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1a4ea83a6e
While sched* events being traced and sched* events continuously happen,
"[xx] event tracing - enable/disable with subsystem level files" would
not stop as on some slower systems it seems to take forever.
Select the first 100 lines of output would be enough to judge whether
there are more than 3 types of sched events.
Fixes: 815b18ea66 ("ftracetest: Add basic event tracing test cases")
Cc: stable@vger.kernel.org
Signed-off-by: Yuanhe Shu <xiangzao@linux.alibaba.com>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Acked-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
49 lines
925 B
Bash
49 lines
925 B
Bash
#!/bin/sh
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# SPDX-License-Identifier: GPL-2.0
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# description: event tracing - enable/disable with subsystem level files
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# requires: set_event events/sched/enable
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# flags: instance
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do_reset() {
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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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echo $1
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exit_fail
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}
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echo 'sched:*' > set_event
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yield
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count=`head -n 100 trace | grep -v ^# | awk '{ print $5 }' | sort -u | wc -l`
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if [ $count -lt 3 ]; then
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fail "at least fork, exec and exit events should be recorded"
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fi
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do_reset
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echo 1 > events/sched/enable
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yield
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count=`head -n 100 trace | grep -v ^# | awk '{ print $5 }' | sort -u | wc -l`
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if [ $count -lt 3 ]; then
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fail "at least fork, exec and exit events should be recorded"
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fi
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do_reset
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echo 0 > events/sched/enable
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yield
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count=`head -n 100 trace | grep -v ^# | awk '{ print $5 }' | sort -u | wc -l`
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if [ $count -ne 0 ]; then
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fail "any of scheduler events should not be recorded"
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fi
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exit 0
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