to exit )

 

You will have to renice every time the service is restarted, to get around that you would have to edit the init script and put "nice xx " infront of the launch command.

 

btw 19 is the very lowest priority - it's basically a wait for / yield to everything.

[gribib 4]

thanks, but unfortuanly it doesnt seam to work, there is a slight decrease in latency while TLS rekeying by maby 5% but is still around the 4000msec, and cpu usage still reach 100%... but thanks again...

 

ps. the value cant be seen in the 'top' version on the ac66u..