[bind10-dev] an interesting take on how to do stats

[Likun Zhang]

Hi,

My idea for stats is:

Develop stats as a separate tool, all its data(queries and replies of
bind10) is got from the mirrored port of router. 

Likun

> Paul Ebersman tossed an idea to me on the side and after thinking about
> it I wanted to send it out to the list. This is me paraphrasing and
> expanding his idea.
> 
> His basic suggestion was aimed at getting around the challenge of adding
> more stats and not slowing down the server path. He asked what if the
> stats engine got all its data from a pcap tap of the raw traffic and the
> query processing didn't have to do anything related to stats.
> 
> At first glance, this seemed like quite a bit of duplicated processing
> (packet unmarshalling, context switching, etc.) and would slow things
> down even more. But on a multicore system, this could run almost
> completely independent of the BIND 10 server, using it's own memory
> space and not impacting the query processing "fast path" at all.
>