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<pre class=code>
<B><FONT COLOR="#0000FF">signature</FONT></B> MLTON_RUSAGE =
   <B><FONT COLOR="#0000FF">sig</FONT></B>
      <B><FONT COLOR="#A020F0">type</FONT></B><B><FONT COLOR="#228B22"> t </FONT></B>=<B><FONT COLOR="#228B22"> {utime: Time.time, <I><FONT COLOR="#B22222">(* user time *)</FONT></I>
                stime: Time.time} <I><FONT COLOR="#B22222">(* system time *)</FONT></I>

      </FONT></B><B><FONT COLOR="#A020F0">val</FONT></B> measureGC: bool -&gt; unit         
      <B><FONT COLOR="#A020F0">val</FONT></B> rusage: unit -&gt; {children: t, gc: t, self: t}
   <B><FONT COLOR="#0000FF">end</FONT></B>
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 <tt>type&nbsp;t</tt>  <br>
corresponds to a subset of the C <tt>struct&nbsp;rusage</tt>. 
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 <tt>measureGC&nbsp;b</tt>  <br>
controls whether garbage collection time is separately measured  during program execution.  This affects the behavior of both  <tt>rusage</tt> and <tt>Timer.checkCPUTimes</tt>, both of which will return  gc times of zero with <tt>measureGC&nbsp;false</tt>.  Garbage collection time  is always measured when either <tt>gc-messages</tt> or <tt>gc-summary</tt>  is given as a <a href="RunTimeOptions">runtime system option</a>. 
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 <tt>rusage&nbsp;()</tt>  <br>
corresponds to the C <tt>getrusage</tt> function.  It returns the  resource usage of the exited children, the garbage collector, and the  process itself.  The <tt>self</tt> component includes the usage of the  <tt>gc</tt> component, regardless of whether <tt>measureGC</tt> is  <tt>true</tt> or <tt>false</tt>.  If <tt>rusage</tt> is used in a program,  either directly, or indirectly via the <tt>Timer</tt> structure, then  <tt>measureGC&nbsp;true</tt> is automatically called at the start of the  program (it can still be disable by user code later). 
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Last edited on 2007-08-23 03:45:11 by <span title="c-71-57-91-146.hsd1.il.comcast.net"><a href="MatthewFluet">MatthewFluet</a></span>.
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