Similar to commit [1] sample perf events less often in
test_send_signal_nmi(). This should reduce perf events throttling.
[1] 7015843afcaf ("selftests/bpf: Fix send_signal test with nested CONFIG_PARAVIRT")
Signed-off-by: Eduard Zingerman <eddyz87@xxxxxxxxx>
---
tools/testing/selftests/bpf/prog_tests/send_signal.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/tools/testing/selftests/bpf/prog_tests/send_signal.c b/tools/testing/selftests/bpf/prog_tests/send_signal.c
index 4e03d7a4c6f7..1702aa592c2c 100644
--- a/tools/testing/selftests/bpf/prog_tests/send_signal.c
+++ b/tools/testing/selftests/bpf/prog_tests/send_signal.c
@@ -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,
};
--
2.47.0
