netdev - Re: [PATCHv9 bpf-next 4/4] selftests/bpf: add xdp_redirect

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Date:   Mon, 26 Apr 2021 11:28:32 +0200
From:   Jesper Dangaard Brouer <brouer@...hat.com>
To:     Hangbin Liu <liuhangbin@...il.com>
Cc:     bpf@...r.kernel.org, netdev@...r.kernel.org,
        Toke Høiland-Jørgensen 
        <toke@...hat.com>, Jiri Benc <jbenc@...hat.com>,
        Eelco Chaudron <echaudro@...hat.com>, ast@...nel.org,
        Daniel Borkmann <daniel@...earbox.net>,
        Lorenzo Bianconi <lorenzo.bianconi@...hat.com>,
        David Ahern <dsahern@...il.com>,
        Andrii Nakryiko <andrii.nakryiko@...il.com>,
        Alexei Starovoitov <alexei.starovoitov@...il.com>,
        John Fastabend <john.fastabend@...il.com>,
        Maciej Fijalkowski <maciej.fijalkowski@...el.com>,
        Björn Töpel 
        <bjorn.topel@...il.com>, Martin KaFai Lau <kafai@...com>,
        brouer@...hat.com
Subject: Re: [PATCHv9 bpf-next 4/4] selftests/bpf: add xdp_redirect_multi
 test

On Thu, 22 Apr 2021 15:14:54 +0800
Hangbin Liu <liuhangbin@...il.com> wrote:

> Add a bpf selftest for new helper xdp_redirect_map_multi(). In this
> test there are 3 forward groups and 1 exclude group. The test will
> redirect each interface's packets to all the interfaces in the forward
> group, and exclude the interface in exclude map.
> 
> Two maps (DEVMAP, DEVMAP_HASH) and two xdp modes (generic, drive) will
> be tested. XDP egress program will also be tested by setting pkt src MAC
> to egress interface's MAC address.
> 
> For more test details, you can find it in the test script. Here is
> the test result.
> ]# ./test_xdp_redirect_multi.sh

Running this test takes a long time around 3 minutes.

$ sudo time -v ./test_xdp_redirect_multi.sh
Pass: xdpgeneric arp ns1-2
Pass: xdpgeneric arp ns1-3
Pass: xdpgeneric arp ns1-4
Pass: xdpgeneric ping ns1-2
Pass: xdpgeneric ping ns1-3
Pass: xdpgeneric ping ns1-4
Pass: xdpgeneric ping6 ns1-2
Pass: xdpgeneric ping6 ns1-1 number
Pass: xdpgeneric ping6 ns1-2 number
Pass: xdpdrv arp ns1-2
Pass: xdpdrv arp ns1-3
Pass: xdpdrv arp ns1-4
Pass: xdpdrv ping ns1-2
Pass: xdpdrv ping ns1-3
Pass: xdpdrv ping ns1-4
Pass: xdpdrv ping6 ns1-2
Pass: xdpdrv ping6 ns1-1 number
Pass: xdpdrv ping6 ns1-2 number
Pass: xdpegress mac ns1-2
Pass: xdpegress mac ns1-3
Pass: xdpegress mac ns1-4
Summary: PASS 21, FAIL 0
	Command being timed: "./test_xdp_redirect_multi.sh"
	User time (seconds): 0.15
	System time (seconds): 0.51
	Percent of CPU this job got: 0%
	Elapsed (wall clock) time (h:mm:ss or m:ss): 3:09.68
	Average shared text size (kbytes): 0
	Average unshared data size (kbytes): 0
	Average stack size (kbytes): 0
	Average total size (kbytes): 0
	Maximum resident set size (kbytes): 6904
	Average resident set size (kbytes): 0
	Major (requiring I/O) page faults: 13
	Minor (reclaiming a frame) page faults: 46316
	Voluntary context switches: 1907
	Involuntary context switches: 371
	Swaps: 0
	File system inputs: 0
	File system outputs: 0
	Socket messages sent: 0
	Socket messages received: 0
	Signals delivered: 0
	Page size (bytes): 4096
	Exit status: 0

-- 
Best regards,
  Jesper Dangaard Brouer
  MSc.CS, Principal Kernel Engineer at Red Hat
  LinkedIn: http://www.linkedin.com/in/brouer