diff --git a/nptl/TODO-testing b/nptl/TODO-testing
new file mode 100644
index 0000000000..e076e5624f
--- /dev/null
+++ b/nptl/TODO-testing
@@ -0,0 +1,20 @@
+pthread_attr_setguardsize
+
+  test effectiveness
+
+pthread_attr_[sg]etschedparam
+
+  what to test?
+
+pthread_attr_[sg]etstack
+
+  some more tests needed
+
+pthread_getcpuclockid
+
+  check that value is reset -> rt subdir
+
+pthread_getschedparam
+pthread_setschedparam
+
+  what to test?