1#!/bin/sh
2# description: event trigger - test inter-event combined histogram trigger
3
4do_reset() {
5    reset_trigger
6    echo > set_event
7    clear_trace
8}
9
10fail() { #msg
11    do_reset
12    echo $1
13    exit_fail
14}
15
16if [ ! -f set_event ]; then
17    echo "event tracing is not supported"
18    exit_unsupported
19fi
20
21if [ ! -f synthetic_events ]; then
22    echo "synthetic event is not supported"
23    exit_unsupported
24fi
25
26reset_tracer
27do_reset
28clear_synthetic_events
29
30echo "Test create synthetic event"
31
32echo 'waking_latency  u64 lat pid_t pid' > synthetic_events
33if [ ! -d events/synthetic/waking_latency ]; then
34    fail "Failed to create waking_latency synthetic event"
35fi
36
37echo "Test combined histogram"
38
39echo 'hist:keys=pid:ts0=common_timestamp.usecs if comm=="ping"' > events/sched/sched_waking/trigger
40echo 'hist:keys=pid:waking_lat=common_timestamp.usecs-$ts0:onmatch(sched.sched_waking).waking_latency($waking_lat,pid) if comm=="ping"' > events/sched/sched_wakeup/trigger
41echo 'hist:keys=pid,lat:sort=pid,lat' > events/synthetic/waking_latency/trigger
42
43echo 'wakeup_latency u64 lat pid_t pid' >> synthetic_events
44echo 'hist:keys=pid:ts1=common_timestamp.usecs if comm=="ping"' >> events/sched/sched_wakeup/trigger
45echo 'hist:keys=next_pid:wakeup_lat=common_timestamp.usecs-$ts1:onmatch(sched.sched_wakeup).wakeup_latency($wakeup_lat,next_pid) if next_comm=="ping"' > events/sched/sched_switch/trigger
46
47echo 'waking+wakeup_latency u64 lat; pid_t pid' >> synthetic_events
48echo 'hist:keys=pid,lat:sort=pid,lat:ww_lat=$waking_lat+$wakeup_lat:onmatch(synthetic.wakeup_latency).waking+wakeup_latency($ww_lat,pid)' >> events/synthetic/wakeup_latency/trigger
49echo 'hist:keys=pid,lat:sort=pid,lat' >> events/synthetic/waking+wakeup_latency/trigger
50
51ping localhost -c 3
52if ! grep -q "pid:" events/synthetic/waking+wakeup_latency/hist; then
53    fail "Failed to create combined histogram"
54fi
55
56do_reset
57
58exit 0
59