Commit 99d09975 authored Oct 21, 2021 by Jiri Olsa Committed by Andrii Nakryiko Oct 21, 2021

selftests/bpf: Use nanosleep tracepoint in perf buffer test



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>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/bpf/20211021114132.8196-4-jolsa@kernel.org

parent aa274f98

tools/testing/selftests/bpf/progs/test_perf_buffer.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -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();