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linux/tools/testing/selftests/ftrace/test.d/tracer/wakeup_rt.tc
Masami Hiramatsu c575dea2c1 selftests/ftrace: Add wakeup_rt tracer testcase
Add a testcase for wakeup_rt tracer. This requires chrt
command to test.

Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Shuah Khan (Samsung OSG) <shuah@kernel.org>
2018-10-24 14:49:36 -06:00

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#!/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