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<h1><a name="kanchor52"></a>Prefetch Object Count</h1>In a client server scenario, network latency is one of the biggest performance concerns. Instead of making lots of little requests, it's more to do bulk operations. A good way is to prefetch objects which are maybe required later.<p>The prefect count configures how many objects of a query-result are loaded from the server. Prefetched objects avoid additional roundtrip's to the server for getting the data. However more data needs to be sent to the clients.</p><div class="codesnippet" MadCap:conditions="Primary.c#"><pre class="prettyprint" xml:space="preserve">IClientConfiguration configuration = Db4oClientServer.NewClientConfiguration();
configuration.PrefetchObjectCount = 500;</pre><div class="codesnippet-meta">ClientConfigurationExamples.cs: Configure the prefetch object count
<div class="codedownload"><a href="../../CodeExamples/configuration/client/Example-configuration-client-csharp.zip" class="codedownload" MadCap:conditions="Primary.Online">Download Code</a></div><div class="codedownload copylink-marker" MadCap:conditions="Primary.Online"><a href="#copy">Copy Code</a></div></div></div><div class="codesnippet" MadCap:conditions="Primary.VB.NET"><pre class="prettyprint lang-vb" MadCap:conditions="Primary.Online" xml:space="preserve">Dim configuration As IClientConfiguration = Db4oClientServer.NewClientConfiguration()
configuration.PrefetchObjectCount = 500</pre><div class="codesnippet-meta">ClientConfigurationExamples.vb: Configure the prefetch object count
<div class="codedownload"><a href="../../CodeExamples/configuration/client/Example-configuration-client-vb.zip" class="codedownload" MadCap:conditions="Primary.Online">Download Code</a></div><div class="codedownload copylink-marker" MadCap:conditions="Primary.Online"><a href="#copy">Copy Code</a></div></div></div><p> The <a href="prefetch_depth.htm">prefetch depth</a> and the <a href="#">prefetch object count</a> are closely related to each other. The prefetch object count configures how many objects are prefetched from a query-result. The prefetch-depth configures how deep the object-graph is fetched.</p><p><img src="prefetch-visualisation.png" /></p><script type="text/javascript" src="../../SkinSupport/MadCapBodyEnd.js"></script></body>
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