+ <para>The <literal>SPARKS</literal> statistic refers to the
+ use of <literal>Control.Parallel.par</literal> and related
+ functionality in the program. Each spark represents a call
+ to <literal>par</literal>; a spark is "converted" when it is
+ executed in parallel; and a spark is "pruned" when it is
+ found to be already evaluated and is discarded from the pool
+ by the garbage collector. Any remaining sparks are
+ discarded at the end of execution, so "converted" plus
+ "pruned" does not necessarily add up to the total.</para>
+ </listitem>
+ <listitem>