1#!/bin/sh
2# SPDX-License-Identifier: GPL-2.0
3# description: event trigger - test inter-event histogram trigger onmatch action
4# requires: set_event synthetic_events events/sched/sched_process_fork/hist
5
6fail() { #msg
7    echo $1
8    exit_fail
9}
10
11echo "Test create synthetic event"
12
13echo 'wakeup_latency  u64 lat pid_t pid char comm[16]' > synthetic_events
14if [ ! -d events/synthetic/wakeup_latency ]; then
15    fail "Failed to create wakeup_latency synthetic event"
16fi
17
18echo "Test create histogram for synthetic event"
19echo "Test histogram variables,simple expression support and onmatch action"
20
21echo 'hist:keys=pid:ts0=common_timestamp.usecs if comm=="ping"' > events/sched/sched_wakeup/trigger
22echo 'hist:keys=next_pid:wakeup_lat=common_timestamp.usecs-$ts0:onmatch(sched.sched_wakeup).wakeup_latency($wakeup_lat,next_pid,next_comm) if next_comm=="ping"' > events/sched/sched_switch/trigger
23echo 'hist:keys=comm,pid,lat:wakeup_lat=lat:sort=lat' > events/synthetic/wakeup_latency/trigger
24
25ping $LOCALHOST -c 5
26if ! grep -q "ping" events/synthetic/wakeup_latency/hist; then
27    fail "Failed to create onmatch action inter-event histogram"
28fi
29
30exit 0
31