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-rw-r--r--tools/testing/selftests/ftrace/test.d/tracer/wakeup.tc25
1 files changed, 25 insertions, 0 deletions
diff --git a/tools/testing/selftests/ftrace/test.d/tracer/wakeup.tc b/tools/testing/selftests/ftrace/test.d/tracer/wakeup.tc
new file mode 100644
index 000000000000..e3005fa785f0
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/tracer/wakeup.tc
@@ -0,0 +1,25 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL2.0
+# description: Test wakeup tracer
+
+if ! which chrt ; then
+ echo "chrt is not found. This test requires nice command."
+ exit_unresolved
+fi
+
+if ! grep -wq "wakeup" available_tracers ; then
+ echo "wakeup tracer is not supported"
+ exit_unsupported
+fi
+
+echo wakeup > current_tracer
+echo 1 > tracing_on
+echo 0 > tracing_max_latency
+
+: "Wakeup higher priority task"
+chrt -f 5 sleep 1
+
+echo 0 > tracing_on
+grep '+ \[[[:digit:]]*\]' trace
+grep '==> \[[[:digit:]]*\]' trace
+