netdev - Re: CPU scheduler to TXQ binding? (ixgbe vs. igb)

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Message-ID: <20140918205725.64ddd4a7@redhat.com>
Date:	Thu, 18 Sep 2014 20:57:25 +0200
From:	Jesper Dangaard Brouer <jbrouer@...hat.com>
To:	Eric Dumazet <eric.dumazet@...il.com>
Cc:	Alexander Duyck <alexander.h.duyck@...el.com>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	Tom Herbert <therbert@...gle.com>
Subject: Re: CPU scheduler to TXQ binding? (ixgbe vs. igb)


On Thu, 18 Sep 2014 09:34:24 -0700 Eric Dumazet <eric.dumazet@...il.com> wrote:
> On Thu, 2014-09-18 at 17:59 +0200, Jesper Dangaard Brouer wrote:
> > On Thu, 18 Sep 2014 08:42:31 -0700
> > Eric Dumazet <eric.dumazet@...il.com> wrote:
> > 
[...]
> > I'm looking for some 1G hardware without multiqueue, so I can get
> > around this measurement constraint.  And possibly turning it down to
> > 100Mbit/s, so I can more easily measure the HoL blocking effect.
> > 
> 
> ethtool -L   eth0    rx 1 tx 1 
> 
> (Or similar if combined is used)

Thanks! - that solves my qdisc measurement problem :-)
And yes, I had to use:

 ethtool -L eth1 combined 1

-- 
Best regards,
  Jesper Dangaard Brouer
  MSc.CS, Sr. Network Kernel Developer at Red Hat
  Author of http://www.iptv-analyzer.org
  LinkedIn: http://www.linkedin.com/in/brouer
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