tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-onmax-action-hist.tc

   1 #!/bin/sh
   2 # SPDX-License-Identifier: GPL-2.0
   3 # description: event trigger - test inter-event histogram trigger onmax action
   4
   5 fail() { #msg
   6     echo $1
   7     exit_fail
   8 }
   9
  10 if [ ! -f set_event ]; then
  11     echo "event tracing is not supported"
  12     exit_unsupported
  13 fi
  14
  15 if [ ! -f synthetic_events ]; then
  16     echo "synthetic event is not supported"
  17     exit_unsupported
  18 fi
  19
  20 echo "Test create synthetic event"
  21
  22 echo 'wakeup_latency  u64 lat pid_t pid char comm[16]' > synthetic_events
  23 if [ ! -d events/synthetic/wakeup_latency ]; then
  24     fail "Failed to create wakeup_latency synthetic event"
  25 fi
  26
  27 echo "Test onmax action"
  28
  29 echo 'hist:keys=pid:ts0=common_timestamp.usecs if comm=="ping"' >> events/sched/sched_waking/trigger
  30 echo 'hist:keys=next_pid:wakeup_lat=common_timestamp.usecs-$ts0:onmax($wakeup_lat).save(next_comm,prev_pid,prev_prio,prev_comm) if next_comm=="ping"' >> events/sched/sched_switch/trigger
  31
  32 ping $LOCALHOST -c 3
  33 if ! grep -q "max:" events/sched/sched_switch/hist; then
  34     fail "Failed to create onmax action inter-event histogram"
  35 fi
  36
  37 exit 0