From: Toshiaki Makita <toshiaki.makita1@gmail.com>
To: Lorenzo Bianconi <lorenzo@kernel.org>, bpf@vger.kernel.org
Cc: netdev@vger.kernel.org, davem@davemloft.net, kuba@kernel.org,
ast@kernel.org, daniel@iogearbox.net,
lorenzo.bianconi@redhat.com, brouer@redhat.com, toke@redhat.com
Subject: Re: [PATCH v3 bpf-next] net: veth: alloc skb in bulk for ndo_xdp_xmit
Date: Sun, 31 Jan 2021 23:16:24 +0900 [thread overview]
Message-ID: <b63d0fb0-319a-3246-f187-4e7ad14ebc75@gmail.com> (raw)
In-Reply-To: <a14a30d3c06fff24e13f836c733d80efc0bd6eb5.1611957532.git.lorenzo@kernel.org>
On 2021/01/30 7:04, Lorenzo Bianconi wrote:
> Split ndo_xdp_xmit and ndo_start_xmit use cases in veth_xdp_rcv routine
> in order to alloc skbs in bulk for XDP_PASS verdict.
> Introduce xdp_alloc_skb_bulk utility routine to alloc skb bulk list.
> The proposed approach has been tested in the following scenario:
>
> eth (ixgbe) --> XDP_REDIRECT --> veth0 --> (remote-ns) veth1 --> XDP_PASS
>
> XDP_REDIRECT: xdp_redirect_map bpf sample
> XDP_PASS: xdp_rxq_info bpf sample
>
> traffic generator: pkt_gen sending udp traffic on a remote device
>
> bpf-next master: ~3.64Mpps
> bpf-next + skb bulking allocation: ~3.79Mpps
>
> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Reviewed-by: Toshiaki Makita <toshiaki.makita1@gmail.com>
Thanks,
Toshiaki Makita
next prev parent reply other threads:[~2021-01-31 15:24 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-29 22:04 [PATCH v3 bpf-next] net: veth: alloc skb in bulk for ndo_xdp_xmit Lorenzo Bianconi
2021-01-31 14:16 ` Toshiaki Makita [this message]
2021-02-02 14:14 ` Jesper Dangaard Brouer
2021-02-04 0:10 ` patchwork-bot+netdevbpf
2021-02-04 0:14 ` Daniel Borkmann
2021-02-04 9:05 ` Jesper Dangaard Brouer
2021-02-04 15:43 ` Daniel Borkmann
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