From: Yuanhe Shu Date: Mon, 26 Feb 2024 03:18:16 +0000 (+0800) Subject: selftests/ftrace: Limit length in subsystem-enable tests X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=1a4ea83a6e67f1415a1f17c1af5e9c814c882bb5;p=linux.git selftests/ftrace: Limit length in subsystem-enable tests 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: 815b18ea66d6 ("ftracetest: Add basic event tracing test cases") Cc: stable@vger.kernel.org Signed-off-by: Yuanhe Shu Acked-by: Masami Hiramatsu (Google) Acked-by: Steven Rostedt (Google) Signed-off-by: Shuah Khan --- 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 b1ede62498667..b7c8f29c09a97 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