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

   1 #!/bin/sh
   2 # SPDX-License-Identifier: GPL-2.0
   3 # description: trace_marker trigger - test histogram with synthetic event
   4 # requires: set_event synthetic_events events/ftrace/print/trigger events/ftrace/print/hist
   5 # flags:
   6
   7 fail() { #msg
   8     echo $1
   9     exit_fail
  10 }
  11
  12 echo "Test histogram trace_marker to trace_marker latency histogram trigger"
  13
  14 echo 'latency u64 lat' > synthetic_events
  15 echo 'hist:keys=common_pid:ts0=common_timestamp.usecs if buf == "start"' > events/ftrace/print/trigger
  16 echo 'hist:keys=common_pid:lat=common_timestamp.usecs-$ts0:onmatch(ftrace.print).latency($lat) if buf == "end"' >> events/ftrace/print/trigger
  17 echo 'hist:keys=common_pid,lat:sort=lat' > events/synthetic/latency/trigger
  18 echo -n "start" > trace_marker
  19 echo -n "end" > trace_marker
  20
  21 cnt=`grep 'hitcount: *1$' events/ftrace/print/hist | wc -l`
  22
  23 if [ $cnt -ne 2 ]; then
  24     fail "hist trace_marker trigger did not trigger correctly"
  25 fi
  26
  27 grep 'hitcount: *1$' events/synthetic/latency/hist > /dev/null || \
  28     fail "hist trigger did not trigger "
  29
  30 exit 0