| #!/bin/sh |
| # SPDX-License-Identifier: GPL-2.0 |
| # description: event trigger - test field variable support |
| |
| fail() { #msg |
| echo $1 |
| exit_fail |
| } |
| |
| if [ ! -f set_event ]; then |
| echo "event tracing is not supported" |
| exit_unsupported |
| fi |
| |
| if [ ! -f synthetic_events ]; then |
| echo "synthetic event is not supported" |
| exit_unsupported |
| fi |
| |
| echo "Test field variable support" |
| |
| echo 'wakeup_latency u64 lat; pid_t pid; int prio; char comm[16]' > synthetic_events |
| echo 'hist:keys=comm:ts0=common_timestamp.usecs if comm=="ping"' > events/sched/sched_waking/trigger |
| echo 'hist:keys=next_comm:wakeup_lat=common_timestamp.usecs-$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 |
| echo 'hist:keys=pid,prio,comm:vals=lat:sort=pid,prio' > events/synthetic/wakeup_latency/trigger |
| |
| ping $LOCALHOST -c 3 |
| if ! grep -q "ping" events/synthetic/wakeup_latency/hist; then |
| fail "Failed to create inter-event histogram" |
| fi |
| |
| if ! grep -q "synthetic_prio=prio" events/sched/sched_waking/hist; then |
| fail "Failed to create histogram with field variable" |
| fi |
| |
| echo '!hist:keys=next_comm:wakeup_lat=common_timestamp.usecs-$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 |
| |
| if grep -q "synthetic_prio=prio" events/sched/sched_waking/hist; then |
| fail "Failed to remove histogram with field variable" |
| fi |
| |
| exit 0 |