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9<title>GXClearMemMetric</title>
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13
14<h1 align="left">GXClearMemMetric</h1>
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16
17<h2>C Specification</h2>
18
19<dl>
20<dd><PRE><CODE>#include &lt;revolution/gx.h&gt;</CODE></PRE>
21  </dd>
22<dd><pre><CODE>void GXClearMemMetric( void  );</CODE></pre>
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24</dl>
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26<h2>Arguments</h2>
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28<p>None</p>
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30<h2>Return Values</h2>
31
32<p>None</p>
33<H2>Description</H2>
34<P>The Graphics Processor (GP) can count many internal events that give detailed information on performance.&nbsp;This function clears the memory request counters. The counters can be read by calling <a href="GXReadMemMetric.html"><code>GXReadMemMetric</code></a>.  Since the counters are cleared by writing CPU-accessible registers, this function should <strong>not</strong> be used in a display list.</P>
35<P><code><font size="3">u32 cp_req, tc_req, cpu_rd_req, cpu_wr_req, dsp_req, io_req, vi_req, pe_req;<br> u32 rf_req, fi_req;<br> <br> GXReadClearMetric();<br> <br> // Draw Object(s)</font></code></P>
36<P><code><font size="3">// wait until object drawn<br> GXSetDrawSync(0xbeef);<br> while (0xbeef != GXReadDrawSync())<br> &nbsp;&nbsp;&nbsp; ;<br> <br> metric = GXReadMemMetric(&amp;cp_req,<br> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &amp;tc_req,<br> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &amp;cpu_rd_req,<br> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &amp;cpu_wr_req,<br> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &amp;dsp_req,<br> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &amp;io_req,<br> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &amp;vi_req,<br> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &amp;pe_req,<br> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &amp;rf_req,<br> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &amp;fi_req );&nbsp;&nbsp; // returns request counter<br> <br> OSReport(&quot;Number command processor requests:&nbsp; %d\n&quot;, cp_req);</font></code></P>
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41<h2>See Also</h2>
42
43<p><a href="GXReadPixMetric.html">GXReadPixMetric</a><br> <a href="GXClearPixMetric.html">GXClearPixMetric</a><br> <a href="GXSetVCacheMetric.html">GXSetVCacheMetric</a><br> <a href="GXReadVCacheMetric.html">GXReadVCacheMetric</a><br> <a href="GXClearVCacheMetric.html">GXClearVCacheMetric</a><br> <a href="GXSetGPMetric.html">GXSetGPMetric</a><br> <a href="GXReadGPMetric.html">GXReadGPMetric</a><br> <a href="GXClearGPMetric.html">GXClearGPMetric</a></p>
44<H2>Revision History</H2>
45<P>03/01/2006 Initial version</P>