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Date: Mon, 13 Jan 2020 10:28:00 -0500
From: Ryan Goodfellow <rgoodfel@isi.edu>
Subject: Re: zero-copy between interfaces
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To: Jesper Dangaard Brouer <jbrouer@redhat.com>
Cc: "xdp-newbies@vger.kernel.org" <xdp-newbies@vger.kernel.org>

On Mon, Jan 13, 2020 at 12:41:34PM +0100, Jesper Dangaard Brouer wrote:
> On Mon, 13 Jan 2020 00:18:36 +0000
> Ryan Goodfellow <rgoodfel@isi.edu> wrote:
>=20
> > The numbers that I have been able to achive with this code are the foll=
owing. MTU
> > is 1500 in all cases.
> >=20
> >     mlx5: pps ~ 2.4 Mpps, 29 Gbps (driver mode, zero-copy)
> >     i40e: pps ~ 700 Kpps, 8 Gbps (skb mode, copy)
> >     virtio: pps ~ 200 Kpps, 2.4 Gbps (skb mode, copy, all qemu/kvm VMs)
> >=20
> > Are these numbers in the ballpark of what's expected?
>=20
> I would say they are too slow / low.
>=20
> Have you remembered to do bulking?
>=20

I am using a batch size of 256.

--=20
~ ry