From: Jesper Dangaard Brouer <jbrouer@redhat.com>
To: "Björn Töpel" <bjorn.topel@gmail.com>
Cc: netdev@vger.kernel.org, ast@kernel.org, daniel@iogearbox.net,
bpf@vger.kernel.org, davem@davemloft.net,
jakub.kicinski@netronome.com, hawk@kernel.org,
john.fastabend@gmail.com, magnus.karlsson@intel.com,
jonathan.lemon@gmail.com
Subject: Re: [PATCH bpf-next v2 0/8] Simplify xdp_do_redirect_map()/xdp_do_flush_map() and XDP maps
Date: Thu, 19 Dec 2019 08:18:15 +0100 [thread overview]
Message-ID: <20191219081815.0b07de1a@carbon> (raw)
In-Reply-To: <20191219061006.21980-1-bjorn.topel@gmail.com>
On Thu, 19 Dec 2019 07:09:58 +0100
Björn Töpel <bjorn.topel@gmail.com> wrote:
> $ sudo ./xdp_redirect_cpu --dev enp134s0f0 --cpu 22 xdp_cpu_map0
^^^^^^^^^^^^
>
> Running XDP/eBPF prog_name:xdp_cpu_map5_lb_hash_ip_pairs
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> XDP-cpumap CPU:to pps drop-pps extra-info
> XDP-RX 20 7723038 0 0
> XDP-RX total 7723038 0
[...]
Talking about how to invoke the 'xdp_redirect_cpu' program, I notice
that you are using BPF-prog named: 'xdp_cpu_map5_lb_hash_ip_pairs'
(default) but on cmdline it looks like you want 'xdp_cpu_map0'.
You need to use '--prog xdp_cpu_map0'. It will make a HUGE performance
difference.
Like:
sudo ./xdp_redirect_cpu --dev mlx5p1 --cpu 22 --prog xdp_cpu_map0
(p.s. The load-balance hash_ip_pairs is the default, because it is
usable for solving the most common issue, where the NIC is not
RSS distributing traffic correctly, e.g. ixgbe Q-in-Q. And it is close
to the Suricata approach.)
--
Best regards,
Jesper Dangaard Brouer
MSc.CS, Principal Kernel Engineer at Red Hat
LinkedIn: http://www.linkedin.com/in/brouer
next prev parent reply other threads:[~2019-12-19 7:18 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-19 6:09 [PATCH bpf-next v2 0/8] Simplify xdp_do_redirect_map()/xdp_do_flush_map() and XDP maps Björn Töpel
2019-12-19 6:09 ` [PATCH bpf-next v2 1/8] xdp: simplify devmap cleanup Björn Töpel
2020-01-07 17:32 ` John Fastabend
2020-01-08 10:08 ` Björn Töpel
2019-12-19 6:10 ` [PATCH bpf-next v2 2/8] xdp: simplify cpumap cleanup Björn Töpel
2019-12-19 6:10 ` [PATCH bpf-next v2 3/8] xdp: fix graze->grace type-o in cpumap comments Björn Töpel
2020-01-07 17:33 ` John Fastabend
2019-12-19 6:10 ` [PATCH bpf-next v2 4/8] xsk: make xskmap flush_list common for all map instances Björn Töpel
2020-01-07 17:54 ` John Fastabend
2020-01-08 10:13 ` Björn Töpel
2020-01-08 15:52 ` John Fastabend
2020-01-08 16:01 ` Toke Høiland-Jørgensen
2019-12-19 6:10 ` [PATCH bpf-next v2 5/8] xdp: make devmap " Björn Töpel
2020-01-07 17:58 ` John Fastabend
2020-01-08 10:16 ` Björn Töpel
2020-01-08 10:23 ` Toke Høiland-Jørgensen
2020-01-08 10:25 ` Björn Töpel
2019-12-19 6:10 ` [PATCH bpf-next v2 6/8] xdp: make cpumap " Björn Töpel
2020-01-07 17:59 ` John Fastabend
2019-12-19 6:10 ` [PATCH bpf-next v2 7/8] xdp: remove map_to_flush and map swap detection Björn Töpel
2020-01-07 18:15 ` John Fastabend
2020-01-07 21:07 ` Toke Høiland-Jørgensen
2020-01-08 3:45 ` John Fastabend
2020-01-08 10:24 ` Björn Töpel
2019-12-19 6:10 ` [PATCH bpf-next v2 8/8] xdp: simplify __bpf_tx_xdp_map() Björn Töpel
2019-12-19 7:18 ` Jesper Dangaard Brouer [this message]
2019-12-20 5:21 ` [PATCH bpf-next v2 0/8] Simplify xdp_do_redirect_map()/xdp_do_flush_map() and XDP maps Alexei Starovoitov
2019-12-20 7:46 ` Jesper Dangaard Brouer
2019-12-20 9:26 ` Jesper Dangaard Brouer
2019-12-20 10:29 ` Toke Høiland-Jørgensen
2020-01-07 11:10 ` Björn Töpel
2020-01-07 11:25 ` Toke Høiland-Jørgensen
2020-01-07 13:05 ` Jesper Dangaard Brouer
2020-01-07 13:27 ` Toke Høiland-Jørgensen
2020-01-07 13:52 ` Jesper Dangaard Brouer
2020-01-07 14:18 ` Toke Høiland-Jørgensen
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