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#!/bin/sh
# SPDX-License-Identifier: GPL-2.0
# description: event trigger - test inter-event histogram trigger snapshot action
# requires: set_event snapshot events/sched/sched_process_fork/hist "onchange(var)":README "snapshot()":README
fail() { #msg
echo $1
exit_fail
}
echo "Test snapshot action"
echo 1 > events/sched/enable
echo 'hist:keys=comm:newprio=prio:onchange($newprio).save(comm,prio):onchange($newprio).snapshot() if comm=="ping"' >> events/sched/sched_waking/trigger
ping $LOCALHOST -c 3
nice -n 1 ping $LOCALHOST -c 3
echo 0 > tracing_on
if ! grep -q "changed:" events/sched/sched_waking/hist; then
fail "Failed to create onchange action inter-event histogram"
fi
if ! grep -q "comm=ping" snapshot; then
fail "Failed to create snapshot action inter-event histogram"
fi
exit 0
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