trigger-onmatch-action-hist.tc (1150B)
1#!/bin/sh 2# SPDX-License-Identifier: GPL-2.0 3# description: event trigger - test inter-event histogram trigger onmatch action 4# requires: set_event synthetic_events events/sched/sched_process_fork/hist 5 6fail() { #msg 7 echo $1 8 exit_fail 9} 10 11echo "Test create synthetic event" 12 13echo 'wakeup_latency u64 lat pid_t pid char comm[16]' > synthetic_events 14if [ ! -d events/synthetic/wakeup_latency ]; then 15 fail "Failed to create wakeup_latency synthetic event" 16fi 17 18echo "Test create histogram for synthetic event" 19echo "Test histogram variables,simple expression support and onmatch action" 20 21echo 'hist:keys=pid:ts0=common_timestamp.usecs if comm=="ping"' > events/sched/sched_wakeup/trigger 22echo 'hist:keys=next_pid:wakeup_lat=common_timestamp.usecs-$ts0:onmatch(sched.sched_wakeup).wakeup_latency($wakeup_lat,next_pid,next_comm) if next_comm=="ping"' > events/sched/sched_switch/trigger 23echo 'hist:keys=comm,pid,lat:wakeup_lat=lat:sort=lat' > events/synthetic/wakeup_latency/trigger 24 25ping $LOCALHOST -c 5 26if ! grep -q "ping" events/synthetic/wakeup_latency/hist; then 27 fail "Failed to create onmatch action inter-event histogram" 28fi 29 30exit 0