diff options
| author | Alexei Starovoitov <ast@kernel.org> | 2019-05-21 20:14:21 -0700 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2019-05-23 16:20:57 +0200 |
| commit | 7c9441066ab53168093c79477aabd575f7c14129 (patch) | |
| tree | f9b0f0dece13fb49d504ce72851404861c6b3849 /tools/testing/selftests/bpf/progs/pyperf180.c | |
| parent | 7c0c6095d48dcd0e67c917aa73cdbb2715aafc36 (diff) | |
selftests/bpf: add pyperf scale test
Add a snippet of pyperf bpf program used to collect python stack traces
as a scale test for the verifier.
At 189 loop iterations llvm 9.0 starts ignoring '#pragma unroll'
and generates partially unrolled loop instead.
Hence use 50, 100, and 180 loop iterations to stress test.
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Diffstat (limited to 'tools/testing/selftests/bpf/progs/pyperf180.c')
| -rw-r--r-- | tools/testing/selftests/bpf/progs/pyperf180.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/progs/pyperf180.c b/tools/testing/selftests/bpf/progs/pyperf180.c new file mode 100644 index 000000000000..c39f559d3100 --- /dev/null +++ b/tools/testing/selftests/bpf/progs/pyperf180.c @@ -0,0 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 +// Copyright (c) 2019 Facebook +#define STACK_MAX_LEN 180 +#include "pyperf.h" |