Commit 4edab4c5 authored by Eduard Zingerman's avatar Eduard Zingerman Committed by Alexei Starovoitov
Browse files

selftests/bpf: update send_signal to lower perf evemts frequency 



Similar to commit [1] sample perf events less often in
test_send_signal_nmi(). This should reduce perf events throttling.

[1] 7015843a ("selftests/bpf: Fix send_signal test with nested CONFIG_PARAVIRT")

Signed-off-by: default avatarEduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/r/20241112110906.3045278-5-eddyz87@gmail.com


Signed-off-by: default avatarAlexei Starovoitov <ast@kernel.org>
parent 3209139d

tools/testing/selftests/bpf/prog_tests/send_signal.c

+2 −1
Original line number Diff line number Diff line
@@ -229,7 +229,8 @@ static void test_send_signal_perf(bool signal_thread, bool remote) 
static void test_send_signal_nmi(bool signal_thread, bool remote)

{

	struct perf_event_attr attr = {

		.sample_period = 1,

		.freq = 1,

		.sample_freq = 1000,

		.type = PERF_TYPE_HARDWARE,

		.config = PERF_COUNT_HW_CPU_CYCLES,

	};