<div>It may not be a direct buffer bloat problem, but the berkeley tool to identify buffer bloat gives a lot of useful info, maybe helpful to you in your troubleshooting if you have not yet used it (or something similar):</div>
<div><br></div><div><a href="http://netalyzr.icsi.berkeley.edu/index.html">http://netalyzr.icsi.berkeley.edu/index.html</a> <br><br>cheers!</div><div>Kress<br><br><div class="gmail_quote">On Wed, Jun 6, 2012 at 8:53 PM, Daniel Hagerty <span dir="ltr"><<a href="mailto:hag@linnaean.org" target="_blank">hag@linnaean.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">Daniel Feenberg <<a href="mailto:feenberg@nber.org">feenberg@nber.org</a>> writes:<br>
<br>
> I have difficulty reconciling these facts. If pings are fast and packets<br>
> are not dropped, why do users see problems? I can confirm things seem<br>
> slow. Is this the dreaded "buffer bloat" problem so recently hyped? Is<br>
> there anything I can do here to aleviate it while waiting for more<br>
> bandwidth?<br>
<br>
</div> I agree, it doesn't quite add up. Bufferbloat would show up with<br>
slow ping, or other slow real time apps. Try interactive ssh over the<br>
suspect link and see what your fingers tell you about round trip times.<br>
<br>
It's possible that the link has a really snazzy queueing setup with<br>
buffering issues within it. The theory here would be that the ping<br>
you're running is hitting a small queue, but the traffic your users<br>
actually care about are all hitting an overfull one.<br>
<br>
I've solved problems like this in the past with clever queueing, but<br>
it's not clear that this is your problem.<br>
<div class="HOEnZb"><div class="h5"><br>
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