tools/testing/selftests/ftrace/test.d/trigger/trigger-trace-marker-synthetic-kernel.tc

   1 #!/bin/sh
   2 # SPDX-License-Identifier: GPL-2.0
   3 # description: trace_marker trigger - test histogram with synthetic event against kernel event
   4 # requires: set_event synthetic_events events/sched/sched_waking events/ftrace/print/trigger events/ftrace/print/hist
   5 # flags:
   6
   7 fail() { #msg
   8     echo $1
   9     exit_fail
  10 }
  11
  12 echo "Test histogram kernel event to trace_marker latency histogram trigger"
  13
  14 echo 'latency u64 lat' > synthetic_events
  15 echo 'hist:keys=pid:ts0=common_timestamp.usecs' > events/sched/sched_waking/trigger
  16 echo 'hist:keys=common_pid:lat=common_timestamp.usecs-$ts0:onmatch(sched.sched_waking).latency($lat)' > events/ftrace/print/trigger
  17 echo 'hist:keys=common_pid,lat:sort=lat' > events/synthetic/latency/trigger
  18 sleep 1
  19 echo "hello" > trace_marker
  20
  21 grep 'hitcount: *1$' events/ftrace/print/hist > /dev/null || \
  22     fail "hist trigger did not trigger correct times on trace_marker"
  23
  24 grep 'hitcount: *1$' events/synthetic/latency/hist > /dev/null || \
  25     fail "hist trigger did not trigger "
  26
  27 exit 0