trigger-field-variable-support.tc

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