tools/testing/selftests/ftrace/test.d/tracer/wakeup.tc

   1 #!/bin/sh
   2 # SPDX-License-Identifier: GPL-2.0
   3 # description: Test wakeup tracer
   4 # requires: wakeup:tracer
   5
   6 if ! which chrt ; then
   7   echo "chrt is not found. This test requires nice command."
   8   exit_unresolved
   9 fi
  10
  11 echo wakeup > current_tracer
  12 echo 1 > tracing_on
  13 echo 0 > tracing_max_latency
  14
  15 : "Wakeup higher priority task"
  16 chrt -f 5 sleep 1
  17
  18 echo 0 > tracing_on
  19 grep '+ \[[[:digit:]]*\]' trace
  20 grep '==> \[[[:digit:]]*\]' trace
  21