On Mon, 26 Feb 2024 11:18:16 +0800
Yuanhe Shu <xiangzao@xxxxxxxxxxxxxxxxx> wrote:
> 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.
Looks good to me.
Acked-by: Masami Hiramatsu (Google) <mhiramat@xxxxxxxxxx>
Hi Shuah, can you pick this as a fix?
Thank you,
>
> Fixes: 815b18ea66d6 ("ftracetest: Add basic event tracing test cases")
> Cc: stable@xxxxxxxxxxxxxxx
> Signed-off-by: Yuanhe Shu <xiangzao@xxxxxxxxxxxxxxxxx>
> ---
> .../selftests/ftrace/test.d/event/subsystem-enable.tc | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/tools/testing/selftests/ftrace/test.d/event/subsystem-enable.tc b/tools/testing/selftests/ftrace/test.d/event/subsystem-enable.tc
> index b1ede6249866..b7c8f29c09a9 100644
> --- a/tools/testing/selftests/ftrace/test.d/event/subsystem-enable.tc
> +++ b/tools/testing/selftests/ftrace/test.d/event/subsystem-enable.tc
> @@ -18,7 +18,7 @@ echo 'sched:*' > set_event
>
> yield
>
> -count=`cat trace | grep -v ^# | awk '{ print $5 }' | sort -u | wc -l`
> +count=`head -n 100 trace | grep -v ^# | awk '{ print $5 }' | sort -u | wc -l`
> if [ $count -lt 3 ]; then
> fail "at least fork, exec and exit events should be recorded"
> fi
> @@ -29,7 +29,7 @@ echo 1 > events/sched/enable
>
> yield
>
> -count=`cat trace | grep -v ^# | awk '{ print $5 }' | sort -u | wc -l`
> +count=`head -n 100 trace | grep -v ^# | awk '{ print $5 }' | sort -u | wc -l`
> if [ $count -lt 3 ]; then
> fail "at least fork, exec and exit events should be recorded"
> fi
> @@ -40,7 +40,7 @@ echo 0 > events/sched/enable
>
> yield
>
> -count=`cat trace | grep -v ^# | awk '{ print $5 }' | sort -u | wc -l`
> +count=`head -n 100 trace | grep -v ^# | awk '{ print $5 }' | sort -u | wc -l`
> if [ $count -ne 0 ]; then
> fail "any of scheduler events should not be recorded"
> fi
> --
> 2.39.3
>
>
--
Masami Hiramatsu (Google) <mhiramat@xxxxxxxxxx>
