diff options
| author | Björn Töpel <bjorn.topel@intel.com> | 2019-12-13 18:51:11 +0100 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2019-12-13 13:09:32 -0800 |
| commit | e754f5a6e36b63d6732f52adcbe4c447fd66896f (patch) | |
| tree | 07880954b0a153c950a1d0f12e12fdf426675754 /tools/testing | |
| parent | f23c4b3924d2e9382820ee677b68d42d5dd7b08b (diff) | |
selftests: bpf: Add xdp_perf test
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
Diffstat (limited to 'tools/testing')
| -rw-r--r-- | tools/testing/selftests/bpf/prog_tests/xdp_perf.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/prog_tests/xdp_perf.c b/tools/testing/selftests/bpf/prog_tests/xdp_perf.c new file mode 100644 index 000000000000..7185bee16fe4 --- /dev/null +++ b/tools/testing/selftests/bpf/prog_tests/xdp_perf.c @@ -0,0 +1,25 @@ +// SPDX-License-Identifier: GPL-2.0 +#include <test_progs.h> + +void test_xdp_perf(void) +{ + const char *file = "./xdp_dummy.o"; + __u32 duration, retval, size; + struct bpf_object *obj; + char in[128], out[128]; + int err, prog_fd; + + err = bpf_prog_load(file, BPF_PROG_TYPE_XDP, &obj, &prog_fd); + if (CHECK_FAIL(err)) + return; + + err = bpf_prog_test_run(prog_fd, 1000000, &in[0], 128, + out, &size, &retval, &duration); + + CHECK(err || retval != XDP_PASS || size != 128, + "xdp-perf", + "err %d errno %d retval %d size %d\n", + err, errno, retval, size); + + bpf_object__close(obj); +} |