.. index::
    single: FAQ; performance
    single: performance; troubleshooting

.. _faq-performance:

My application does not run as fast as I think it could
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There are a few runtime options you can tweak in order to get better results.

 * Compile in performance mode (do not use *--instrument* or *--debug*).
 * Adjust your program parameters (such as problem size, block size, etc.). Watch out for too fine grain tasks.
 * Disable thread sleep, or reduce/increase sleep time.
 * Reduce or increase the spin time. If you increase it, this might put more stress on the tasks queue(s).