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#!/bin/sh # SPDX-License-Identifier: GPL-2.0 # description: event trigger - test inter-event histogram trigger trace action with dynamic string param # requires: set_event synthetic_events events/sched/sched_process_exec/hist "char name[]' >> synthetic_events":README fail() { #msg echo $1 exit_fail } echo "Test create synthetic event" echo 'ping_test_latency u64 lat; char filename[]' > synthetic_events if [ ! -d events/synthetic/ping_test_latency ]; then fail "Failed to create ping_test_latency synthetic event" fi echo "Test create histogram for synthetic event using trace action and dynamic strings" echo "Test histogram dynamic string variables,simple expression support and trace action" echo 'hist:key=pid:filenamevar=filename:ts0=common_timestamp.usecs' > events/sched/sched_process_exec/trigger echo 'hist:key=pid:lat=common_timestamp.usecs-$ts0:onmatch(sched.sched_process_exec).ping_test_latency($lat,$filenamevar) if comm == "ping"' > events/sched/sched_process_exit/trigger echo 'hist:keys=filename,lat:sort=filename,lat' > events/synthetic/ping_test_latency/trigger ping $LOCALHOST -c 5 if ! grep -q "ping" events/synthetic/ping_test_latency/hist; then fail "Failed to create dynamic string trace action inter-event histogram" fi exit 0 |