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