1#!/bin/sh 2# SPDX-License-Identifier: GPL2.0 3# description: Test wakeup tracer 4 5if ! which chrt ; then 6 echo "chrt is not found. This test requires nice command." 7 exit_unresolved 8fi 9 10if ! grep -wq "wakeup" available_tracers ; then 11 echo "wakeup tracer is not supported" 12 exit_unsupported 13fi 14 15echo wakeup > current_tracer 16echo 1 > tracing_on 17echo 0 > tracing_max_latency 18 19: "Wakeup higher priority task" 20chrt -f 5 sleep 1 21 22echo 0 > tracing_on 23grep '+ \[[[:digit:]]*\]' trace 24grep '==> \[[[:digit:]]*\]' trace 25 26