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