From 69aaf58745250cd27689dc5e8c24468bc173625a Mon Sep 17 00:00:00 2001 From: Sebastian Huber Date: Wed, 10 Nov 2021 09:15:58 +0100 Subject: libtest: Improve the interrupt test timing If no state change occurred during the test action, then assume a late interrupt. --- cpukit/libtest/t-test-interrupt.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/cpukit/libtest/t-test-interrupt.c b/cpukit/libtest/t-test-interrupt.c index 5d83b7876a..85b9b6ff69 100644 --- a/cpukit/libtest/t-test-interrupt.c +++ b/cpukit/libtest/t-test-interrupt.c @@ -456,9 +456,16 @@ T_interrupt_test(const T_interrupt_test_config *config, void *arg) lower_bound[sample] = lower - delta; sample = (sample + 1) % T_INTERRUPT_SAMPLE_COUNT; - } else if (state == T_INTERRUPT_TEST_LATE) { + } else if (state == T_INTERRUPT_TEST_LATE || + state == T_INTERRUPT_TEST_ACTION) { uint_fast32_t upper; + /* + * If the state is T_INTERRUPT_TEST_ACTION, then there + * was probably no interrupt during the action, so the + * interrupt would be late. + */ + lower_sum -= lower_bound[sample]; lower_sum += busy; lower_bound[sample] = busy; -- cgit v1.2.3