From: Juliusz Chroboczek <jch@irif.fr>
To: Mikael Abrahamsson <swmike@swm.pp.se>
Cc: Sebastian Moeller <moeller0@gmx.de>,
starlink@lists.bufferbloat.net,
Jonathan Morton <chromatix99@gmail.com>,
Mikael Abrahamsson via Bloat <bloat@lists.bufferbloat.net>
Subject: Re: [Starlink] [Bloat] Of interest: Comcast AQM Paper
Date: Wed, 04 Aug 2021 20:31:08 +0200 [thread overview]
Message-ID: <87wnp1kqoj.wl-jch@irif.fr> (raw)
In-Reply-To: <alpine.DEB.2.20.2108041504480.13354@uplift.swm.pp.se>
Hi Mikael,
> If it's not hw accelerated, it sucks.
Fortunately, that hasn't been true in a long time. Two data points.
The WND3700v2/WNDR3800, which is now over ten years old, can easily
forward 400Mbit/s NATed IPv4 (max-sized packets) in software. To be fair,
it can saturate 1Gbit/s with hardware offload.
A Cortex-A53 SoC at 1GHz with correctly designed Ethernet (i.e. not the
Raspberry Pi) can push 1Gbit from userspace without breaking a sweat.
I agree with you that hardware acceleration has a number of advantages,
but given the speed of modern embedded chips, there is no longer much
reason to give up the flexibility and ease of development of pure software
solutions just to save a couple hundred mW, at least not until we get
10Gbit/s CPEs.
-- Juliusz
next prev parent reply other threads:[~2021-08-04 18:31 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-01 20:20 Livingood, Jason
2021-08-01 21:39 ` Dick Roy
2021-08-04 11:49 ` Jonathan Morton
2021-08-04 12:46 ` Mikael Abrahamsson
2021-08-04 13:03 ` Sebastian Moeller
2021-08-04 13:06 ` Mikael Abrahamsson
2021-08-04 13:43 ` Sebastian Moeller
2021-08-04 18:28 ` Jonathan Morton
2021-08-04 20:44 ` David Lang
2021-08-04 20:51 ` Sebastian Moeller
2021-08-04 18:31 ` Juliusz Chroboczek [this message]
2021-08-04 18:58 ` Jonathan Morton
2021-08-04 20:08 ` Jonathan Bennett
2021-08-04 20:18 ` Nathan Owens
2021-08-04 20:46 ` Jonathan Bennett
2021-08-05 0:24 ` Michael Richardson
2021-08-05 15:11 ` Frank Carmickle
2021-08-07 23:59 ` Michael Richardson
2021-08-07 20:31 ` Dave Taht
-- strict thread matches above, loose matches on Subject: below --
2021-08-01 20:21 Livingood, Jason
2021-07-30 21:28 [Starlink] " Livingood, Jason
2021-07-31 17:50 ` [Starlink] [Bloat] " Simon Barber
2021-07-31 19:26 ` Aaron Wood
2021-07-31 22:55 ` Neal Cardwell
2021-08-01 13:13 ` Michael Richardson
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