The tool will be split into two versions:

<h3>Real-time</h3>
<ul>
<li>only data that can be efficiently retrieved via database indexes will be available
<li>there's still quite a bit of data available, but there are definitely limits
</ul>

<h3>Cached</h3>
<ul>
<li>available in the same script as above, but the user must click an optional checkbox
<li>the first time, the script will run much slower
<li>requests soon after that will run quickly, but the data will be delayed/historical
<li>technical details
    <ul>
    <li>the final calculated data will be stored in the u_interiot database, using a <a
    href="http://search.cpan.org/dist/Storable/Storable.pm">Storable</a> blob
    </ul>
</ul>