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<p>So to summarize, not quite certain which tcp algo they use. But everyone seems to agree that Steam does whatever they can to jam the pipe full<br>
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<div id="x_divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>Fra:</b> Dave Taht <dave.taht@gmail.com><br>
<b>Sendt:</b> onsdag 10. mars 2021 01.57.09<br>
<b>Til:</b> Nils Andreas Svee<br>
<b>Kopi:</b> Jonathan Morton; Toke Høiland-Jørgensen via Cake; Taraldsen Erik<br>
<b>Emne:</b> Re: [Cake] STEAM tcp algo from CDN?</font>
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<div class="PlainText">I would really like them to use less flows - or BBR started up<br>
separately with a 200+ms<br>
interval between starts would be good....<br>
<br>
On Tue, Mar 9, 2021 at 4:31 PM Nils Andreas Svee <me@lochnair.net> wrote:<br>
><br>
> On Wed, 2021-03-10 at 01:14 +0200, Jonathan Morton wrote:<br>
> > > On 9 Mar, 2021, at 10:20 pm, Dave Taht <dave.taht@gmail.com> wrote:<br>
> > ><br>
> > > 10-20 flows, cubic, last I looked. It's ugly.<br>
> ><br>
> > I can't confirm CUBIC from here, but it seems to be 4-8 flows in<br>
> > parallel now. Latency to the national CDN is about 22ms over LTE, so<br>
> > it's hard to distinguish CUBIC from anything else in particular; in<br>
> > this range it would look a lot like NewReno. It seems to shut down<br>
> > each flow and start a fresh one after about a minute.<br>
> Seeing somewhere between 8-16 here I believe. IIRC I've seen you<br>
> mention being located in Finland, if so we're probably on the same<br>
> datacenter in Stockholm.<br>
><br>
> The flows are probably not lasting long because the downloads are split<br>
> into chunks, which according to my logs are at most 1 MB. Patches seem<br>
> to work differently, those can be much larger (logs shows the largest<br>
> one the past months was 137 MB, depends on the game I assume).<br>
><br>
> --<br>
> Best Regards,<br>
> Nils<br>
><br>
<br>
<br>
-- <br>
"For a successful technology, reality must take precedence over public<br>
relations, for Mother Nature cannot be fooled" - Richard Feynman<br>
<br>
dave@taht.net <Dave Täht> CTO, TekLibre, LLC Tel: 1-831-435-0729<br>
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