c349d4af86
Add a couple of tests that test the trace_marker histogram triggers. One does a straight histogram test, the other will create a synthetic event and test the latency between two different writes (using filters to differentiate between them). Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Reviewed-by: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
50 lines
1001 B
Bash
50 lines
1001 B
Bash
#!/bin/sh
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# SPDX-License-Identifier: GPL-2.0
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# description: trace_marker trigger - test histogram trigger
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# flags: instance
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do_reset() {
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reset_trigger
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echo > set_event
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clear_trace
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}
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fail() { #msg
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do_reset
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echo $1
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exit_fail
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}
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if [ ! -f set_event ]; then
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echo "event tracing is not supported"
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exit_unsupported
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fi
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if [ ! -d events/ftrace/print ]; then
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echo "event trace_marker is not supported"
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exit_unsupported
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fi
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if [ ! -f events/ftrace/print/trigger ]; then
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echo "event trigger is not supported"
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exit_unsupported
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fi
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if [ ! -f events/ftrace/print/hist ]; then
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echo "hist trigger is not supported"
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exit_unsupported
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fi
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do_reset
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echo "Test histogram trace_marker tigger"
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echo 'hist:keys=common_pid' > events/ftrace/print/trigger
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for i in `seq 1 10` ; do echo "hello" > trace_marker; done
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grep 'hitcount: *10$' events/ftrace/print/hist > /dev/null || \
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fail "hist trigger did not trigger correct times on trace_marker"
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do_reset
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exit 0
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