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ba1b9c5048
Use relative path to trigger file instead of absolute debugfs path, because if the user uses tracefs instead of debugfs, it can be mounted at /sys/kernel/tracing. Anyway, since the ftracetest is designed to be run at the tracing directory, user doesn't need to use absolute path. Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
29 lines
678 B
Bash
29 lines
678 B
Bash
#!/bin/sh
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# SPDX-License-Identifier: GPL-2.0
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# description: event trigger - test inter-event histogram trigger onchange action
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fail() { #msg
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echo $1
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exit_fail
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}
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if [ ! -f set_event ]; then
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echo "event tracing is not supported"
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exit_unsupported
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fi
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grep -q "onchange(var)" README || exit_unsupported # version issue
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echo "Test onchange action"
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echo 'hist:keys=comm:newprio=prio:onchange($newprio).save(comm,prio) if comm=="ping"' >> events/sched/sched_waking/trigger
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ping $LOCALHOST -c 3
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nice -n 1 ping $LOCALHOST -c 3
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if ! grep -q "changed:" events/sched/sched_waking/hist; then
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fail "Failed to create onchange action inter-event histogram"
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fi
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exit 0
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