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 7fail() { #msg 8 echo $1 9 exit_fail 10} 11 12echo "Test histogram trace_marker to trace_marker latency histogram trigger" 13 14echo 'latency u64 lat' > synthetic_events 15echo 'hist:keys=common_pid:ts0=common_timestamp.usecs if buf == "start"' > events/ftrace/print/trigger 16echo 'hist:keys=common_pid:lat=common_timestamp.usecs-$ts0:onmatch(ftrace.print).latency($lat) if buf == "end"' >> events/ftrace/print/trigger 17echo 'hist:keys=common_pid,lat:sort=lat' > events/synthetic/latency/trigger 18echo -n "start" > trace_marker 19echo -n "end" > trace_marker 20 21cnt=`grep 'hitcount: *1$' events/ftrace/print/hist | wc -l` 22 23if [ $cnt -ne 2 ]; then 24 fail "hist trace_marker trigger did not trigger correctly" 25fi 26 27grep 'hitcount: *1$' events/synthetic/latency/hist > /dev/null || \ 28 fail "hist trigger did not trigger " 29 30exit 0 31