25 lines
880 B
Plaintext
25 lines
880 B
Plaintext
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#!/bin/sh
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# SPDX-License-Identifier: GPL-2.0
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# description: event trigger - test inter-event histogram trigger trace action with dynamic string param
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# requires: set_event synthetic_events events/sched/sched_process_exec/hist "long[]' >> synthetic_events":README
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fail() { #msg
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echo $1
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exit_fail
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}
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echo "Test create synthetic event with stack"
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echo 's:wake_lat pid_t pid; u64 delta; unsigned long[] stack;' > dynamic_events
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echo 'hist:keys=next_pid:ts=common_timestamp.usecs,st=stacktrace if prev_state == 1||prev_state == 2' >> events/sched/sched_switch/trigger
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echo 'hist:keys=prev_pid:delta=common_timestamp.usecs-$ts,s=$st:onmax($delta).trace(wake_lat,prev_pid,$delta,$s)' >> events/sched/sched_switch/trigger
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echo 1 > events/synthetic/wake_lat/enable
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sleep 1
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if ! grep -q "=>.*sched" trace; then
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fail "Failed to create synthetic event with stack"
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fi
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exit 0
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