Use md5sum so that it takes less time of checking
trace logs update. Since busybox tail/cat takes too
long time to read the trace log, this uses md5sum
to check whether trace log is updated or not.
Signed-off-by: Masami Hiramatsu <mhira...@kernel.org>
---
.../test.d/ftrace/func_traceonoff_triggers.tc | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git
a/tools/testing/selftests/ftrace/test.d/ftrace/func_traceonoff_triggers.tc
b/tools/testing/selftests/ftrace/test.d/ftrace/func_traceonoff_triggers.tc
index 9cf3852..7a9ab4f 100644
--- a/tools/testing/selftests/ftrace/test.d/ftrace/func_traceonoff_triggers.tc
+++ b/tools/testing/selftests/ftrace/test.d/ftrace/func_traceonoff_triggers.tc
@@ -103,11 +103,11 @@ if [ $on != "0" ]; then
fail "Tracing is not off"
fi
-line1=`cat trace | tail -1`
+csum1=`md5sum trace`
sleep $SLEEP_TIME
-line2=`cat trace | tail -1`
+csum2=`md5sum trace`
-if [ "$line1" != "$line2" ]; then
+if [ "$csum1" != "$csum2" ]; then
fail "Tracing file is still changing"
fi
