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.