profil14.htm

来自「ST20 Embedded Toolset R2.0.5用于开发基于ST20芯片」· HTM 代码 · 共 68 行

HTM
68 行
字号 
<html>

<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<meta name="GENERATOR" content="Quadralay WebWorks Publisher Professional Edition 6.0.5">
<meta name="TEMPLATEBASE" content="book_html">
<meta name="LASTUPDATED" content="12/04/03 16:05:07">
<title>7.6 Idle profiling</title>

<STYLE TYPE="text/css">
<!--
	span.Signal { text-transform: uppercase; font-family: Verdana }
-->
</STYLE>

</head>

<body link="#3366CC" vlink="#9999CC" text="#000000" alink="#0000CC" bgcolor="#FFFFFF"
background="images/backgrnd.gif">

<p><img src="images/stlogo.gif" width="106" height="83" align="left"
alt="logo here!"> </p>

<table width="331" border="0" align="right" cellpadding="0" cellspacing="0">
  <tr>
    <td><a href="a_refman.htm"><img src="images/navtoc.gif" width="84" height="23"
    border="0" alt="TOC"> </a></td>
    <td><a href="profil13.htm"><img src="images/navprev.gif" width="80" height="23"
    border="0" alt="PREV"> </a></td>
    <td><a href="profil15.htm"><img src="images/navnext.gif" width="83" height="23"
    border="0" alt="NEXT"> </a></td>
    <td><a href="a_refmaa.htm"><img src="images/navidx.gif" width="84" height="23"
    border="0" alt="INDEX"> </a></td>
  </tr>
</table>

<p><br clear="all">
</p>

<hr align="left">

<blockquote>
<h2>
  <a name="1204683"> </a><font color="#003366"  face="Verdana, Arial, Helvetica, sans-serif">7.6 	 Idle profiling</font>
</h2><hr>


<p>
  <a name="1204684"> </a><font size=2  face="Verdana, Arial, Helvetica, sans-serif">Idle profiling measures the time the CPU spends idle, that is, the time not executing code. This is performed by recording the times when the processor becomes idle and the times when it becomes active again. The times generated are measured in microseconds.</font>
</p>


<p>
  <a name="1204686"> </a><font size=2  face="Verdana, Arial, Helvetica, sans-serif">The diagnostic controller on a hardware target can detect when the processor becomes idle and when it becomes active again. The simulator can provide similar signals.</font>
</p>


<p>
  <a name="1204687"> </a><font size=2  face="Verdana, Arial, Helvetica, sans-serif">Idle profiling may be selected by entering a <font size=2 face=Courier><strong>profile</strong></font> command with the <font  face="Verdana, Arial, Helvetica, sans-serif"><b>prof i</b></font> option. The time data can be extracted using the <font size=2 face=Courier><strong>profile</strong></font> command with the <font  face="Verdana, Arial, Helvetica, sans-serif"><b>idle</b></font> option. The <font size=2 face=Courier><strong>profile</strong></font> command options <font  face="Verdana, Arial, Helvetica, sans-serif"><b>isize</b></font> and <font  face="Verdana, Arial, Helvetica, sans-serif"><b>iwrap</b></font> enable the size of the idle profiling buffer to be set and to specify whether, when the buffer is full, to overwrite existing data or discard new data.</font>
</p>


<p>
  <a name="1204688"> </a><font size=2  face="Verdana, Arial, Helvetica, sans-serif">For example, the following sequence of commands idle profiles the application in <font size=2 face=Courier><strong>hello.lku</strong></font> on the target called <font size=2 face=Courier><strong>st20</strong></font>:</font>
</p>


<a name="1204689"> </a><font size=2 face=Courier><strong>&gt; connect st20

profil14.htm - 源码说明

本页面展示了「ST20 Embedded Toolset R2.0.5用于开发基于ST20芯片机顶盒软件的开发平台,2.0.5版本,国内找不到的.在国外论坛上花了N天才找到!」中的 profil14.htm 源码文件，采用 HTM 编程语言编写，共 68 行代码。您可以在线阅读完整代码内容，也可以返回资源详情页下载完整源码包进行本地学习和开发。

虫虫下载站收录了大量与Embedded相关的技术资源，包括源代码、技术文档、电路图等，是电子工程师和嵌入式开发者的专业学习平台。

⌨️ 快捷键说明

复制代码Ctrl + C
搜索代码Ctrl + F
全屏模式F11
增大字号Ctrl + =
减小字号Ctrl + -
显示快捷键?