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<div class="moz-cite-prefix">On 26/11/12 19:23, Lightner, Jeff
wrote:<br>
</div>
<blockquote
cite="mid:040B89C8B1E1D945AE2700C511A039E92597D5@ATMEXDB04.dsw.net"
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<div class="WordSection1">
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">For
question 1:<o:p></o:p></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.<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></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.
<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></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.</span></p>
</div>
</blockquote>
I checked with firebug DNS is in ms and loading the first file was
1.53s and 3.07s in the two cases(the file is 9.7kB), so external
access does not depend on fast DNS, you need to focus on the web
server.<br>
<blockquote
cite="mid:040B89C8B1E1D945AE2700C511A039E92597D5@ATMEXDB04.dsw.net"
type="cite">
<div class="WordSection1">
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></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"">
<a class="moz-txt-link-abbreviated" href="mailto:bind-users-bounces+jlightner=water.com@lists.isc.org">bind-users-bounces+jlightner=water.com@lists.isc.org</a>
[<a class="moz-txt-link-freetext" href="mailto:bind-users-bounces+jlightner=water.com@lists.isc.org">mailto:bind-users-bounces+jlightner=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 class="moz-txt-link-abbreviated" href="mailto:bind-users@lists.isc.org">bind-users@lists.isc.org</a><br>
<b>Subject:</b> Re: Performance tuning<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">To the best of my knowledge, there are no
problems with our DNS. We only host 25 domains.<o:p></o:p></p>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">The report must also address these two
specific questions:<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<ol start="1" type="1">
<li class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l0
level1 lfo1">
Why does <a moz-do-not-send="true"
href="http://www.kentlaw.iit.edu">www.kentlaw.iit.edu</a>
load quicker than
<a moz-do-not-send="true" href="http://kentlaw.iit.edu">kentlaw.iit.edu</a>
in any browser?<o:p></o:p></li>
<li class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l0
level1 lfo1">
What happens if we remove the forwarders option from
named.conf?<o:p></o:p></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.<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">Larry<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal" style="margin-bottom:12.0pt"><o:p> </o:p></p>
<div>
<p class="MsoNormal">On Mon, Nov 26, 2012 at 11:39 AM, Doug
Barton <<a moz-do-not-send="true"
href="mailto:dougb@dougbarton.us" target="_blank">dougb@dougbarton.us</a>>
wrote:<o:p></o:p></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<o:p></o:p></p>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
</div>
<p class="3612670b-8da0-4d42-925a-3a891dad0e5d"> </p>
<p class="3612670b-8da0-4d42-925a-3a891dad0e5d"> </p>
<p class="3612670b-8da0-4d42-925a-3a891dad0e5d"> </p>
<p class="3612670b-8da0-4d42-925a-3a891dad0e5d"> </p>
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<p class="3612670b-8da0-4d42-925a-3a891dad0e5d"> </p>
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<pre class="moz-signature" cols="72">--
Best regards
Sten Carlsen
No improvements come from shouting:
"MALE BOVINE MANURE!!!"
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