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<title>7.4.2 Running profiling </title>
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<a name="1204525"> </a><font color="#003366" face="Verdana, Arial, Helvetica, sans-serif">7.4.2 Running profiling</font>
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<a name="1204526"> </a><font size=2 face="Verdana, Arial, Helvetica, sans-serif">After building, the application may be run using <strong>st20run</strong> with an option on the command line (batch mode), or interactively using the command language or GUI. When using interactive mode, profiling may be turned on or off as required at different points during the run. The run generates profiling data, which is stored in memory on the host. After the application run has been completed, the data is extracted and accumulated or written as output. See the <em>ST20 Embedded Toolset User Manual</em>, chapter <em>st20run tool </em>for more information about <strong>st20run</strong>, and the <em>ST Visual Develop </em>chapters for a description of the graphical interface.</font>
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<a name="1204533"> </a><font size=2 face="Verdana, Arial, Helvetica, sans-serif">Profiling is controlled by the <font size=2 face=Courier><strong>profile</strong></font> command; see <a href="part4.htm#1204411"><font color="#0000ff" face="Verdana, Arial, Helvetica, sans-serif"><i>Part 4 Command language</i></font></a> of this manual for details of the command language and the <font size=2 face=Courier><strong>profile</strong></font> command. From the graphical interface, profiling is controlled by selecting the <strong>Trace and Profile</strong> window.</font>
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<a name="1204534"> </a><font size=2 face="Verdana, Arial, Helvetica, sans-serif">The syntax of the <font size=2 face=Courier><strong>profile</strong></font> command is:</font>
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<a name="1204535"> </a><font size=2 face=Courier><strong>profile [<font size=2 face=Courier><strong><em>options</em></strong></font>]<br></strong></font>
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<a name="1204536"> </a><font size=2 face="Verdana, Arial, Helvetica, sans-serif">The <font size=2 face=Courier><strong>profile</strong></font> command without any options extracts and displays the profiling data. The options to the <font size=2 face=Courier><strong>profile</strong></font> command are listed in <a href="profile9.htm#1204588"><font color="#0000ff" face="Verdana, Arial, Helvetica, sans-serif"><i>Table⌨️ 快捷键说明
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