blob: e2ef5268b7e9e95e964a96ff6cc8883c180c8483 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
|
#!/bin/sh
# SPDX-License-Identifier: GPL-2.0
# description: event trigger - test inter-event histogram trigger trace action
# requires: set_event synthetic_events events/sched/sched_process_fork/hist
fail() { #msg
echo $1
exit_fail
}
grep -q "trace(<synthetic_event>" README || exit_unsupported # version issue
echo "Test create synthetic event"
echo 'wakeup_latency u64 lat pid_t pid char comm[16]' > synthetic_events
if [ ! -d events/synthetic/wakeup_latency ]; then
fail "Failed to create wakeup_latency synthetic event"
fi
echo "Test create histogram for synthetic event using trace action"
echo "Test histogram variables,simple expression support and trace action"
echo 'hist:keys=pid:ts0=common_timestamp.usecs if comm=="ping"' > events/sched/sched_wakeup/trigger
echo 'hist:keys=next_pid:wakeup_lat=common_timestamp.usecs-$ts0:onmatch(sched.sched_wakeup).trace(wakeup_latency,$wakeup_lat,next_pid,next_comm) if next_comm=="ping"' > events/sched/sched_switch/trigger
echo 'hist:keys=comm,pid,lat:wakeup_lat=lat:sort=lat' > events/synthetic/wakeup_latency/trigger
ping $LOCALHOST -c 5
if ! grep -q "ping" events/synthetic/wakeup_latency/hist; then
fail "Failed to create trace action inter-event histogram"
fi
exit 0
|
