1 #!/bin/sh
2 # SPDX-License-Identifier: GPL-2.0
3 # description: event trigger - test inter-event combined histogram trigger
4 # requires: set_event synthetic_events events/sched/sched_process_fork/hist ping:program
5
6 fail() { #msg
7 echo $1
8 exit_fail
9 }
10
11 echo "Test create synthetic event"
12
13 echo 'waking_latency u64 lat pid_t pid' > synthetic_events
14 if [ ! -d events/synthetic/waking_latency ]; then
15 fail "Failed to create waking_latency synthetic event"
16 fi
17
18 echo "Test combined histogram"
19
20 echo 'hist:keys=pid:ts0=common_timestamp.usecs if comm=="ping"' > events/sched/sched_waking/trigger
21 echo 'hist:keys=pid:waking_lat=common_timestamp.usecs-$ts0:onmatch(sched.sched_waking).waking_latency($waking_lat,pid) if comm=="ping"' > events/sched/sched_wakeup/trigger
22 echo 'hist:keys=pid,lat:sort=pid,lat' > events/synthetic/waking_latency/trigger
23
24 echo 'wakeup_latency u64 lat pid_t pid' >> synthetic_events
25 echo 'hist:keys=pid:ts1=common_timestamp.usecs if comm=="ping"' >> events/sched/sched_wakeup/trigger
26 echo 'hist:keys=next_pid:wakeup_lat=common_timestamp.usecs-$ts1:onmatch(sched.sched_wakeup).wakeup_latency($wakeup_lat,next_pid) if next_comm=="ping"' > events/sched/sched_switch/trigger
27
28 echo 'waking_plus_wakeup_latency u64 lat; pid_t pid' >> synthetic_events
29 echo 'hist:keys=pid,lat:sort=pid,lat:ww_lat=$waking_lat+$wakeup_lat:onmatch(synthetic.wakeup_latency).waking_plus_wakeup_latency($ww_lat,pid)' >> events/synthetic/wakeup_latency/trigger
30 echo 'hist:keys=pid,lat:sort=pid,lat' >> events/synthetic/waking_plus_wakeup_latency/trigger
31
32 ping $LOCALHOST -c 3
33 if ! grep -q "pid:" events/synthetic/waking_plus_wakeup_latency/hist; then
34 fail "Failed to create combined histogram"
35 fi
36
37 exit 0
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