Add a testcase for wakeup_rt tracer. This requires chrt command to test. Signed-off-by: Masami Hiramatsu <mhiramat@xxxxxxxxxx> --- Changes in v3: - Check "chrt" command exist correctly. - Use "wakeup_rt" tracer correctly. --- .../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..f99b5178e00a --- /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 chrt ; 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_rt > current_tracer +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 +
