using get_system_info() - obtaining system load averages

[Julian Elischer]

kamal kc wrote:

>
>actually the thing is , i have put some code in the
>bridge.c
>routine that attempts to compress/decompress ip
>packets. 
>
>i don't know if it was a good idea since i am just a
>beginner 
>in programming in the kernel and have a little
>knowledge 
>regarding it. 
>
>after i put my code i got a very high amount
>of interrupts (irq 21: xl1 interrupts) that overloads
>the 
>cpu withing seconds if i pump about 4Mbps traffic
>through it.
>
>so i thought as a temp solution that i could turn off
>the 
>compression if ever the cpu gets overloaded and that's
>it.
>
>But after a second thought-->
> the very idea of putting the large compression
>routine 
>in the bridge code now seems awkward to me. since the
>compression 
>takes time and putting the code in the bridge may be 
>causing high interrupts i now think if i can do the
>compression
>stuffs in separate thread/process than in the bridge
>process itself.
>
>but right now i don't know how do i create a separate
>process/thread, 
>what are the routines that i need to implement for
>this..
>and also how to dispatch control from the bridge
>process to a new 
>process without blocking. i am looking into these
>stuffs and 
>hope i find something from the sources but it is
>getting really
>difficult ...
> 
>maybe you people could have something to say, any
>advice 
>on whether i am doing the right stuffs would be
>greatly
>helpful to me ..
>
>  
>

you could bridge through a userland process using netgraph.

I've done it.. it does work. (doing other things than compression)

check out netgraph bridging..