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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
25 lines
592 B
C
25 lines
592 B
C
// SPDX-License-Identifier: GPL-2.0
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#include <test_progs.h>
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void test_xdp_perf(void)
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{
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const char *file = "./xdp_dummy.o";
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__u32 duration, retval, size;
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struct bpf_object *obj;
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char in[128], out[128];
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int err, prog_fd;
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err = bpf_prog_load(file, BPF_PROG_TYPE_XDP, &obj, &prog_fd);
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if (CHECK_FAIL(err))
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return;
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err = bpf_prog_test_run(prog_fd, 1000000, &in[0], 128,
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out, &size, &retval, &duration);
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CHECK(err || retval != XDP_PASS || size != 128,
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"xdp-perf",
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"err %d errno %d retval %d size %d\n",
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err, errno, retval, size);
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bpf_object__close(obj);
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}
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