No extreme performance issues beyond <div>apparently daily load variations in response</div><div>and speed.</div><div><br></div><div>Re no dedicated connection, by that I </div><div>mean that I don't to the same extent</div>
<div>share a cable with other users at the</div><div>local level. i.e., I've heard two different</div><div>figures for how Comcast allocates capacity.</div><div>One says 40 Mbps per 300 users, and another</div><div>says 50 Mbps for 400 users. With DSL, </div>
<div>one supposedly gets to the CO over one's</div><div>own connection, like the old phone approach.</div><div>What happens in the CO is the question.</div><div>Perhaps there's just congestion at that </div><div>point. That's really the question - whether</div>
<div>there is the same concept of loading with</div><div>the DSL. If many people use their cable</div><div>modems on the same cable, the capacity</div><div>can be used up. Same true with DSL?</div><div><br></div><div>This is different from server congestion,</div>
<div>and I presume there is little backbone </div><div>congestion.</div><div><br></div><div>Anyway, some of this can be answered</div><div>by using something like <a href="http://speedtest.net">speedtest.net</a>.</div><div>
I see big variations throughout the day.</div><div>My questions is whether people with </div><div>high speed DSL connections see similar</div><div>variability. I can upload and download</div><div>big files to my web hosting site, and </div>
<div>simply measure the time. That's a direct</div><div>measure of rate. Same for downloading,</div><div>say, a new distribution of Ubuntu.</div><div><br></div><div>At bottom, small variation, for any mean</div><div>
speed, is good - for me. That way I know</div><div>whether I need more, and what to plan on.</div><div><br></div><div> -- Bob</div><div><br></div><div><div><br><div class="gmail_quote">On Tue, May 17, 2011 at 10:18 PM, Adam Tauno Williams <span dir="ltr"><<a href="mailto:awilliam@whitemice.org">awilliam@whitemice.org</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"><div class="im">On Tue, 2011-05-17 at 21:06 -0400, Bob Kline wrote:<br>
> A few people in the group have AT&T's 24 Mbps<br>
> U-verse DSL service. I'm interested in knowing<br>
> how the service behaves.<br>
<br>
</div>I'm a very happy U-verse customer; with a much lower plan than 24Mbps.<br>
<div class="im"><br>
> e.g., Comcast's services clearly varies with load<br>
> throughout the day, and one sees factors of as<br>
> much as 4 in the bite rate in tests on <a href="http://speedtest.net" target="_blank">speedtest.net</a><br>
> ( Just for reference, Comcast sponsors the Chicago<br>
> test point, and always shows the highest rates... )<br>
<br>
</div>Speaking as someone who has access to an OptE-man Fiber connection...<br>
these speed tests are meaningless and pointless.<br>
<br>
Do you have performance issues? That is the only relevant question.<br>
<br>
There is mean throughput, peak throughput, and latency. Any meaningful<br>
test will benchmark all three, will need to run for hours, and you'll<br>
need to simulate a real-world mix of network traffic.<br>
<div class="im"><br>
> So, does AT&T's service act more like a dedicated<br>
> connection,<br>
<br>
</div>There is no such thing as a 'dedicated connection' on the Internet.<br>
Nothing will act like one [from someone who has many point-to-point<br>
circuits as well as a private MPLS cloud].<br>
<br>
I see no evidence of last-mile contention on my U-verse circuit.<br>
<div class="im"><br>
> like one more less fantasizes a DSL<br>
> connection could have, since you have a "wire"<br>
> right back to the CO? i.e., does anyone know<br>
> whether that is the case? Many things come in<br>
> to play here, including congestion on the bigger<br>
> "wires," but I'm pretty much assuming that test<br>
> server congestion is not an issue.<br>
<br>
</div>A big assumption, even after one assumes their test means anything.<br>
<div class="im"><br>
> Of course service congestion is a time of day<br>
<br>
</div>Maybe, maybe not. I suspect usage patterns are actually quite complex<br>
and influenced by everything from time of day, to weather, to current<br>
events.<br>
<br>
<br>
<br>
--<br>
This message has been scanned for viruses and<br>
dangerous content by MailScanner, and is<br>
believed to be clean.<br>
<br>
_______________________________________________<br>
grlug mailing list<br>
<a href="mailto:grlug@grlug.org">grlug@grlug.org</a><br>
<a href="http://shinobu.grlug.org/cgi-bin/mailman/listinfo/grlug" target="_blank">http://shinobu.grlug.org/cgi-bin/mailman/listinfo/grlug</a><br>
</blockquote></div><br></div></div>
<br />--
<br />This message has been scanned for viruses and
<br />dangerous content by
<a href="http://www.mailscanner.info/"><b>MailScanner</b></a>, and is
<br />believed to be clean.