test.d/trigger/trigger-trace-marker-synthetic.tc

0001 #!/bin/sh
0002 # SPDX-License-Identifier: GPL-2.0
0003 # description: trace_marker trigger - test histogram with synthetic event
0004 # requires: set_event synthetic_events events/ftrace/print/trigger events/ftrace/print/hist
0005 # flags:
0006
0007 fail() { #msg
0008     echo $1
0009     exit_fail
0010 }
0011
0012 echo "Test histogram trace_marker to trace_marker latency histogram trigger"
0013
0014 echo 'latency u64 lat' > synthetic_events
0015 echo 'hist:keys=common_pid:ts0=common_timestamp.usecs if buf == "start"' > events/ftrace/print/trigger
0016 echo 'hist:keys=common_pid:lat=common_timestamp.usecs-$ts0:onmatch(ftrace.print).latency($lat) if buf == "end"' >> events/ftrace/print/trigger
0017 echo 'hist:keys=common_pid,lat:sort=lat' > events/synthetic/latency/trigger
0018 echo -n "start" > trace_marker
0019 echo -n "end" > trace_marker
0020
0021 cnt=`grep 'hitcount: *1$' events/ftrace/print/hist | wc -l`
0022
0023 if [ $cnt -ne 2 ]; then
0024     fail "hist trace_marker trigger did not trigger correctly"
0025 fi
0026
0027 grep 'hitcount: *1$' events/synthetic/latency/hist > /dev/null || \
0028     fail "hist trigger did not trigger "
0029
0030 exit 0