diff options
Diffstat (limited to 'integrationtests/timer_test.go')
| -rw-r--r-- | integrationtests/timer_test.go | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/integrationtests/timer_test.go b/integrationtests/timer_test.go index 7d9b295..10f54e9 100644 --- a/integrationtests/timer_test.go +++ b/integrationtests/timer_test.go @@ -12,6 +12,15 @@ var posixTimerTraceArgs = []string{ "timer_create,timer_settime,timer_gettime,timer_getoverrun,timer_delete,timerfd_create", } +// intervalTimerTraceArgs restricts tracing to the classic interval-timer +// syscalls setitimer/getitimer, which the interval-timer-noop workload issues. +// Both are KindNull (null_event) on enter with an UNCLASSIFIED ret on exit, so +// the test asserts only enter-presence (no path/fd/return to inspect). +var intervalTimerTraceArgs = []string{ + "-trace-syscalls", + "setitimer,getitimer", +} + // TestPosixTimerLifecycle verifies the POSIX per-process timer family is traced // end-to-end. The workload runs timer_create -> timer_settime -> timer_gettime // -> timer_getoverrun -> timer_delete; each must appear as an enter event. @@ -41,3 +50,23 @@ func TestPosixTimerLifecycle(t *testing.T) { "timer_create returns a timer_t, not an fd, and must not be classified like timerfd_create", got) } } + +// TestIntervalTimerNoop verifies the classic interval-timer family (setitimer / +// getitimer) is traced end-to-end. The interval-timer-noop workload issues a +// setitimer(ITIMER_REAL, &{0,0,0,0}, NULL) — an all-zero itimerval that arms +// nothing, so NO SIGALRM is ever scheduled — followed by a getitimer read. +// Both are KindNull on enter, so we assert enter-presence for each. +func TestIntervalTimerNoop(t *testing.T) { + h := newTestHarness(t) + result, pid, err := h.RunWithIorArgs("interval-timer-noop", defaultDuration, intervalTimerTraceArgs) + if err != nil { + t.Fatalf("run scenario interval-timer-noop: %v", err) + } + + AssertNoUnexpectedPID(t, result, pid) + AssertNoUnexpectedComm(t, result, "ioworkload") + AssertEventsPresent(t, result, []ExpectedEvent{ + {Tracepoint: "enter_setitimer", Comm: "ioworkload", MinCount: 1}, + {Tracepoint: "enter_getitimer", Comm: "ioworkload", MinCount: 1}, + }) +} |