you want
to utilize more than one CPU at the same time,
you should set a value bigger than one to <EM>concurrency</EM>.
Note that a big concurrency value let the operating system consume
more resource. Usually <EM>concurrency</EM> should be smaller than or
equal to the number of processors.
</DD>
</DL>
<BR>
<BR>

<P>

<A NAME="22995"></A>
<B>unix:thr-create</B> <EM>func arg-list &amp;optional (size 64*1024) </EM>[function]

<DL COMPACT>
<DT> 
<DD> 
creates a new thread with <EM>size</EM> words of Lisp stack