netdev - Re: [BUG?] ixgbe: only num_online_cpus() of the tx queues are enabled

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Message-ID: <1394294883.20149.70.camel@edumazet-glaptop2.roam.corp.google.com>
Date:	Sat, 08 Mar 2014 08:08:03 -0800
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Ming Chen <v.mingchen@...il.com>
Cc:	netdev@...r.kernel.org, Erez Zadok <ezk@....cs.sunysb.edu>,
	Dean Hildebrand <dhildeb@...ibm.com>,
	Geoff Kuenning <geoff@...hmc.edu>
Subject: Re: [BUG?] ixgbe: only num_online_cpus() of the tx queues are
 enabled

On Sat, 2014-03-08 at 07:27 -0800, Eric Dumazet wrote:

> Quite frankly, with a 1Gbe link, I would just use FQ and your problem
> would disappear.
> 
> (I also use FQ with 40Gbe links if that matters)
> 
> For a 1Gbe link, the following command is more than enough.
> 
> tc qdisc replace dev eth0 root fq
> 
> Also, following patch would probably help fairness. I'll submit an
> official and more complete patch later.

Also try more recent kernels. TCP stack changes a lot these days ;)

http://git.kernel.org/cgit/linux/kernel/git/davem/net-next.git

contains many TCP related stuff which should land in linux-3.15



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