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From: "Toke Høiland-Jørgensen" <toke@redhat.com>
To: Lorenzo Bianconi <lorenzo@kernel.org>, bpf@vger.kernel.org
Cc: netdev@vger.kernel.org, lorenzo.bianconi@redhat.com,
	davem@davemloft.net, kuba@kernel.org, ast@kernel.org,
	daniel@iogearbox.net, brouer@redhat.com, song@kernel.org
Subject: Re: [PATCH v2 bpf-next] cpumap: bulk skb using netif_receive_skb_list
Date: Tue, 13 Apr 2021 21:41:46 +0200	[thread overview]
Message-ID: <87lf9mm0p1.fsf@toke.dk> (raw)
In-Reply-To: <bb627106428ea3223610f5623142c24270f0e14e.1618330734.git.lorenzo@kernel.org>

Lorenzo Bianconi <lorenzo@kernel.org> writes:

> Rely on netif_receive_skb_list routine to send skbs converted from
> xdp_frames in cpu_map_kthread_run in order to improve i-cache usage.
> The proposed patch has been tested running xdp_redirect_cpu bpf sample
> available in the kernel tree that is used to redirect UDP frames from
> ixgbe driver to a cpumap entry and then to the networking stack.
> UDP frames are generated using pkt_gen.
>
> $xdp_redirect_cpu  --cpu <cpu> --progname xdp_cpu_map0 --dev <eth>
>
> bpf-next: ~2.2Mpps
> bpf-next + cpumap skb-list: ~3.15Mpps

Nice! :)

Acked-by: Toke Høiland-Jørgensen <toke@redhat.com>


  parent reply	other threads:[~2021-04-13 19:41 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-13 16:22 [PATCH v2 bpf-next] cpumap: bulk skb using netif_receive_skb_list Lorenzo Bianconi
2021-04-13 17:57 ` Jesper Dangaard Brouer
2021-04-13 19:41 ` Toke Høiland-Jørgensen [this message]
2021-04-15 15:05 ` Daniel Borkmann
2021-04-15 15:21   ` Jesper Dangaard Brouer
2021-04-15 15:55   ` David Ahern
2021-04-15 16:03     ` Lorenzo Bianconi
2021-04-15 18:00       ` David Ahern
2021-04-15 20:10         ` Lorenzo Bianconi
2021-04-15 20:31           ` Daniel Borkmann

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