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+=======
+Testing
+=======
+
+The ``pthread_mutex_perf`` is a simple performance test to validate if some
+specific kernel modification impacted the pthread_mutex_trylock().
+
+Basically the test will run a busy-wait 1000000 trying to acquire a mutex
+that is already locked. Then it will calculate the total time and the
+average time, repeating this cycle 10 times.
+
+This test is not intended to confirm that pthread mutex is working, for that
+it is better to use ostest. Its goal is to verify impact in the kernel that
+could be considered a regression.
+