[Cerowrt-devel] my thx to spacex (and kerbal space program) forcheering me up all year

[David P. Reed]

It has bufferbloat? 

Why am I not surprised?

I can share that one stack hasn't had it from the start, by design. That is one implemented for trading at 10+ GB/sec, implemented in Verilog, and now apparently in production use at one of the largest NY trading intermediaries.

Why? Simply two reasons:

1. People who design parallel hardware systems are trained to focus on closing timing constraints. Which means never using FIFOs that are longer than absolute minimum. The designer is a VLSI designer by trade, not a networking guy.

2. Trading is all about managing delay. In this case, 100 msec packet delay is worst allowable case end to end.

Yet it is full TCP in hardware.

Can't share more, because I don't know more, it being all proprietary to the bank in question.

Now, one wonders: why can't Starlink get it right first time?

It's not like bufferbloat is hard on a single bent pipe hop, which is all Starlink does today.

-----Original Message-----
From: "Dave Taht" <dave.taht at gmail.com>
Sent: Thu, Dec 31, 2020 at 1:37 pm
To: "bloat" <bloat at lists.bufferbloat.net>, "cerowrt-devel" <cerowrt-devel at lists.bufferbloat.net>, "Scott Manley" <scottmanley1972 at gmail.com>
Cc: "bloat" <bloat at lists.bufferbloat.net>, "cerowrt-devel" <cerowrt-devel at lists.bufferbloat.net>, "Scott Manley" <scottmanley1972 at gmail.com>
Subject: [Cerowrt-devel] my thx to spacex (and kerbal space program) forcheering me up all year

If it wasn't for such a long list of wonderful accomplishments in
space, it would have been a sadder year. i just re-recorded my song
"one first landing" out on my dinghy:

https://www.youtube.com/watch?v=wjur0RG-v-I&feature=youtu.be

Maybe someday I'll get scott manley to do his verse on this. Try as I
might over the past few years, I still can't cop his accent.

Now if we can only fix starlink's bufferbloat! It looks to me like the
firmware is QCA's openwrt derivative...

-- 
"For a successful technology, reality must take precedence over public
relations, for Mother Nature cannot be fooled" - Richard Feynman

dave at taht.net  CTO, TekLibre, LLC Tel: 1-831-435-0729
_______________________________________________
Cerowrt-devel mailing list
Cerowrt-devel at lists.bufferbloat.net
https://lists.bufferbloat.net/listinfo/cerowrt-devel