trigger-snapshot-action-hist.tc

 1#!/bin/sh
 2# SPDX-License-Identifier: GPL-2.0
 3# description: event trigger - test inter-event histogram trigger snapshot action
 4# requires: set_event snapshot events/sched/sched_process_fork/hist "onchange(var)":README "snapshot()":README ping:program
 5# flags: instance
 6
 7fail() { #msg
 8    echo $1
 9    exit_fail
10}
11
12echo "Test snapshot action"
13
14echo 1 > events/sched/enable
15
16echo 'hist:keys=comm:newprio=prio:onchange($newprio).save(comm,prio):onchange($newprio).snapshot() if comm=="ping"' >> events/sched/sched_waking/trigger
17
18ping $LOCALHOST -c 3
19nice -n 1 ping $LOCALHOST -c 3
20
21echo 0 > tracing_on
22
23if ! grep -q "changed:" events/sched/sched_waking/hist; then
24    fail "Failed to create onchange action inter-event histogram"
25fi
26
27if ! grep -q "comm=ping" snapshot; then
28    fail "Failed to create snapshot action inter-event histogram"
29fi
30
31echo '!hist:keys=comm:newprio=prio:onchange($newprio).save(comm,prio):onchange($newprio).snapshot() if comm=="ping"' >> events/sched/sched_waking/trigger
32
33exit 0