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