xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

selftests/bpf: add few verifier scale tests

Browse Source 
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>
This commit is contained in:
Alexei Starovoitov
2019-04-01 21:27:48 -07:00
committed by Daniel Borkmann
parent da11b41758
commit e5e7a8f2d8
7 changed files with 215 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
tools/testing/selftests/bpf/test_progs.h
View File

@@ -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