1#!/bin/sh
2# SPDX-License-Identifier: GPL-2.0
3# description: event trigger - test inter-event histogram trigger onmax action
4
5fail() { #msg
6    echo $1
7    exit_fail
8}
9
10if [ ! -f set_event ]; then
11    echo "event tracing is not supported"
12    exit_unsupported
13fi
14
15if [ ! -f synthetic_events ]; then
16    echo "synthetic event is not supported"
17    exit_unsupported
18fi
19
20if [ ! -f events/sched/sched_process_fork/hist ]; then
21    echo "hist trigger is not supported"
22    exit_unsupported
23fi
24
25echo "Test create synthetic event"
26
27echo 'wakeup_latency  u64 lat pid_t pid char comm[16]' > synthetic_events
28if [ ! -d events/synthetic/wakeup_latency ]; then
29    fail "Failed to create wakeup_latency synthetic event"
30fi
31
32echo "Test onmax action"
33
34echo 'hist:keys=pid:ts0=common_timestamp.usecs if comm=="ping"' >> events/sched/sched_waking/trigger
35echo 'hist:keys=next_pid:wakeup_lat=common_timestamp.usecs-$ts0:onmax($wakeup_lat).save(next_comm,prev_pid,prev_prio,prev_comm) if next_comm=="ping"' >> events/sched/sched_switch/trigger
36
37ping $LOCALHOST -c 3
38if ! grep -q "max:" events/sched/sched_switch/hist; then
39    fail "Failed to create onmax action inter-event histogram"
40fi
41
42exit 0
43