simple, maybe complicated process monitoring
 

Does anyone know if there's a way to determine a process's io and/or network usage since its beginning. I can determine cpu usage easily with /proc/?pid/stats or getrusage but the io and network still eludes me. It may not be possible but if you think you have a cool way that may work I'll try it.

Thanks

I believe the gkrellm (www.gkrellm.net) tool does what you'd want and you should be able to read the source (I think).