<listitem>
<para> Run your program with one of the profiling options, eg.
<literal>+RTS -p -RTS</literal>. This generates a file of
- profiling information.</para>
+ profiling information. Note that multi-processor execution
+ (e.g. <literal>+RTS -N2</literal>) is not supported while
+ profiling.</para>
<indexterm><primary><option>-p</option></primary><secondary>RTS
option</secondary></indexterm>
</listitem>