selftests: bpf: Add xdp_perf test

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The xdp_perf is a dummy XDP test, only used to measure the the cost of
jumping into a naive XDP program one million times.

To build and run the program:
  $ cd tools/testing/selftests/bpf
  $ make
  $ ./test_progs -v -t xdp_perf

Signed-off-by: Björn Töpel <bjorn.topel@intel.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20191213175112.30208-6-bjorn.topel@gmail.com

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Björn Töpel 2019-12-13 18:51:11 +01:00 • committed by Alexei Starovoitov

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commit e754f5a6e3

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tools/testing/selftests/bpf/prog_tests/xdp_perf.c

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