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authorAlexei Starovoitov <ast@kernel.org>2019-04-01 21:27:48 -0700
committerDaniel Borkmann <daniel@iogearbox.net>2019-04-04 01:27:38 +0200
commite5e7a8f2d858a91b79c4afc51a3f15edcbf9cb60 (patch)
treeaf71adf7cb55049a8f60f76a4acc3cc330cea4e0 /tools/testing/selftests/bpf/test_progs.h
parentlibbpf: teach libbpf about log_level bit 2 (diff)
downloadlinux-dev-e5e7a8f2d858a91b79c4afc51a3f15edcbf9cb60.tar.xz
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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 '')
-rw-r--r--tools/testing/selftests/bpf/test_progs.h1
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