dpool' class='copiable-anchor'> &para;</a></span></dt>
<dd><p>This procedure constructs a thread pool object of native OS threads.
It takes four optional arguments.  The #:max-thread keyname specifies
the maximum number of threads which will run in the pool, and the
default value is 8.  The #:min-threads keyname specifies the minimum
number of persistent threads which will run in the pool and will not
be subject to an #:idle timeout, and the default value is 0.  It is an
error if #:min-threads is greater th