From: Luca Toscano <elukey@apache.org>
Date: Tue, 5 Apr 2016 09:47:07 +0000 (+0000)
Subject: Documentation rebuild
X-Git-Tag: 2.5.0-alpha~1779
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=ad0eff004e3272d295c12c2776b40c26f7732350;p=thirdparty%2Fapache%2Fhttpd.git

Documentation rebuild

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1737810 13f79535-47bb-0310-9956-ffa450edef68
---

diff --git a/docs/manual/mod/mod_include.html.en b/docs/manual/mod/mod_include.html.en
index 990502d48cf..cf64956106c 100644
--- a/docs/manual/mod/mod_include.html.en
+++ b/docs/manual/mod/mod_include.html.en
@@ -137,6 +137,8 @@ AddOutputFilter INCLUDES .shtml</pre>
 
     <table class="bordered">
     <tr><th>Element</th><th>Description</th></tr>
+    <tr><td><code><a href="#element.comment">comment</a></code></td>
+        <td>SSI comment</td></tr>
     <tr><td><code><a href="#element.config">config</a></code></td>
         <td>configure output formats</td></tr>
     <tr><td><code><a href="#element.echo">echo</a></code></td>
@@ -160,6 +162,17 @@ AddOutputFilter INCLUDES .shtml</pre>
     <code class="module"><a href="../mod/mod_cgi.html">mod_cgi</a></code>, and will only be available if this
     module is loaded.</p>
 
+    <h3><a name="element.comment" id="element.comment">The comment Element</a></h3>
+      <p>This command doesn't output anything. Its only use is to
+      add comments within a file. These comments are not printed.</p>
+
+      <p>This syntax is available in version 2.5 and later.</p>
+
+      <div class="example"><p><code>
+      &lt;!--#comment Blah Blah Blah --&gt;
+      </code></p></div>
+     
+
     <h3><a name="element.config" id="element.config">The config Element</a></h3>
       <p>This command controls various aspects of the parsing. The
       valid attributes are:</p>
diff --git a/docs/manual/mod/mpm_common.html.en b/docs/manual/mod/mpm_common.html.en
index 498404983f5..e685b5db2fa 100644
--- a/docs/manual/mod/mpm_common.html.en
+++ b/docs/manual/mod/mpm_common.html.en
@@ -274,6 +274,13 @@ in *BSDs.</td></tr>
     then make each child handle a single bucket (with round-robin distribution
     of the buckets at children creation time).</p>
 
+    <div class="note"><h3>Meaning of "online" CPU core</h3>
+    <p>On Linux (and also BSD) a CPU core can be turned on/off if 
+    <a href="https://www.kernel.org/doc/Documentation/cpu-hotplug.txt">Hotplug</a> 
+    is configured, therefore <code class="directive">ListenCoresBucketsRatio</code> needs to
+    take this parameter into account while calculating the number of buckets to create.</p>
+    </div>
+
     <p><code class="directive">ListenCoresBucketsRatio</code> can improve the
     scalability when accepting new connections is/becomes the bottleneck.
     On systems with a large number of CPU cores, enabling this feature has
@@ -283,7 +290,10 @@ in *BSDs.</td></tr>
     <p>There must be at least twice the number of CPU cores than the
     configured <var>ratio</var> for this to be active. The recommended
     <var>ratio</var> is <code>8</code>, hence at least <code>16</code>
-    cores should be available at runtime when this value is used.</p>
+    cores should be available at runtime when this value is used.
+    The right <var>ratio</var> to obtain maximum performance needs to be calculated
+    for each target system, testing multiple values and observing the variations in your 
+    key performance metrics.</p>
 
 </div>
 <div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
@@ -433,7 +443,9 @@ spikes</td></tr>
     <code>MinSpareThreads 75</code> and deal with idle threads on a server-wide
     basis. If there aren't enough idle threads in the server then child
     processes are created until the number of idle threads is greater
-    than <var>number</var>.</p>
+    than <var>number</var>. Please also note that additional processes/threads
+    might be created if <code class="directive"><a href="#listencoresbucketsratio">ListenCoresBucketsRatio</a></code> 
+    is enabled.</p>
 
     <p><code class="module"><a href="../mod/mpm_netware.html">mpm_netware</a></code> uses a default of
     <code>MinSpareThreads 10</code> and, since it is a single-process