On Fri, 17 Aug 2018 01:42:52 +0900 Masami Hiramatsu <mhira...@kernel.org> wrote:
> Add a testcase for wakeup_rt tracer. This requires chrt > command to test. > > Signed-off-by: Masami Hiramatsu <mhira...@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 > +
