<p><br>
I did digs to both names from my work DNS infrastructure. The response was 58ms to resolve the WWW entry and 44ms for the non WWW entry. Would not appear to be a resolution related slow down. <br>
-Ben Croswell </p>
<div class="gmail_quote">On Nov 26, 2012 1:25 PM, "Lightner, Jeff" <<a href="mailto:JLightner@water.com">JLightner@water.com</a>> wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div lang="EN-US" link="blue" vlink="purple">
<p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">For question 1:<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">“Loading” is a function of the web site not DNS. Your first question could have to do what the default site is in your web configuration and what kind of rewrite
rules are getting you to the other.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">If it were me I’d probably do some timed “host” or “dig” commands for the two records to verify name resolution itself wasn’t a problem.
<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">I guess it MIGHT be a minutely slower to resolve www if it is a CNAME to the other as opposed to both being A records. However, since this is a fairly common
practice I doubt it is likely to be of major importance in overall timing.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p>
<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""> bind-users-bounces+jlightner=<a href="mailto:water.com@lists.isc.org" target="_blank">water.com@lists.isc.org</a> [mailto:<a href="mailto:bind-users-bounces%2Bjlightner" target="_blank">bind-users-bounces+jlightner</a>=<a href="mailto:water.com@lists.isc.org" target="_blank">water.com@lists.isc.org</a>]
<b>On Behalf Of </b>Adamiec, Lawrence<br>
<b>Sent:</b> Monday, November 26, 2012 1:13 PM<br>
<b>To:</b> <a href="mailto:bind-users@lists.isc.org" target="_blank">bind-users@lists.isc.org</a><br>
<b>Subject:</b> Re: Performance tuning<u></u><u></u></span></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">To the best of my knowledge, there are no problems with our DNS. We only host 25 domains.<u></u><u></u></p>
<div>
<p class="MsoNormal"><u></u> <u></u></p>
</div>
<div>
<p class="MsoNormal">The report must also address these two specific questions:<u></u><u></u></p>
</div>
<div>
<p class="MsoNormal"><u></u> <u></u></p>
</div>
<div>
<ol start="1" type="1">
<li class="MsoNormal">
Why does <a href="http://www.kentlaw.iit.edu" target="_blank">www.kentlaw.iit.edu</a> load quicker than
<a href="http://kentlaw.iit.edu" target="_blank">kentlaw.iit.edu</a> in any browser?<u></u><u></u></li><li class="MsoNormal">
What happens if we remove the forwarders option from named.conf?<u></u><u></u></li></ol>
</div>
<div>
<p class="MsoNormal">I can't duplicate the issue in Q1 and I'm trying to determine a way of testing Q2.<u></u><u></u></p>
</div>
<div>
<p class="MsoNormal"><u></u> <u></u></p>
</div>
<div>
<p class="MsoNormal">Larry<u></u><u></u></p>
</div>
<div>
<p class="MsoNormal" style="margin-bottom:12.0pt"><u></u> <u></u></p>
<div>
<p class="MsoNormal">On Mon, Nov 26, 2012 at 11:39 AM, Doug Barton <<a href="mailto:dougb@dougbarton.us" target="_blank">dougb@dougbarton.us</a>> wrote:<u></u><u></u></p>
<p class="MsoNormal" style="margin-bottom:12.0pt">What a delightfully vague requirement. :)<br>
<br>
I would push back a bit on exactly what problems are attempted to be<br>
solved here. The BIND defaults are about as efficient as they can be,<br>
especially so in later versions.<br>
<br>
Doug<br>
<br>
<br>
On 11/26/2012 11:01 AM, Adamiec, Lawrence wrote:<br>
> Hi,<br>
><br>
> I have been tasked with authoring a DNS report "to achieve optimal<br>
> performance." The report must include:<br>
><br>
> CPU usage<br>
> memory usage<br>
> bandwidth usage<br>
> throughput<br>
> latency<br>
><br>
> I have found some information regarding the number of queries processed<br>
> per minute but nothing of value for the above areas.<br>
><br>
> Is there some documentation that discusses the above areas?<br>
><br>
> We are running BIND 9.6-ESV-R5-P1, Solaris 10 on a SPARC server. My<br>
> report will include the fact we must upgrade from BIND 9.6-ESV-R5-P1<br>
><br>
> Thank you in advance.<br>
><br>
> Larry<br>
><br>
> Lawrence Adamiec<br>
> UNIX Mgr<br>
> IIT Chicago-Kent College of Law<u></u><u></u></p>
</div>
<p class="MsoNormal"><u></u> <u></u></p>
</div>
</div>
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