1#!/bin/sh 2# SPDX-License-Identifier: GPL-2.0 3# description: event trigger - test field variable support 4# requires: set_event synthetic_events events/sched/sched_process_fork/hist 5 6fail() { #msg 7 echo $1 8 exit_fail 9} 10 11echo "Test field variable support" 12 13echo 'wakeup_latency u64 lat; pid_t pid; int prio; char comm[16]' > synthetic_events 14echo 'hist:keys=comm:ts0=common_timestamp.usecs if comm=="ping"' > events/sched/sched_waking/trigger 15echo 'hist:keys=next_comm:wakeup_lat=common_timestamp.usecs-$ts0:onmatch(sched.sched_waking).wakeup_latency($wakeup_lat,next_pid,sched.sched_waking.prio,next_comm) if next_comm=="ping"' > events/sched/sched_switch/trigger 16echo 'hist:keys=pid,prio,comm:vals=lat:sort=pid,prio' > events/synthetic/wakeup_latency/trigger 17 18ping $LOCALHOST -c 3 19if ! grep -q "ping" events/synthetic/wakeup_latency/hist; then 20 fail "Failed to create inter-event histogram" 21fi 22 23if ! grep -q "synthetic_prio=prio" events/sched/sched_waking/hist; then 24 fail "Failed to create histogram with field variable" 25fi 26 27echo '!hist:keys=next_comm:wakeup_lat=common_timestamp.usecs-$ts0:onmatch(sched.sched_waking).wakeup_latency($wakeup_lat,next_pid,sched.sched_waking.prio,next_comm) if next_comm=="ping"' >> events/sched/sched_switch/trigger 28 29if grep -q "synthetic_prio=prio" events/sched/sched_waking/hist; then 30 fail "Failed to remove histogram with field variable" 31fi 32 33exit 0 34