From: Flavio Leitner
Date: Thu, 24 May 2018 16:17:29 -0300
> veth originally called skb_orphan() on veth_xmit() most probably
> because there was no TX completion. Then the code got generalized to
> dev_forward_skb() and later on moved to skb_scrub_packet().
>
> The issue is that we call skb_scr
On Tue, May 15, 2018 at 02:08:09PM -0700, Eric Dumazet wrote:
>
>
> On 05/15/2018 12:31 PM, Flavio Leitner wrote:
> > Hi,
> >
> > There is a significant throughput issue (~50% drop) for a single TCP
> > stream when the skb is scrubbed and XPS is enabled.
> >
> > If I turn CONFIG_XPS off, then t
On 05/15/2018 12:31 PM, Flavio Leitner wrote:
> Hi,
>
> There is a significant throughput issue (~50% drop) for a single TCP
> stream when the skb is scrubbed and XPS is enabled.
>
> If I turn CONFIG_XPS off, then the issue never happens and the test
> reaches line rate. The same happens if I
Hi,
There is a significant throughput issue (~50% drop) for a single TCP
stream when the skb is scrubbed and XPS is enabled.
If I turn CONFIG_XPS off, then the issue never happens and the test
reaches line rate. The same happens if I echo 0 to tx-*/xps_cpus.
It looks like that when the skb is s
