1#!/bin/sh 2# SPDX-License-Identifier: GPL-2.0 3# description: event trigger - test inter-event histogram trigger trace action 4 5fail() { #msg 6 echo $1 7 exit_fail 8} 9 10if [ ! -f set_event ]; then 11 echo "event tracing is not supported" 12 exit_unsupported 13fi 14 15if [ ! -f synthetic_events ]; then 16 echo "synthetic event is not supported" 17 exit_unsupported 18fi 19 20if [ ! -f events/sched/sched_process_fork/hist ]; then 21 echo "hist trigger is not supported" 22 exit_unsupported 23fi 24 25grep -q "trace(<synthetic_event>" README || exit_unsupported # version issue 26 27echo "Test create synthetic event" 28 29echo 'wakeup_latency u64 lat pid_t pid char comm[16]' > synthetic_events 30if [ ! -d events/synthetic/wakeup_latency ]; then 31 fail "Failed to create wakeup_latency synthetic event" 32fi 33 34echo "Test create histogram for synthetic event using trace action" 35echo "Test histogram variables,simple expression support and trace action" 36 37echo 'hist:keys=pid:ts0=common_timestamp.usecs if comm=="ping"' > events/sched/sched_wakeup/trigger 38echo 'hist:keys=next_pid:wakeup_lat=common_timestamp.usecs-$ts0:onmatch(sched.sched_wakeup).trace(wakeup_latency,$wakeup_lat,next_pid,next_comm) if next_comm=="ping"' > events/sched/sched_switch/trigger 39echo 'hist:keys=comm,pid,lat:wakeup_lat=lat:sort=lat' > events/synthetic/wakeup_latency/trigger 40 41ping $LOCALHOST -c 5 42 43if ! grep -q "ping" events/synthetic/wakeup_latency/hist; then 44 fail "Failed to create trace action inter-event histogram" 45fi 46 47exit 0 48