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Date: Mon, 09 Sep 2013 06:47:25 -0700
From: Eric Dumazet <eric.dumazet@...il.com>
To: Jason Wang <jasowang@...hat.com>
Cc: Zoltan Kiss <zoltan.kiss@...rix.com>,
Wei Liu <wei.liu2@...rix.com>,
Jonathan Davies <Jonathan.Davies@...citrix.com>,
Ian Campbell <ian.campbell@...rix.com>, netdev@...r.kernel.org,
xen-devel@...ts.xenproject.org,
"Michael S. Tsirkin" <mst@...hat.com>
Subject: Re: TSQ accounting skb->truesize degrades throughput for large
packets
On Mon, 2013-09-09 at 17:27 +0800, Jason Wang wrote:
> Virtio-net orphan the skb in .ndo_start_xmit() so TSQ can not throttle
> packets in device accurately, and it also can't do BQL. Does this means
> TSQ should be disabled for virtio-net?
>
If skb are orphaned, there is no way TSQ can work at all.
It is already disabled, so why do you want to disable it ?
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