[PATCH bpf-next 3/3] selftests/bpf: Use nanosleep tracepoint in perf buffer test
From: Jiri Olsa <hidden>
Date: 2021-10-21 11:41:58
Also in:
bpf
Subsystem:
bpf [general] (safe dynamic programs and tools), bpf [selftests] (test runners & infrastructure), kernel selftest framework, the rest · Maintainers:
Alexei Starovoitov, Daniel Borkmann, Andrii Nakryiko, Eduard Zingerman, Kumar Kartikeya Dwivedi, Shuah Khan, Shuah Khan, Linus Torvalds
The perf buffer tests triggers trace with nanosleep syscall, but monitors all syscalls, which results in lot of data in the buffer and makes it harder to debug. Let's lower the trace traffic and monitor just nanosleep syscall. Signed-off-by: Jiri Olsa <jolsa@kernel.org> --- tools/testing/selftests/bpf/progs/test_perf_buffer.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/testing/selftests/bpf/progs/test_perf_buffer.c b/tools/testing/selftests/bpf/progs/test_perf_buffer.c
index d37ce29fd393..a08874c5bdf2 100644
--- a/tools/testing/selftests/bpf/progs/test_perf_buffer.c
+++ b/tools/testing/selftests/bpf/progs/test_perf_buffer.c@@ -12,7 +12,7 @@ struct { __type(value, int); } perf_buf_map SEC(".maps"); -SEC("tp/raw_syscalls/sys_enter") +SEC("tp/syscalls/sys_enter_nanosleep") int handle_sys_enter(void *ctx) { int cpu = bpf_get_smp_processor_id();
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2.31.1