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<p class="MsoNormal"><span style="font-size:9.0pt; font-family:"Verdana","sans-serif"; color:blue">Hello,</span></p>
<p class="MsoNormal"><span style="font-size:9.0pt; font-family:"Verdana","sans-serif"; color:blue"> </span></p>
<p class="MsoNormal"><span style="font-size:9.0pt; font-family:"Verdana","sans-serif"; color:blue">I have also considered performances aspect in failover</span></p>
<p class="MsoNormal"><span style="font-size:9.0pt; font-family:"Verdana","sans-serif"; color:blue">Even on good servers, I was not able to go higher then 25 binding/sec (Discover-offer-request-ack for 100.000 clients)</span></p>
<p class="MsoNormal"><span style="font-size:9.0pt; font-family:"Verdana","sans-serif"; color:blue">I also observed that performance is going down as the leasefile grows</span></p>
<p class="MsoNormal"><span style="font-size:9.0pt; font-family:"Verdana","sans-serif"; color:blue"> </span></p>
<p class="MsoNormal"><span style="font-size:9.0pt; font-family:"Verdana","sans-serif"; color:blue">I tried to put leasefile in ramdisk or using some virtualization (running two instance of the process on same physical HW) but with few gain.</span></p>
<p class="MsoNormal"><span style="font-size:9.0pt; font-family:"Verdana","sans-serif"; color:blue"> </span></p>
<p class="MsoNormal"><span style="font-size:9.0pt; font-family:"Verdana","sans-serif"; color:blue">Any tips on how improving performances ?</span></p>
<p class="MsoNormal"><span style="font-size:9.0pt; font-family:"Verdana","sans-serif"; color:blue"> </span></p>
<p class="MsoNormal"><span style="font-size:9.0pt; font-family:"Verdana","sans-serif"; color:blue">regards</span></p>
<p class="MsoNormal"><span style="font-size:9.0pt; font-family:"Verdana","sans-serif"; color:blue">Yves</span></p>
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<p class="MsoNormal" style=""><span lang="FR-BE" style="font-size:9.0pt; font-family:"Georgia","serif"; color:navy">...................................</span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt; font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt; font-family:"Tahoma","sans-serif""> dhcp-users-bounces+yves.longree=belgacom.be@lists.isc.org [mailto:dhcp-users-bounces+yves.longree=belgacom.be@lists.isc.org]
<b>On Behalf Of </b>Smith Bill<br>
<b>Sent:</b> 22 February 2012 09:31<br>
<b>To:</b> dhcp-users@lists.isc.org<br>
<b>Subject:</b> DHCP Failover and Performance</span></p>
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<p class="MsoNormal"><span lang="EN-GB">Hi</span></p>
<p class="MsoNormal"><span lang="EN-GB"> </span></p>
<p class="MsoNormal"><span lang="EN-GB">I have recently set up a proof of concept system and configured DHCP for failover; one of my initial observations is that configuring failover seems to have a dramatic effect upon the time taken to issue an IP Address.</span></p>
<p class="MsoNormal"><span lang="EN-GB"> </span></p>
<p class="MsoNormal"><span lang="EN-GB">Does anyone have any performance data for ISC DHCP that they could share please?</span></p>
<p class="MsoNormal"><span lang="EN-GB"> </span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:10.0pt; font-family:"Arial","sans-serif"">Regards</span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:10.0pt; font-family:"Arial","sans-serif""> </span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:10.0pt; font-family:"Arial","sans-serif"">Bill Smith</span><span lang="EN-GB" style="font-size:12.0pt; font-family:"Times New Roman","serif""></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:10.0pt; font-family:"Arial","sans-serif"">Senior Solutions Architect</span></p>
<p class="MsoNormal" style="margin-right:3.75pt; margin-bottom:0cm; margin-left:3.75pt; margin-bottom:.0001pt">
<span lang="EN-GB" style="font-size:10.0pt; font-family:"Arial","sans-serif"">Architecture & Design H&NS North</span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:10.0pt; font-family:"Arial","sans-serif"">Fujitsu Services</span><span lang="EN-GB"></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:10.0pt; font-family:"Arial","sans-serif"">Tel: 07867 821165</span><span lang="EN-GB"></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:10.0pt; font-family:"Arial","sans-serif"">Email:bill.smith@uk.fujitsu.com</span><span lang="EN-GB"></span></p>
<p class="MsoNormal"><span lang="EN-GB"> </span></p>
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