Re: [LARTC] HTB Kernel log (cl && cl->un.leaf.q->q.qlen)

[David Watson <David.Watson@team17.com>]

         I was recreating the qdiscs so that changes would be picked up 
automatically and not disturb the rrdtool generation, I've switched to a 
counter and cut out the resets.

         I did do a lot of ping tests and cannot replicate losing packets 
however.

Thanks

At 21:55 18/06/2003 +0200, you wrote:
>On Wednesday 18 June 2003 21:17, Giannis Stoilis wrote:
> > Stef Coene wrote:
> > > On Wednesday 18 June 2003 20:53, Giannis Stoilis wrote:
> > >>Never mind that. The most important issue here is that when you delete
> > >>your queues, any packet that happens to pass through them at that time,
> > >>are LOST!
> > >
> > > Are you sure?  I never tested it.
> >
> > This is how I know it:
> > I constantly ping my linux server from another pc. At some poing I
> > delete and recreate my queues. From the pc that pings my linux server, I
> > can see the replies coming, and at the point of the restart I have
> > missed pinging replies and at the point after the qdisc creation, I can
> > see the icmp replies coming back again.
> > Either every packet is lost at qdisc removal, or something else, same as
> > nasty, is happening...
> > You should try it and see...
> > Also, if you have monitor_tc running at that time, you can see it dump
> > some nice negative values...
>:)
>That's because the counters are resetten so the values are negative at that
>time.  But that will not say are packets are gone.  However, your ping test
>proves it.
>
>Stef
>
>--
>
>stef.coene@docum.org
>  "Using Linux as bandwidth manager"
>      http://www.docum.org/
>      #lartc @ irc.oftc.net
>
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