P>
Recent versions of the collector support several facilites to enhance
the processor-scalability and thread performance of the collector.
These are discussed in more detail <A HREF="scale.html">here</a>.
We briefly outline the data approach to thread-local allocation in the
next section.
<H2>Thread-local allocation</h2>
If thread-local allocation is enabled, the collector keeps separate
arrays of free lists for each thread.  Thread-local allocation
is currently only supported on a few platforms.
<P>
The f