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Re: New NetBSD user - ALTQ confusion

On Fri, Dec 17, 2010 at 03:19:29PM +0000, Gerard Lally wrote:
> > if altq is causing latency to increase, it's expected that sendbuf
> > will be raised up to sendbuf_max. Then a single TCP connection will
> > eat 8192 mbuf for its send queue
> This is useful information. My head is spinning from all the advice on
> tuning - should I tune? should I not tune? Would you recommend
> increasing the sendbux_max setting even further then?

if you increase it more, it will need more mbuf ...
When the mbuf count is high you can to
netstat -a
and watch the sendq of each socket to see if there's not of data here.

Manuel Bouyer <>
     NetBSD: 26 ans d'experience feront toujours la difference

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