General list for discussing Bufferbloat
 help / color / mirror / Atom feed
From: Sebastian Moeller <moeller0@gmx.de>
To: Benjamin Cronce <bcronce@gmail.com>
Cc: bloat@lists.bufferbloat.net
Subject: Re: [Bloat] Bloat done correctly?
Date: Fri, 12 Jun 2015 11:08:32 +0200	[thread overview]
Message-ID: <6AD8E150-5751-43AC-8F6C-8175C1E92DE1@gmx.de> (raw)
In-Reply-To: <CAJ_ENFGcAqSTpsVrm2giiRNNrEoJ5ivR_bD6SPsObo29A1s5ng@mail.gmail.com>

Hi Benjamin,

To go off onto a tangent:

On Jun 12, 2015, at 06:45 , Benjamin Cronce <bcronce@gmail.com> wrote:

> [...]
> Under load while doing P2P(About 80Mb down and 20Mb up just as I started the test)
> HFSC: P2P in 20% queue and 80/443/8080 in 40% queue with ACKs going to a 20% realtime queue
> http://www.dslreports.com/speedtest/622452

	I know this is not really your question, but I think the ACKs should go into the same queue as the matching data packets. Think about it that way, if the data is delayed due to congestion it does not make too much sense to tell the sender to send more faster (which essentially is what ACK prioritization does) as that will not really reduce the congestion but rather increase it. 
	There is one caveat though: when ECN is used it might make sense to send out the ACK that will signal the congestion state back to the sender faster… So if you prioritize ACKs only select those with an ECN-Echo flag ;) 
	@bloat : What do you all think about this refined ACK prioritization scheme?

Best Regards
	Sebastian



  reply	other threads:[~2015-06-12  9:08 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-06-12  4:45 Benjamin Cronce
2015-06-12  9:08 ` Sebastian Moeller [this message]
2015-06-12 15:33   ` Benjamin Cronce
2015-06-12 17:51     ` Sebastian Moeller
2015-06-12 18:44       ` Benjamin Cronce
2015-06-12 18:51   ` Alex Elsayed
2015-06-12 19:14     ` Jonathan Morton
2015-06-12 19:54       ` Sebastian Moeller
2015-06-12 21:19         ` Benjamin Cronce
2015-06-12 19:21     ` Sebastian Moeller
2015-06-12 22:56       ` Alex Elsayed
2015-06-13  7:13         ` Sebastian Moeller

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

  List information: https://lists.bufferbloat.net/postorius/lists/bloat.lists.bufferbloat.net/

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=6AD8E150-5751-43AC-8F6C-8175C1E92DE1@gmx.de \
    --to=moeller0@gmx.de \
    --cc=bcronce@gmail.com \
    --cc=bloat@lists.bufferbloat.net \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox