Commit d33088b9 authored by Luca Toscano's avatar Luca Toscano
Browse files

Documentation rebuild 

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1748952 13f79535-47bb-0310-9956-ffa450edef68
parent 67e99e76

docs/manual/mod/mpm_common.html.en

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@@ -279,6 +279,13 @@ 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
@@ -288,7 +295,10 @@ 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>

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