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-rw-r--r--tools/testing/selftests/ftrace/test.d/filter/event-filter-function.tc4
1 files changed, 4 insertions, 0 deletions
diff --git a/tools/testing/selftests/ftrace/test.d/filter/event-filter-function.tc b/tools/testing/selftests/ftrace/test.d/filter/event-filter-function.tc
index c62165fabd0c..cfa16aa1f39a 100644
--- a/tools/testing/selftests/ftrace/test.d/filter/event-filter-function.tc
+++ b/tools/testing/selftests/ftrace/test.d/filter/event-filter-function.tc
@@ -20,6 +20,10 @@ sample_events() {
echo 0 > tracing_on
echo 0 > events/enable
+# Clear functions caused by page cache; run sample_events twice
+sample_events
+sample_events
+
echo "Get the most frequently calling function"
echo > trace
sample_events