What does -XX:+UseGetTimeOfDay as a parameter do?
<p>Whilst working on a Java application I've come across the <code>-XX:+UseGetTimeOfDay</code> parameter on a java command, I can't find much information about it.</p>

<p>Firstly, what does the -XX mean, and what would the UseGetTimeOfDay provide? I haven't seen these before and I'm wondering what they do, could it be something specific to my application or are these standard Java parameters?</p>
