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<p class="MsoNormal">I’m looking for a practical guide – i.e. specifically NOT an academic paper, thanks anyway – to predicting the effect of increased (or decreased) latency on my user’s applications.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Specifically, I want to estimate how much improvement there will be in {bandwidth, application XYZ responsiveness, protocol ABC goodput, whatever} if I decrease the RTT between the user and the server by 10msec, or by 20msec, or by 40msec.
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">My googling has come up with lots of research articles discussing theoretical frameworks for figuring this out, but nothing concrete in terms of a calculator or even a rule-of-thumb.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Ultimately, this goes into MY calculator – we have the usual north-american duopoly on last-mile consumer internet here; I’m connected directly to only one of the two. There’s a cost $X to improve connectivity so I’m peered with both,
how do I tell if it will be worthwhile?<o:p></o:p></p>
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<p class="MsoNormal">Anyone got anything at all that might help me?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks in advance,<o:p></o:p></p>
<p class="MsoNormal">-Adam<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-size:10.0pt;color:#44546A;mso-fareast-language:EN-CA">Adam Thompson</span></b><span lang="EN-US" style="font-size:9.0pt;color:#44546A;mso-fareast-language:EN-CA"><br>
Consultant, Infrastructure Services<br>
</span><a href="https://www.merlin.mb.ca/"><b><span lang="EN-US" style="font-size:9.0pt;color:#44546A;mso-fareast-language:EN-CA;text-decoration:none"><img border="0" width="127" height="38" style="width:1.3229in;height:.3958in" id="Picture_x0020_1" src="cid:image001.png@01D60D03.64EF5DC0" alt="[MERLIN LOGO]"></span></b></a><span lang="EN-US" style="font-size:9.0pt;color:#44546A;mso-fareast-language:EN-CA"><br>
100 - 135 Innovation Drive<br>
Winnipeg, MB, R3T 6A8<br>
(204) 977-6824 or 1-800-430-6404 (MB only)<br>
<a href="mailto:athompson@merlin.mb.ca"><span style="color:#44546A">athompson@merlin.mb.ca</span></a><br>
<a href="http://www.merlin.mb.ca/"><span style="color:#44546A">www.merlin.mb.ca</span></a><o:p></o:p></span></p>
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