netgraph locking / performance [was: ... AOE]

[Bjoern A. Zeeb]

On Tue, 31 Aug 2004, Scott Long wrote:

Hi,

> My employer has done extensive profiling of packet delivery through
> netgraph.  While the locking of the netgraph framework is definitely
> correct, it's not terribly efficient and leads to a good deal of
> latency.  We are looking at various proposals on how to address this.
> This isn't a criticism of you or Netgraph, just a set 'real-life'
> observations under very high load (bridging and packet inspection on
> 4 GigE links simultaneously qualifies as high load =-)

could please explain a bit more / give some numbers ? Or are there
any published results ? What do you mean by 'packet inspection' ?

And what hardware did you use to fill up 4GigE pipes ?

-- 
Greetings
Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT