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