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<TITLE>Configuring TAO's Components</TITLE>
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<H1 ALIGN=CENTER>Configuring TAO's Components</H1>
<H2>Overview</H2>
<blockquote>
<p>As described in the <a href="Options.html">options</a>
documentation, various components in TAO can be "tuned" by specifying
options for those components. Here we present some examples of how to
combine these options to achieve certain effects on ORB operations.</P>
</blockquote>
<H2>Where Are Options Specified?</H2>
<blockquote>
<p>TAO configures itself using the ACE Service Configurator
framework. Thus, options are specified in the familiar
<code>svc.conf</code> file (if you want to use a different file
name, use the <a
href="Options.html#svcfonf"><code>-ORBsvcconf</code></a>
option</p>
</blockquote>
<H2>Roadmap</H2>
<blockquote>
<P>Details for the following configurations are provided.</P>
<UL>
<LI><A HREF="#reactive">Single-threaded, reactive model.</A>
<LI><A HREF="#tpc">Multiple threads, thread-per-connection model.</A>
<LI><A HREF="#multiorb">Multiple threads, orb-per-thread model.</A>
<LI><A HREF="#multiorb-tpc">Multiple threads, orb-per-thread, thread-per-connection.</A>
</UL>
<p>Each configuration has the following information:</p>
<p>
<table border=2 width="100%" cellspacing="2" cellpadding="0">
<tr>
<tr>
<th>Typical Use</th>
<td>A brief description of the scenario and its typical use.</td>
</tr>
<tr>
<th>Number Threads</th>
<td>The number of threads used by ORB-related activities.</td>
</tr>
<tr>
<th>Thread Creator</th>
<td>Identifies the creator of the threads discussed above.</td>
</tr>
<tr>
<th>Resource Location</th>
<td>Where information on various resources is stored.</td>
</tr>
<tr>
<th>Thread task</th>
<td>Describes what task is undertaken for each thread.</td>
</tr>
<tr>
<th>Options</th>
<td>Specifies the options for each service in order to utilize this configuration.</td>
</tr>
</table>
</p>
</blockquote>
<H2>Configurations</H2>
<blockquote>
<H3>Single-threaded, reactive model.<A NAME="reactive"></A></H3>
<p>
<table border=2 width="100%" cellspacing="2" cellpadding="0">
<th>Typical Use</th>
<td>
This is definitely the most common use of an ORB in a
server situation, where there is a single thread handling
requests from multiple clients.
</td>
</tr>
<tr>
<th>Number Threads</th>
<td>1</td>
</tr>
<tr>
<th>Thread Creator</th>
<td>Operating System or whoever creates the main thread in a process.</td>
</tr>
<tr>
<th>Resource Location</th>
<td>Resources are stored process-wide.</td>
</tr>
<tr>
<th>Thread task</th>
<td>The single thread processes all connection requests and CORBA messages.</td>
</tr>
<tr>
<th>Options</th>
<td>
<code>TAO_Resource_Manager</code>: <code>-ORBresources global</code><br>
<code>TAO_Server_Strategy_Factory</code>: <code>-ORBconcurrency reactive</code>
</td>
</tr>
</table>
</p>
<H3>Multiple threads, thread-per-connection model.<A NAME="tpc"></A></H3>
<p>
<table border=2 width="100%" cellspacing="2" cellpadding="0">
<tr>
<th>Typical Use</th>
<td>A brief description of the scenario and its typical use.</td>
</tr>
<tr>
<th>Number Threads</th>
<td>The number of threads used by ORB-related activities.</td>
</tr>
<tr>
<th>Thread Creator</th>
<td>Identifies the creator of the threads discussed above.</td>
</tr>
<tr>
<th>Resource Location</th>
<td>Where information on various resources is stored.</td>
</tr>
<tr>
<th>Thread task</th>
<td>Describes what task is undertaken for each thread.</td>
</tr>
</table>
</p>
<H3>Multiple threads, orb-per-thread model.<A NAME="multiorb"></A></H3>
<p>
<table border=2 width="100%" cellspacing="2" cellpadding="0">
<tr>
<th>Typical Use</th>
<td>A brief description of the scenario and its typical use.</td>
</tr>
<tr>
<th>Number Threads</th>
<td>The number of threads used by ORB-related activities.</td>
</tr>
<tr>
<th>Thread Creator</th>
<td>Identifies the creator of the threads discussed above.</td>
</tr>
<tr>
<th>Resource Location</th>
<td>Where information on various resources is stored.</td>
</tr>
<tr>
<th>Thread task</th>
<td>Describes what task is undertaken for each thread.</td>
</tr>
</table>
</p>
<H3>Multiple threads, orb-per-thread, thread-per-connection.<A NAME="multiorb-tpc"></A></H3>
<p>
<table border=2 width="100%" cellspacing="2" cellpadding="0">
<tr>
<th>Typical Use</th>
<td>A brief description of the scenario and its typical use.</td>
</tr>
<tr>
<th>Number Threads</th>
<td>The number of threads used by ORB-related activities.</td>
</tr>
<tr>
<th>Thread Creator</th>
<td>Identifies the creator of the threads discussed above.</td>
</tr>
<tr>
<th>Resource Location</th>
<td>Where information on various resources is stored.</td>
</tr>
<tr>
<th>Thread task</th>
<td>Describes what task is undertaken for each thread.</td>
</tr>
</table>
</p>
</blockquote>
</blockquote>
<P><HR><P>
Back to the TAO <A HREF="components.html">components documentation</A>.
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