<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;">Hi Kevin, <br>
<br>
Maybe don't use the ptm keyword, but rather reduce the shaper rates to at most 98.46 percent of the sync rate...<br><br><div class="gmail_quote">On July 24, 2018 4:54:01 PM GMT+02:00, Kevin Darbyshire-Bryant <kevin@darbyshire-bryant.me.uk> wrote:<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<br class=""><br class=""><blockquote type="cite" class="">On 24 Jul 2018, at 14:51, Dave Taht <<a href="mailto:dave.taht@gmail.com" class="">dave.taht@gmail.com</a>> wrote:<br class=""><br class="">Now that you can join the party, I note there IS a flent server in england with irtt on it.<br class=""><br class="">flent-<a href="http://london.bufferbloat.net" class="">london.bufferbloat.net</a><br class=""></blockquote><br class=""><div class="">Ok, well if you’re desperately interested….. :-)</div><div class=""><br class=""></div><div class="">Plot I did running to the london server, one shaped at 99% downstream, the other at 98%…. and I’ve decided to stick at 98% as a result - plot is a little bit hard to distinguish but I’d say there’s around 8ms avg less latency-ish between the two. And an order of magnitude between using london v fremont :-)</div><div class=""><br class=""></div><div class="">The upstream barely registers</div><div class=""><br class=""></div><div class=""># tc -s qdisc show dev ifb4eth0</div>qdisc cake 801a: root refcnt 2 bandwidth 78400Kbit diffserv3 dual-dsthost nat ingress split-gso rtt 100.0ms ptm overhead 26 <div class=""><br class=""></div><div class=""><br class=""></div><div class=""><img apple-inline="yes" id="523F4C5A-A9D2-4A26-9863-312F7FD24527" src="cid:8FBA9508-8E80-4DEF-AAED-95B6BE8B1BF7@lan.darbyshire-bryant.me.uk" class=""></div></blockquote></div><br>
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