3 Commits

Author	SHA1	Message	Date
Kyle Huey	e224d1c1fb	selftests/perf_events: Test FASYNC with watermark wakeups ... The test uses PERF_RECORD_SWITCH records to fill the ring buffer and trigger the watermark wakeup, which in turn should trigger an IO signal. Signed-off-by: Kyle Huey <khuey@kylehuey.com> Signed-off-by: Ingo Molnar <mingo@kernel.org> Link: https://lore.kernel.org/r/20240413141618.4160-4-khuey@kylehuey.com	2024-04-14 22:26:33 +02:00
Marco Elver	6216798bf9	selftests/perf_events: Add kselftest for remove_on_exec ... Add kselftest to test that remove_on_exec removes inherited events from child tasks. Signed-off-by: Marco Elver <elver@google.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/20210408103605.1676875-9-elver@google.com	2021-04-16 16:32:42 +02:00
Marco Elver	f2c3c32f45	selftests/perf_events: Add kselftest for process-wide sigtrap handling ... Add a kselftest for testing process-wide perf events with synchronous SIGTRAP on events (using breakpoints). In particular, we want to test that changes to the event propagate to all children, and the SIGTRAPs are in fact synchronously sent to the thread where the event occurred. Note: The "signal_stress" test case is also added later in the series to perf tool's built-in tests. The test here is more elaborate in that respect, which on one hand avoids bloating the perf tool unnecessarily, but we also benefit from structured tests with TAP-compliant output that the kselftest framework provides. Signed-off-by: Marco Elver <elver@google.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/20210408103605.1676875-8-elver@google.com	2021-04-16 16:32:42 +02:00