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