Re: [PATCH RFC 3/3] NFQUEUE: add --queue-cpu-fanout parameter

[Eric Leblond <eric@regit.org>]

Hi,

On Sat, 2013-03-23 at 20:52 +0100, Holger Eitzenberger wrote:
> Hi Eric,
> 
> > If possible, it could be interesting to be able to setup the balance
> > parameter by using an option in the same way fail-open option:  
> >        uint32_t flags = NFQA_CFG_F_FAIL_OPEN;
> >        uint32_t mask = NFQA_CFG_F_FAIL_OPEN;
> >        int r = nfq_set_queue_flags(qh, mask, flags);
> > This way, it is possible to tune the system without changing the
> > ruleset.
> 
> Not sure how the FAIL_OPEN relates to the CPU fanout.  Do you want to
> setup the CPU fanout (on, off) per queue?

You are right on a major point. FAIL_OPEN is definitely per-queue and
CPU fanout is related to a fanout group. So we will have to have the
whole mechanism bind to a queue, warn the kernel that it is in a fanout
group...

That could be interesting as we will be able to tune the setting from
the application but this seems to be a lot of work too. And I don't see
any functional benefit omit this tuning from the application.

So, if you don't find any other one, forgot my request for now :)

BR,
-- 
Eric Leblond <eric@regit.org>
Blog: https://home.regit.org/