On Fri, 17 Aug 2018 01:42:52 +0900 Masami Hiramatsu mhiramat@kernel.org wrote:
Add a testcase for wakeup_rt tracer. This requires chrt command to test.
Signed-off-by: Masami Hiramatsu mhiramat@kernel.org
.../selftests/ftrace/test.d/tracer/wakeup_rt.tc | 25 ++++++++++++++++++++ 1 file changed, 25 insertions(+) create mode 100644 tools/testing/selftests/ftrace/test.d/tracer/wakeup_rt.tc
diff --git a/tools/testing/selftests/ftrace/test.d/tracer/wakeup_rt.tc b/tools/testing/selftests/ftrace/test.d/tracer/wakeup_rt.tc new file mode 100644 index 000000000000..3f279072ec2d --- /dev/null +++ b/tools/testing/selftests/ftrace/test.d/tracer/wakeup_rt.tc @@ -0,0 +1,25 @@ +#!/bin/sh +# SPDX-License-Identifier: GPL2.0 +# description: Test wakeup RT tracer
+if ! which nice ; then
- echo "chrt is not found. This test requires chrt command."
- exit_unresolved
+fi
+if ! grep -wq "wakeup_rt" available_tracers ; then
- echo "wakeup_rt tracer is not supported"
- exit_unsupported
+fi
+echo wakeup > current_tracer
I think you meant "echo wakeup_rt" ;-)
-- Steve
+echo 1 > tracing_on +echo 0 > tracing_max_latency
+: "Wakeup a realtime task" +chrt -f 5 sleep 1
+echo 0 > tracing_on +grep "+ [[[:digit:]]*]" trace +grep "==> [[[:digit:]]*]" trace