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