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| author |   Alexei Starovoitov <ast@kernel.org> | 2019-04-01 21:27:48 -0700 |
|---|---|---|
| committer |   Daniel Borkmann <daniel@iogearbox.net> | 2019-04-04 01:27:38 +0200 |
| commit | e5e7a8f2d858a91b79c4afc51a3f15edcbf9cb60 (patch) | |
| tree | af71adf7cb55049a8f60f76a4acc3cc330cea4e0 /tools/testing/selftests/bpf/test_progs.h | |
| parent | libbpf: teach libbpf about log_level bit 2 (diff) | |
| download | linux-dev-e5e7a8f2d858a91b79c4afc51a3f15edcbf9cb60.tar.xz linux-dev-e5e7a8f2d858a91b79c4afc51a3f15edcbf9cb60.zip | |
selftests/bpf: add few verifier scale tests
Add 3 basic tests that stress verifier scalability.
test_verif_scale1.c calls non-inlined jhash() function 90 times on
different position in the packet.
This test simulates network packet parsing.
jhash function is ~140 instructions and main program is ~1200 insns.
test_verif_scale2.c force inlines jhash() function 90 times.
This program is ~15k instructions long.
test_verif_scale3.c calls non-inlined jhash() function 90 times on
But this time jhash has to process 32-bytes from the packet
instead of 14-bytes in tests 1 and 2.
jhash function is ~230 insns and main program is ~1200 insns.
$ test_progs -s
can be used to see verifier stats.
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Diffstat (limited to 'tools/testing/selftests/bpf/test_progs.h')
| -rw-r--r-- | tools/testing/selftests/bpf/test_progs.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/test_progs.h b/tools/testing/selftests/bpf/test_progs.h index 51a07367cd43..f095e1d4c657 100644 --- a/tools/testing/selftests/bpf/test_progs.h +++ b/tools/testing/selftests/bpf/test_progs.h @@ -40,6 +40,7 @@ typedef __u16 __sum16; extern int error_cnt, pass_cnt; extern bool jit_enabled; +extern bool verifier_stats; #define MAGIC_BYTES 123 |